boot flooded with unwind: Index not found

boot flooded with unwind: Index not found

[Corentin Labbe]

Hello

I booted today linux-next (20220301) and my boot is flooded with:
[    0.000000] unwind: Index not found c0f0c440
[    0.000000] unwind: Index not found 00000000
[    0.000000] unwind: Index not found c0f0c440
[    0.000000] unwind: Index not found 00000000

This happen on a sun8i-a83t-bananapi-m3

Regards

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boot flooded with unwind: Index not found

[Corentin Labbe]

Hello

I booted today linux-next (20220301) and my boot is flooded with:
[    0.000000] unwind: Index not found c0f0c440
[    0.000000] unwind: Index not found 00000000
[    0.000000] unwind: Index not found c0f0c440
[    0.000000] unwind: Index not found 00000000

This happen on a sun8i-a83t-bananapi-m3

Regards

Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> Hello
> 
> I booted today linux-next (20220301) and my boot is flooded with:
> [    0.000000] unwind: Index not found c0f0c440
> [    0.000000] unwind: Index not found 00000000
> [    0.000000] unwind: Index not found c0f0c440
> [    0.000000] unwind: Index not found 00000000
> 
> This happen on a sun8i-a83t-bananapi-m3

Have you enabled vmapped stacks?

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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> Hello
> 
> I booted today linux-next (20220301) and my boot is flooded with:
> [    0.000000] unwind: Index not found c0f0c440
> [    0.000000] unwind: Index not found 00000000
> [    0.000000] unwind: Index not found c0f0c440
> [    0.000000] unwind: Index not found 00000000
> 
> This happen on a sun8i-a83t-bananapi-m3

Have you enabled vmapped stacks?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > Hello
> >
> > I booted today linux-next (20220301) and my boot is flooded with:
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> >
> > This happen on a sun8i-a83t-bananapi-m3
>
> Have you enabled vmapped stacks?
>

This is probably related to

538b9265c063 ARM: unwind: track location of LR value in stack frame

which removes a kernel_text_address() check on frame->pc as it is
essentially redundant, given that we won't find unwind data otherwise.
Unfortunately, I failed to realise that the other check carries a
pr_warn(), which may apparently fire spuriously in some cases.

The 0x0 value can easily be filtered out, but i would be interesting
where the other value originates from. We might be able to solve this
with a simple .nounwind directive in a asm routine somewhere.

I'll prepare a patch that disregards the 0x0 value - could you check
in the mean time what the address 0xcf0c440 coincides with in your
build?

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Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > Hello
> >
> > I booted today linux-next (20220301) and my boot is flooded with:
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> >
> > This happen on a sun8i-a83t-bananapi-m3
>
> Have you enabled vmapped stacks?
>

This is probably related to

538b9265c063 ARM: unwind: track location of LR value in stack frame

which removes a kernel_text_address() check on frame->pc as it is
essentially redundant, given that we won't find unwind data otherwise.
Unfortunately, I failed to realise that the other check carries a
pr_warn(), which may apparently fire spuriously in some cases.

The 0x0 value can easily be filtered out, but i would be interesting
where the other value originates from. We might be able to solve this
with a simple .nounwind directive in a asm routine somewhere.

I'll prepare a patch that disregards the 0x0 value - could you check
in the mean time what the address 0xcf0c440 coincides with in your
build?

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
>
> On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> <linux@armlinux.org.uk> wrote:
> >
> > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > Hello
> > >
> > > I booted today linux-next (20220301) and my boot is flooded with:
> > > [    0.000000] unwind: Index not found c0f0c440
> > > [    0.000000] unwind: Index not found 00000000
> > > [    0.000000] unwind: Index not found c0f0c440
> > > [    0.000000] unwind: Index not found 00000000
> > >
> > > This happen on a sun8i-a83t-bananapi-m3
> >
> > Have you enabled vmapped stacks?
> >
>
> This is probably related to
>
> 538b9265c063 ARM: unwind: track location of LR value in stack frame
>
> which removes a kernel_text_address() check on frame->pc as it is
> essentially redundant, given that we won't find unwind data otherwise.
> Unfortunately, I failed to realise that the other check carries a
> pr_warn(), which may apparently fire spuriously in some cases.
>
> The 0x0 value can easily be filtered out, but i would be interesting
> where the other value originates from. We might be able to solve this
> with a simple .nounwind directive in a asm routine somewhere.
>
> I'll prepare a patch that disregards the 0x0 value - could you check
> in the mean time what the address 0xcf0c440 coincides with in your
> build?

Something like the below should restore the previous behavior, while
taking the kernel_text_address() check out of the hot path.

--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)

        idx = unwind_find_idx(frame->pc);
        if (!idx) {
-               pr_warn("unwind: Index not found %08lx\n", frame->pc);
+               if (frame->pc && kernel_text_address(frame->pc))
+                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
                return -URC_FAILURE;
        }

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Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
>
> On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> <linux@armlinux.org.uk> wrote:
> >
> > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > Hello
> > >
> > > I booted today linux-next (20220301) and my boot is flooded with:
> > > [    0.000000] unwind: Index not found c0f0c440
> > > [    0.000000] unwind: Index not found 00000000
> > > [    0.000000] unwind: Index not found c0f0c440
> > > [    0.000000] unwind: Index not found 00000000
> > >
> > > This happen on a sun8i-a83t-bananapi-m3
> >
> > Have you enabled vmapped stacks?
> >
>
> This is probably related to
>
> 538b9265c063 ARM: unwind: track location of LR value in stack frame
>
> which removes a kernel_text_address() check on frame->pc as it is
> essentially redundant, given that we won't find unwind data otherwise.
> Unfortunately, I failed to realise that the other check carries a
> pr_warn(), which may apparently fire spuriously in some cases.
>
> The 0x0 value can easily be filtered out, but i would be interesting
> where the other value originates from. We might be able to solve this
> with a simple .nounwind directive in a asm routine somewhere.
>
> I'll prepare a patch that disregards the 0x0 value - could you check
> in the mean time what the address 0xcf0c440 coincides with in your
> build?

Something like the below should restore the previous behavior, while
taking the kernel_text_address() check out of the hot path.

--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)

        idx = unwind_find_idx(frame->pc);
        if (!idx) {
-               pr_warn("unwind: Index not found %08lx\n", frame->pc);
+               if (frame->pc && kernel_text_address(frame->pc))
+                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
                return -URC_FAILURE;
        }

Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> >
> > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > <linux@armlinux.org.uk> wrote:
> > >
> > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > Hello
> > > >
> > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > >
> > > > This happen on a sun8i-a83t-bananapi-m3
> > >
> > > Have you enabled vmapped stacks?
> > >
> >
> > This is probably related to
> >
> > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> >
> > which removes a kernel_text_address() check on frame->pc as it is
> > essentially redundant, given that we won't find unwind data otherwise.
> > Unfortunately, I failed to realise that the other check carries a
> > pr_warn(), which may apparently fire spuriously in some cases.
> >
> > The 0x0 value can easily be filtered out, but i would be interesting
> > where the other value originates from. We might be able to solve this
> > with a simple .nounwind directive in a asm routine somewhere.
> >
> > I'll prepare a patch that disregards the 0x0 value - could you check
> > in the mean time what the address 0xcf0c440 coincides with in your
> > build?
> 
> Something like the below should restore the previous behavior, while
> taking the kernel_text_address() check out of the hot path.
> 
> --- a/arch/arm/kernel/unwind.c
> +++ b/arch/arm/kernel/unwind.c
> @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> 
>         idx = unwind_find_idx(frame->pc);
>         if (!idx) {
> -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> +               if (frame->pc && kernel_text_address(frame->pc))
> +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
>                 return -URC_FAILURE;
>         }

Thanks, message are not shown anymore.
But now I have other errors (perhaps not related):
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Banana Pi BPI-M3
[    0.000000] earlycon: uart0 at MMIO32 0x01c28000 (options '')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 16 MiB at 0xbf000000
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000040000000-0x000000006fffffff]
[    0.000000]   HighMem  [mem 0x0000000070000000-0x00000000bfffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] percpu: Embedded 16 pages/cpu s34740 r8192 d22604 u65536
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 522752
[    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x01c28000 ip=dhcp
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 2016360K/2097152K available (9216K kernel code, 1534K rwdata, 3328K rodata, 1024K init, 7189K bss, 64408K reserved, 16384K cma-reserved, 1294336K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.000000] trace event string verifier disabled
[    0.000000] Running RCU self tests
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: 	RCU event tracing is enabled.
[    0.000000] rcu: 	RCU lockdep checking is enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] random: get_random_bytes called from start_kernel+0x534/0x6cc with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.008660] Switching to timer-based delay loop, resolution 41ns
[    0.015599] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.026635] Console: colour dummy device 80x30
[    0.031549] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.039999] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.044452] ... MAX_LOCK_DEPTH:          48
[    0.049004] ... MAX_LOCKDEP_KEYS:        8192
[    0.053774] ... CLASSHASH_SIZE:          4096
[    0.058511] ... MAX_LOCKDEP_ENTRIES:     32768
[    0.063349] ... MAX_LOCKDEP_CHAINS:      65536
[    0.068222] ... CHAINHASH_SIZE:          32768
[    0.073054]  memory used by lock dependency info: 4061 kB
[    0.078950]  memory used for stack traces: 2112 kB
[    0.084155]  per task-struct memory footprint: 1536 bytes
[    0.090209] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.101504] pid_max: default: 32768 minimum: 301
[    0.107656] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.115669] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.127831] CPU: Testing write buffer coherency: ok
[    0.135293] /cpus/cpu@0 missing clock-frequency property
[    0.141394] /cpus/cpu@1 missing clock-frequency property
[    0.147356] /cpus/cpu@2 missing clock-frequency property
[    0.153422] /cpus/cpu@3 missing clock-frequency property
[    0.159447] /cpus/cpu@100 missing clock-frequency property
[    0.165760] /cpus/cpu@101 missing clock-frequency property
[    0.172058] /cpus/cpu@102 missing clock-frequency property
[    0.178452] /cpus/cpu@103 missing clock-frequency property
[    0.184451] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.196487] Setting up static identity map for 0x40100000 - 0x40100060
[    0.206468] ARM CCI driver probed
[    0.211477] sunxi multi cluster SMP support installed
[    0.218724] rcu: Hierarchical SRCU implementation.
[    0.229044] smp: Bringing up secondary CPUs ...
[    0.239387] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.239462] 
[    0.239468] 
[    0.239476] =============================
[    0.239479] WARNING: suspicious RCU usage
[    0.239485] 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197 Not tainted
[    0.239493] -----------------------------
[    0.239497] include/trace/events/lock.h:58 suspicious rcu_dereference_check() usage!
[    0.239505] 
[    0.239505] other info that might help us debug this:
[    0.239505] 
[    0.239509] 
[    0.239509] rcu_scheduler_active = 1, debug_locks = 1
[    0.239516] RCU used illegally from extended quiescent state!
[    0.239521] 1 lock held by swapper/0/0:
[    0.239527]  #0: c0f15b4c ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xc/0x2c
[    0.239598] 
[    0.239598] stack backtrace:
[    0.239607] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197
[    0.239619] Hardware name: Allwinner A83t board
[    0.239629]  unwind_backtrace from show_stack+0x10/0x14
[    0.239654]  show_stack from init_stack+0x1c54/0x2000
[    0.343881] =============================
[    0.348205] WARNING: suspicious RCU usage
[    0.352529] 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197 Not tainted
[    0.360417] -----------------------------
[    0.364741] include/trace/events/lock.h:13 suspicious rcu_dereference_check() usage!
[    0.373098] 
[    0.373098] other info that might help us debug this:
[    0.373098] 
[    0.381738] 
[    0.381738] rcu_scheduler_active = 1, debug_locks = 1
[    0.388787] RCU used illegally from extended quiescent state!
[    0.394992] no locks held by swapper/0/0.
[    0.399317] 
[    0.399317] stack backtrace:
[    0.404014] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197
[    0.414706] Hardware name: Allwinner A83t board
[    0.419595]  unwind_backtrace from show_stack+0x10/0x14
[    0.425251]  show_stack from init_stack+0x1d5c/0x2000

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Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> >
> > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > <linux@armlinux.org.uk> wrote:
> > >
> > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > Hello
> > > >
> > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > >
> > > > This happen on a sun8i-a83t-bananapi-m3
> > >
> > > Have you enabled vmapped stacks?
> > >
> >
> > This is probably related to
> >
> > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> >
> > which removes a kernel_text_address() check on frame->pc as it is
> > essentially redundant, given that we won't find unwind data otherwise.
> > Unfortunately, I failed to realise that the other check carries a
> > pr_warn(), which may apparently fire spuriously in some cases.
> >
> > The 0x0 value can easily be filtered out, but i would be interesting
> > where the other value originates from. We might be able to solve this
> > with a simple .nounwind directive in a asm routine somewhere.
> >
> > I'll prepare a patch that disregards the 0x0 value - could you check
> > in the mean time what the address 0xcf0c440 coincides with in your
> > build?
> 
> Something like the below should restore the previous behavior, while
> taking the kernel_text_address() check out of the hot path.
> 
> --- a/arch/arm/kernel/unwind.c
> +++ b/arch/arm/kernel/unwind.c
> @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> 
>         idx = unwind_find_idx(frame->pc);
>         if (!idx) {
> -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> +               if (frame->pc && kernel_text_address(frame->pc))
> +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
>                 return -URC_FAILURE;
>         }

Thanks, message are not shown anymore.
But now I have other errors (perhaps not related):
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Banana Pi BPI-M3
[    0.000000] earlycon: uart0 at MMIO32 0x01c28000 (options '')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 16 MiB at 0xbf000000
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000040000000-0x000000006fffffff]
[    0.000000]   HighMem  [mem 0x0000000070000000-0x00000000bfffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] percpu: Embedded 16 pages/cpu s34740 r8192 d22604 u65536
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 522752
[    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x01c28000 ip=dhcp
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 2016360K/2097152K available (9216K kernel code, 1534K rwdata, 3328K rodata, 1024K init, 7189K bss, 64408K reserved, 16384K cma-reserved, 1294336K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.000000] trace event string verifier disabled
[    0.000000] Running RCU self tests
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: 	RCU event tracing is enabled.
[    0.000000] rcu: 	RCU lockdep checking is enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] random: get_random_bytes called from start_kernel+0x534/0x6cc with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.008660] Switching to timer-based delay loop, resolution 41ns
[    0.015599] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.026635] Console: colour dummy device 80x30
[    0.031549] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.039999] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.044452] ... MAX_LOCK_DEPTH:          48
[    0.049004] ... MAX_LOCKDEP_KEYS:        8192
[    0.053774] ... CLASSHASH_SIZE:          4096
[    0.058511] ... MAX_LOCKDEP_ENTRIES:     32768
[    0.063349] ... MAX_LOCKDEP_CHAINS:      65536
[    0.068222] ... CHAINHASH_SIZE:          32768
[    0.073054]  memory used by lock dependency info: 4061 kB
[    0.078950]  memory used for stack traces: 2112 kB
[    0.084155]  per task-struct memory footprint: 1536 bytes
[    0.090209] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.101504] pid_max: default: 32768 minimum: 301
[    0.107656] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.115669] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.127831] CPU: Testing write buffer coherency: ok
[    0.135293] /cpus/cpu@0 missing clock-frequency property
[    0.141394] /cpus/cpu@1 missing clock-frequency property
[    0.147356] /cpus/cpu@2 missing clock-frequency property
[    0.153422] /cpus/cpu@3 missing clock-frequency property
[    0.159447] /cpus/cpu@100 missing clock-frequency property
[    0.165760] /cpus/cpu@101 missing clock-frequency property
[    0.172058] /cpus/cpu@102 missing clock-frequency property
[    0.178452] /cpus/cpu@103 missing clock-frequency property
[    0.184451] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.196487] Setting up static identity map for 0x40100000 - 0x40100060
[    0.206468] ARM CCI driver probed
[    0.211477] sunxi multi cluster SMP support installed
[    0.218724] rcu: Hierarchical SRCU implementation.
[    0.229044] smp: Bringing up secondary CPUs ...
[    0.239387] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.239462] 
[    0.239468] 
[    0.239476] =============================
[    0.239479] WARNING: suspicious RCU usage
[    0.239485] 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197 Not tainted
[    0.239493] -----------------------------
[    0.239497] include/trace/events/lock.h:58 suspicious rcu_dereference_check() usage!
[    0.239505] 
[    0.239505] other info that might help us debug this:
[    0.239505] 
[    0.239509] 
[    0.239509] rcu_scheduler_active = 1, debug_locks = 1
[    0.239516] RCU used illegally from extended quiescent state!
[    0.239521] 1 lock held by swapper/0/0:
[    0.239527]  #0: c0f15b4c ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xc/0x2c
[    0.239598] 
[    0.239598] stack backtrace:
[    0.239607] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197
[    0.239619] Hardware name: Allwinner A83t board
[    0.239629]  unwind_backtrace from show_stack+0x10/0x14
[    0.239654]  show_stack from init_stack+0x1c54/0x2000
[    0.343881] =============================
[    0.348205] WARNING: suspicious RCU usage
[    0.352529] 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197 Not tainted
[    0.360417] -----------------------------
[    0.364741] include/trace/events/lock.h:13 suspicious rcu_dereference_check() usage!
[    0.373098] 
[    0.373098] other info that might help us debug this:
[    0.373098] 
[    0.381738] 
[    0.381738] rcu_scheduler_active = 1, debug_locks = 1
[    0.388787] RCU used illegally from extended quiescent state!
[    0.394992] no locks held by swapper/0/0.
[    0.399317] 
[    0.399317] stack backtrace:
[    0.404014] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00132-gc96ac15508a4-dirty #197
[    0.414706] Hardware name: Allwinner A83t board
[    0.419595]  unwind_backtrace from show_stack+0x10/0x14
[    0.425251]  show_stack from init_stack+0x1d5c/0x2000

Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> >
> > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > <linux@armlinux.org.uk> wrote:
> > >
> > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > Hello
> > > >
> > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > >
> > > > This happen on a sun8i-a83t-bananapi-m3
> > >
> > > Have you enabled vmapped stacks?
> > >
> >
> > This is probably related to
> >
> > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> >
> > which removes a kernel_text_address() check on frame->pc as it is
> > essentially redundant, given that we won't find unwind data otherwise.
> > Unfortunately, I failed to realise that the other check carries a
> > pr_warn(), which may apparently fire spuriously in some cases.
> >
> > The 0x0 value can easily be filtered out, but i would be interesting
> > where the other value originates from. We might be able to solve this
> > with a simple .nounwind directive in a asm routine somewhere.
> >
> > I'll prepare a patch that disregards the 0x0 value - could you check
> > in the mean time what the address 0xcf0c440 coincides with in your
> > build?
> 
> Something like the below should restore the previous behavior, while
> taking the kernel_text_address() check out of the hot path.
> 
> --- a/arch/arm/kernel/unwind.c
> +++ b/arch/arm/kernel/unwind.c
> @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> 
>         idx = unwind_find_idx(frame->pc);
>         if (!idx) {
> -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> +               if (frame->pc && kernel_text_address(frame->pc))
> +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
>                 return -URC_FAILURE;
>         }

Hello

This is a more detailed trace from my follow up after your patch:
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Banana Pi BPI-M3
[    0.000000] earlycon: uart0 at MMIO32 0x01c28000 (options '')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 16 MiB at 0xbf000000
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000040000000-0x000000006fffffff]
[    0.000000]   HighMem  [mem 0x0000000070000000-0x00000000bfffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] percpu: Embedded 16 pages/cpu s34740 r8192 d22604 u65536
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 522752
[    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x01c28000 ip=dhcp
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 2015596K/2097152K available (9216K kernel code, 1542K rwdata, 3468K rodata, 1024K init, 7190K bss, 65172K reserved, 16384K cma-reserved, 1294336K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.000000] trace event string verifier disabled
[    0.000000] Running RCU self tests
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: 	RCU event tracing is enabled.
[    0.000000] rcu: 	RCU lockdep checking is enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] random: get_random_bytes called from start_kernel+0x534/0x6cc with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.008654] Switching to timer-based delay loop, resolution 41ns
[    0.015612] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.026625] Console: colour dummy device 80x30
[    0.031541] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.039985] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.044455] ... MAX_LOCK_DEPTH:          48
[    0.049009] ... MAX_LOCKDEP_KEYS:        8192
[    0.053781] ... CLASSHASH_SIZE:          4096
[    0.058518] ... MAX_LOCKDEP_ENTRIES:     32768
[    0.063349] ... MAX_LOCKDEP_CHAINS:      65536
[    0.068214] ... CHAINHASH_SIZE:          32768
[    0.073055]  memory used by lock dependency info: 4061 kB
[    0.078950]  memory used for stack traces: 2112 kB
[    0.084155]  per task-struct memory footprint: 1536 bytes
[    0.090217] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.101518] pid_max: default: 32768 minimum: 301
[    0.107666] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.115682] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.127870] CPU: Testing write buffer coherency: ok
[    0.135278] /cpus/cpu@0 missing clock-frequency property
[    0.141378] /cpus/cpu@1 missing clock-frequency property
[    0.147357] /cpus/cpu@2 missing clock-frequency property
[    0.153416] /cpus/cpu@3 missing clock-frequency property
[    0.159451] /cpus/cpu@100 missing clock-frequency property
[    0.165776] /cpus/cpu@101 missing clock-frequency property
[    0.172064] /cpus/cpu@102 missing clock-frequency property
[    0.178450] /cpus/cpu@103 missing clock-frequency property
[    0.184459] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.196481] Setting up static identity map for 0x40100000 - 0x40100060
[    0.206495] ARM CCI driver probed
[    0.211504] sunxi multi cluster SMP support installed
[    0.218782] rcu: Hierarchical SRCU implementation.
[    0.229101] smp: Bringing up secondary CPUs ...
[    0.239445] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.239515] 
[    0.239521] 
[    0.239529] =============================
[    0.239533] WARNING: suspicious RCU usage
[    0.239539] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
[    0.239547] -----------------------------
[    0.239550] include/trace/events/lock.h:58 suspicious rcu_dereference_check() usage!
[    0.239559] 
[    0.239559] other info that might help us debug this:
[    0.239559] 
[    0.239563] 
[    0.239563] rcu_scheduler_active = 1, debug_locks = 1
[    0.239570] RCU used illegally from extended quiescent state!
[    0.239574] 1 lock held by swapper/0/0:
[    0.239581]  #0: c0f15b4c ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xc/0x2c
[    0.239652] 
[    0.239652] stack backtrace:
[    0.239659] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[    0.239671] Hardware name: Allwinner A83t board
[    0.239680]  unwind_backtrace from show_stack+0x10/0x14
[    0.239706]  show_stack from init_stack+0x1c54/0x2000
[    0.343924] =============================
[    0.348249] WARNING: suspicious RCU usage
[    0.352574] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
[    0.360463] -----------------------------
[    0.364795] include/trace/events/lock.h:13 suspicious rcu_dereference_check() usage!
[    0.373153] 
[    0.373153] other info that might help us debug this:
[    0.373153] 
[    0.381786] 
[    0.381786] rcu_scheduler_active = 1, debug_locks = 1
[    0.388835] RCU used illegally from extended quiescent state!
[    0.395031] no locks held by swapper/0/0.
[    0.399357] 
[    0.399357] stack backtrace:
[    0.404063] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[    0.414764] Hardware name: Allwinner A83t board
[    0.419654]  unwind_backtrace from show_stack+0x10/0x14
[    0.425310]  show_stack from init_stack+0x1d5c/0x2000
[    0.437285] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.443866] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.450159] CPU4: thread -1, cpu 0, socket 1, mpidr 80000100
[    0.456318] CPU5: thread -1, cpu 1, socket 1, mpidr 80000101
[    0.463067] CPU6: thread -1, cpu 2, socket 1, mpidr 80000102
[    0.469085] CPU7: thread -1, cpu 3, socket 1, mpidr 80000103
[    0.470310] smp: Brought up 1 node, 8 CPUs
[    0.511987] SMP: Total of 8 processors activated (384.00 BogoMIPS).
[    0.518815] CPU: All CPU(s) started in SVC mode.
[    0.528747] devtmpfs: initialized
[    0.575460] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.635349] DMA-API: preallocated 65536 debug entries
[    0.640942] DMA-API: debugging enabled by kernel config
[    0.646798] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.657668] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
[    0.667801] pinctrl core: initialized pinctrl subsystem
[    0.680682] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.707352] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.721297] thermal_sys: Registered thermal governor 'step_wise'
[    0.727127] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.742484] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.845166] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
[    0.854770] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
[    0.868363] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
[    0.877968] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
[    0.948337] platform 1ee0000.hdmi: Fixing up cyclic dependency with 1c0d000.lcd-controller
[    0.985080] platform connector: Fixing up cyclic dependency with 1ee0000.hdmi
[    1.055999] SCSI subsystem initialized
[    1.062543] usbcore: registered new interface driver usbfs
[    1.069061] usbcore: registered new interface driver hub
[    1.075249] usbcore: registered new device driver usb
[    1.082481] mc: Linux media interface: v0.10
[    1.087480] videodev: Linux video capture interface: v2.00
[    1.093822] pps_core: LinuxPPS API ver. 1 registered
[    1.099235] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.109239] PTP clock support registered
[    1.115805] Advanced Linux Sound Architecture Driver Initialized.
[    1.128823] clocksource: Switched to clocksource arch_sys_counter
[    1.840156] NET: Registered PF_INET protocol family
[    1.846279] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    1.857520] tcp_listen_portaddr_hash hash table entries: 512 (order: 2, 22528 bytes, linear)
[    1.866898] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    1.876120] TCP bind hash table entries: 8192 (order: 6, 327680 bytes, linear)
[    1.885881] TCP: Hash tables configured (established 8192 bind 8192)
[    1.894083] UDP hash table entries: 512 (order: 3, 49152 bytes, linear)
[    1.901714] UDP-Lite hash table entries: 512 (order: 3, 49152 bytes, linear)
[    1.910798] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    1.922517] RPC: Registered named UNIX socket transport module.
[    1.929185] RPC: Registered udp transport module.
[    1.934335] RPC: Registered tcp transport module.
[    1.939594] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.950532] Trying to unpack rootfs image as initramfs...
[    1.955690] Initialise system trusted keyrings
[    1.963169] workingset: timestamp_bits=30 max_order=19 bucket_order=0
[    2.019818] NFS: Registering the id_resolver key type
[    2.025553] Key type id_resolver registered
[    2.030337] Key type id_legacy registered
[    2.129933] NET: Registered PF_ALG protocol family
[    2.135490] Key type asymmetric registered
[    2.140166] Asymmetric key parser 'x509' registered
[    2.147479] bounce: pool size: 64 pages
[    2.152643] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    2.161050] io scheduler mq-deadline registered
[    2.166023] io scheduler kyber registered
[    2.818294] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    2.911286] brd: module loaded
[    2.990798] loop: module loaded
[    3.011369] CAN device driver interface
[    3.022864] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.030150] ehci-platform: EHCI generic platform driver
[    3.037461] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    3.044379] ohci-platform: OHCI generic platform driver
[    3.063534] i2c_dev: i2c /dev entries driver
[    3.080741] sun8i-rotate 1020000.rotate: Device registered as /dev/video0
[    3.102983] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    3.115379] device-mapper: ioctl: 4.46.0-ioctl (2022-02-22) initialised: dm-devel@redhat.com
[    3.140183] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
[    3.150005] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
[    3.159248] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(aes)
[    3.165597] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(aes)
[    3.172073] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(des3_ede)
[    3.178940] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(des3_ede)
[    3.185718] sun8i-ss 1c15000.crypto: Register md5
[    3.190968] sun8i-ss 1c15000.crypto: Register sha1
[    3.196237] sun8i-ss 1c15000.crypto: Register sha224
[    3.201892] sun8i-ss 1c15000.crypto: Register sha256
[    3.207372] sun8i-ss 1c15000.crypto: Register hmac(sha1)
[    3.213967] sun8i-ss 1c15000.crypto: Security System Die ID 7
[    3.226428] usbcore: registered new interface driver usbhid
[    3.232650] usbhid: USB HID core driver
[    3.265675] Initializing XFRM netlink socket
[    3.270845] NET: Registered PF_PACKET protocol family
[    3.276493] can: controller area network core
[    3.281937] NET: Registered PF_CAN protocol family
[    3.287198] can: raw protocol
[    3.290825] can: broadcast manager protocol
[    3.295480] can: netlink gateway - max_hops=1
[    3.301621] Key type dns_resolver registered
[    3.306640] Registering SWP/SWPB emulation handler
[    3.323559] Loading compiled-in X.509 certificates
[    3.338045] alg: extra crypto tests enabled.  This is intended for developer use only.
[    6.454305] Freeing initrd memory: 24268K
[    6.577353] sun8i-ss 1c15000.crypto: Fallback for hmac-sha1-sun8i-ss is hmac(sha1-generic)
[    6.935170] sun8i-ss 1c15000.crypto: Fallback for sha256-sun8i-ss is sha256-generic
[    7.205127] sun8i-ss 1c15000.crypto: Fallback for sha224-sun8i-ss is sha224-generic
[    7.451810] sun8i-ss 1c15000.crypto: Fallback for sha1-sun8i-ss is sha1-generic
[    7.704434] sun8i-ss 1c15000.crypto: Fallback for md5-sun8i-ss is md5-generic
[    7.811076] random: fast init done
[    7.897484] alg_test_stdrng test sun8i-ss-prng
[    7.995818] sun8i-ss 1c15000.crypto: Fallback for ecb-des3-sun8i-ss is ecb(des3_ede-generic)
[    8.751380] sun8i-ss 1c15000.crypto: Fallback for cbc-des3-sun8i-ss is cbc(des3_ede-generic)
[    9.580606] sun8i-ss 1c15000.crypto: Fallback for ecb-aes-sun8i-ss is ecb(aes-generic)
[    9.943526] sun8i-ss 1c15000.crypto: Fallback for cbc-aes-sun8i-ss is cbc(aes-generic)
[   10.307336] alg_test_stdrng test drbg_nopr_hmac_sha512
[   10.553558] alg_test_stdrng test drbg_nopr_hmac_sha256
[   10.749710] alg_test_stdrng test drbg_nopr_hmac_sha384
[   10.994919] alg_test_stdrng test drbg_nopr_hmac_sha1
[   11.027045] alg_test_stdrng test drbg_nopr_sha256
[   11.079874] alg_test_stdrng test drbg_nopr_sha512
[   11.131980] alg_test_stdrng test drbg_nopr_sha384
[   11.182511] alg_test_stdrng test drbg_nopr_sha1
[   11.213096] alg_test_stdrng test drbg_nopr_ctr_aes256
[   11.391601] alg_test_stdrng test drbg_nopr_ctr_aes192
[   11.436864] alg_test_stdrng test drbg_nopr_ctr_aes128
[   11.470634] alg_test_stdrng test drbg_pr_hmac_sha512
[   11.548614] alg_test_stdrng test drbg_pr_hmac_sha256
[   11.627097] alg_test_stdrng test drbg_pr_hmac_sha384
[   11.704620] alg_test_stdrng test drbg_pr_hmac_sha1
[   11.750945] alg_test_stdrng test drbg_pr_sha256
[   11.829385] alg_test_stdrng test drbg_pr_sha512
[   11.906740] alg_test_stdrng test drbg_pr_sha384
[   11.984845] alg_test_stdrng test drbg_pr_sha1
[   12.030321] alg_test_stdrng test drbg_pr_ctr_aes256
[   12.107965] alg_test_stdrng test drbg_pr_ctr_aes192
[   12.172472] alg_test_stdrng test drbg_pr_ctr_aes128
[   12.218850] alg_test_stdrng test ansi_cprng
[   15.230417] sun8i-a83t-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[   15.253549] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO driver
[   15.265102] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pb not found, using dummy regulator
[   15.292713] printk: console [ttyS0] disabled
[   15.318528] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 54, base_baud = 1500000) is a U6_16550A
[   15.329196] printk: console [ttyS0] enabled
[   15.329196] printk: console [ttyS0] enabled
[   15.337981] printk: bootconsole [uart0] disabled
[   15.337981] printk: bootconsole [uart0] disabled
[   15.353739] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pg not found, using dummy regulator
[   15.397215] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 55, base_baud = 1500000) is a U6_16550A
[   15.420171] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: supply vcc-pl not found, using dummy regulator
[   15.432016] Registered IR keymap rc-empty
[   15.436862] rc rc0: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0
[   15.444488] input: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0/input0
[   15.456659] sunxi-ir 1f02000.ir: initialized sunXi IR driver
[   15.496947] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pd not found, using dummy regulator
[   15.511818] sunxi-rsb 1f03400.rsb: RSB running at 3000000 Hz
[   15.521011] axp20x-rsb sunxi-rsb-3a3: AXP20x variant AXP813 found
[   15.553157] input: axp20x-pek as /devices/platform/soc/1f03400.rsb/sunxi-rsb-3a3/axp221-pek/input/input1
[   15.591742] vcc-dram: Bringing 1180000uV into 1200000-1200000uV
[   15.632089] vcc-wifi: Bringing 2900000uV into 3300000-3300000uV
[   15.719380] axp20x-adc axp813-adc: DMA mask not set
[   15.731930] axp20x-battery-power-supply axp20x-battery-power-supply: DMA mask not set
[   15.748351] axp20x-ac-power-supply axp20x-ac-power-supply: DMA mask not set
[   15.772317] axp20x-usb-power-supply axp20x-usb-power-supply: DMA mask not set
[   15.789744] axp20x-rsb sunxi-rsb-3a3: AXP20X driver loaded
[   15.813791] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-ph not found, using dummy regulator
[   15.838994] dwmac-sun8i 1c30000.ethernet: IRQ eth_wake_irq not found
[   15.845480] dwmac-sun8i 1c30000.ethernet: IRQ eth_lpi not found
[   15.855879] dwmac-sun8i 1c30000.ethernet: PTP uses main clock
[   15.862064] dwmac-sun8i 1c30000.ethernet: Current syscon value is not the default 1ce6 (expect 0)
[   15.874428] dwmac-sun8i 1c30000.ethernet: No HW DMA feature register supported
[   15.881864] dwmac-sun8i 1c30000.ethernet: RX Checksum Offload Engine supported
[   15.889252] dwmac-sun8i 1c30000.ethernet: COE Type 2
[   15.894287] dwmac-sun8i 1c30000.ethernet: TX Checksum insertion supported
[   15.901212] dwmac-sun8i 1c30000.ethernet: Normal descriptors
[   15.906939] dwmac-sun8i 1c30000.ethernet: Chain mode enabled
[   15.975999] ehci-platform 1c1a000.usb: EHCI Host Controller
[   15.982427] ehci-platform 1c1a000.usb: new USB bus registered, assigned bus number 1
[   15.997426] ehci-platform 1c1a000.usb: irq 48, io mem 0x01c1a000
[   16.028860] ehci-platform 1c1a000.usb: USB 2.0 started, EHCI 1.00
[   16.044389] hub 1-0:1.0: USB hub found
[   16.048913] hub 1-0:1.0: 1 port detected
[   16.063451] usb_phy_generic usb_phy_generic.0.auto: supply vcc not found, using dummy regulator
[   16.080515] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[   16.086669] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
[   16.106365] hub 2-0:1.0: USB hub found
[   16.111270] hub 2-0:1.0: 1 port detected
[   16.193991] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pf not found, using dummy regulator
[   16.196692] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pc not found, using dummy regulator
[   16.270439] sunxi-mmc 1c0f000.mmc: Got CD GPIO
[   16.304500] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[   16.313850] sunxi-mmc 1c11000.mmc: initialized, max. request size: 16384 KB, uses new timings mode
[   16.330874] dwmac-sun8i 1c30000.ethernet eth0: PHY [stmmac-0:01] driver [RTL8211E Gigabit Ethernet] (irq=POLL)
[   16.359236] usb 1-1: new high-speed USB device number 2 using ehci-platform
[   16.375986] dwmac-sun8i 1c30000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[   16.378191] mmc1: host does not support reading read-only switch, assuming write-enable
[   16.383272] mmc2: new DDR MMC card at address 0001
[   16.390143] mmcblk2: mmc2:0001 8WPD3R 7.28 GiB 
[   16.395281] mmc1: new high speed SDHC card at address 59b4
[   16.413063] mmcblk1: mmc1:59b4 SMI   7.50 GiB 
[   16.425756] mmcblk2boot0: mmc2:0001 8WPD3R 4.00 MiB 
[   16.437832]  mmcblk1: p1
[   16.447435] mmcblk2boot1: mmc2:0001 8WPD3R 4.00 MiB 
[   16.462264] dwmac-sun8i 1c30000.ethernet eth0: No Safety Features support found
[   16.469871] dwmac-sun8i 1c30000.ethernet eth0: No MAC Management Counters available
[   16.477704] dwmac-sun8i 1c30000.ethernet eth0: PTP not supported by HW
[   16.496769] dwmac-sun8i 1c30000.ethernet eth0: configuring for phy/rgmii-id link mode
[   16.585365] hub 1-1:1.0: USB hub found
[   16.591452] hub 1-1:1.0: 4 ports detected
[   17.019079] usb 1-1.1: new high-speed USB device number 3 using ehci-platform
[   19.662500] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Half - flow control off
[   19.699027] Sending DHCP requests ..., OK
[   25.684277] IP-Config: Got DHCP answer from 192.168.1.100, my address is 192.168.1.206
[   25.692650] IP-Config: Complete:
[   25.696020]      device=eth0, hwaddr=02:01:2a:37:9f:4d, ipaddr=192.168.1.206, mask=255.255.255.0, gw=192.168.1.1
[   25.706583]      host=192.168.1.206, domain=, nis-domain=(none)
[   25.712760]      bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
[   25.712868]      nameserver0=192.168.1.100
[   25.730678] ALSA device list:
[   25.734085]   No soundcards found.
[   25.773872] Freeing unused kernel image (initmem) memory: 1024K
[   25.850909] Run /init as init process
Starting syslogd: OK
Starting klogd: OK
Running sysctl: OK
Populating /dev using udev: [   27.010526] udevd[229]: starting version 3.2.10
[   27.020221] random: udevd: uninitialized urandom read (16 bytes read)
[   27.028018] random: udevd: uninitialized urandom read (16 bytes read)
[   27.034847] random: udevd: uninitialized urandom read (16 bytes read)
[   27.092031] udevd[230]: starting eudev-3.2.10
[   28.155904] urandom_read: 1 callbacks suppressed
[   28.155986] random: udevd: uninitialized urandom read (16 bytes read)
[   28.265267] random: udevd: uninitialized urandom read (16 bytes read)
[   28.319448] 8<--- cut here ---
[   28.322595] Unable to handle kernel paging request at virtual address 60000013
[   28.329845] [60000013] *pgd=00000000
[   28.333496] Internal error: Oops: 5 [#1] SMP ARM
[   28.338161] Modules linked in:
[   28.341249] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[   28.351003] Hardware name: Allwinner A83t board
[   28.355550] PC is at unwind_frame+0x4c0/0x6a0
[   28.359959] LR is at __start_unwind_idx+0x10/0x32ce8
[   28.364961] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
[   28.371233] sp : f14118b0  ip : c0d636d8  fp : 00000000
[   28.376471] r10: 00000001  r9 : c14f7818  r8 : 60000013
[   28.381706] r7 : f141195c  r6 : 60002000  r5 : 00000002  r4 : 60000013
[   28.388243] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f14118c8
[   28.394784] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   28.402027] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
[   28.407794] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   28.418558] Register r1 information: non-paged memory
[   28.423670] Register r2 information: non-slab/vmalloc memory
[   28.429365] Register r3 information: NULL pointer
[   28.434087] Register r4 information: non-paged memory
[   28.439163] Register r5 information: non-paged memory
[   28.444237] Register r6 information: non-paged memory
[   28.449305] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   28.460049] Register r8 information: non-paged memory
[   28.465189] Register r9 information: non-slab/vmalloc memory
[   28.470916] Register r10 information: non-paged memory
[   28.476142] Register r11 information: NULL pointer
[   28.481031] Register r12 information: non-slab/vmalloc memory
[   28.486864] Process udevd (pid: 252, stack limit = 0x(ptrval))
[   28.492795] Stack: (0xf14118b0 to 0xf1412000)
[   28.497191] 18a0:                                     00000000 c5654ec0 ffffe000 c0c64d48
[   28.505383] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
[   28.513571] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
[   28.521757] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   28.529944] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
[   28.538131] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
[   28.546320] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
[   28.554508] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
[   28.562696] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
[   28.570884] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
[   28.579071] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
[   28.587263] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
[   28.595454] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
[   28.603644] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
[   28.611840] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
[   28.620028] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
[   28.628215] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
[   28.636403] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
[   28.644586] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
[   28.652771] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
[   28.660955] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
[   28.669141] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
[   28.677328] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
[   28.685514] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
[   28.693697] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
[   28.701878] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
[   28.710060] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
[   28.718243] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
[   28.726434] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
[   28.734621] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
[   28.742806] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
[   28.750991] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
[   28.759178] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
[   28.767357] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
[   28.775538] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
[   28.783724] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
[   28.791907] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
[   28.800095] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
[   28.808278] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
[   28.816467] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
[   28.824651] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
[   28.832832] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
[   28.841018] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
[   28.849202] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   28.857385] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   28.865572] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
[   28.873757] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
[   28.881947] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
[   28.890130] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
[   28.898316] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
[   28.906500] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
[   28.914689] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
[   28.922874] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
[   28.931059] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
[   28.939245] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
[   28.947433] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
[   28.955619] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
[   28.963803] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
[   28.971985] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
[   28.980163]  unwind_frame from __save_stack_trace+0x70/0x94
[   28.985767]  __save_stack_trace from stack_trace_save+0x38/0x58
[   28.991703]  stack_trace_save from save_trace+0x50/0x410
[   28.997028]  save_trace from __lock_acquire+0x23c0/0x31b0
[   29.002431]  __lock_acquire from lock_acquire+0x10c/0x3a8
[   29.007837]  lock_acquire from _raw_spin_lock_irqsave+0x50/0x6c
[   29.013768]  _raw_spin_lock_irqsave from unwind_frame+0x388/0x6a0
[   29.019868]  unwind_frame from walk_stackframe+0x30/0x3c
[   29.025188]  walk_stackframe from return_address+0x58/0x15c
[   29.030765]  return_address from trace_hardirqs_off+0x64/0x160
[   29.036607]  trace_hardirqs_off from __irq_svc+0x54/0xac
[   29.041942] 8<--- cut here ---
[   29.044998] Unable to handle kernel paging request at virtual address 60000013
[   29.052214] [60000013] *pgd=00000000
[   29.055810] Internal error: Oops: 5 [#2] SMP ARM
[   29.060432] Modules linked in:
[   29.063496] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[   29.073233] Hardware name: Allwinner A83t board
[   29.077761] PC is at unwind_frame+0x4c0/0x6a0
[   29.082126] LR is at __start_unwind_idx+0x10/0x32ce8
[   29.087102] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
[   29.093365] sp : f1411670  ip : c0d636d8  fp : 00000000
[   29.098587] r10: 00000001  r9 : c5654ec0  r8 : 60000013
[   29.103809] r7 : f1411714  r6 : 60002000  r5 : 00000002  r4 : 60000013
[   29.110332] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f1411688
[   29.116855] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   29.124074] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
[   29.129814] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   29.140518] Register r1 information: non-paged memory
[   29.145574] Register r2 information: non-slab/vmalloc memory
[   29.151235] Register r3 information: NULL pointer
[   29.155940] Register r4 information: non-paged memory
[   29.160993] Register r5 information: non-paged memory
[   29.166044] Register r6 information: non-paged memory
[   29.171098] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   29.181792] Register r8 information: non-paged memory
[   29.186845] Register r9 information: slab task_struct start c5654ec0 pointer offset 0
[   29.194695] Register r10 information: non-paged memory
[   29.199834] Register r11 information: NULL pointer
[   29.204627] Register r12 information: non-slab/vmalloc memory
[   29.210373] Process udevd (pid: 252, stack limit = 0x(ptrval))
[   29.216204] Stack: (0xf1411670 to 0xf1412000)
[   29.220561] 1660:                                     c5654ec0 c5654ec0 ffffe000 c0c64d48
[   29.228734] 1680: 0000002c ffffffff c5654ec0 0000002c ffffffff c0193560 c0f08f78 c0196314
[   29.236908] 16a0: f1411704 f1411c9c 2e174000 c5654ec0 00000000 60000013 f1412000 60000013
[   29.245080] 16c0: c0100af4 00000000 c0101278 c0c64de0 c5654ec0 00000005 f141174c c0196558
[   29.253252] 16e0: f1411704 a29ed944 c5654ec0 c0100af4 c0c643e4 c0100060 c0101278 c0c64de0
[   29.261416] 1700: c5654ec0 00000005 f141174c c010f52c 30203030 60000013 f1411c68 c0100af4
[   29.269589] 1720: c0100af4 f1411c64 f1411c48 a29ed944 c108241c f1411860 c0f0e3b4 c5654ec0
[   29.277762] 1740: 60000193 0000000b c0c642f4 c010b3a4 f1410000 0000000b 00000000 ffffffff
[   29.285935] 1760: c5654ec0 00000000 ffffffff c0193560 c0f08f78 c0196314 f14117dc c5654ec0
[   29.294107] 1780: 60000013 00000300 c0c65d54 c5486940 c5654ec0 c5654ec0 00000005 c5486940
[   29.302279] 17a0: c0c65d54 c5486940 c5654ec0 00000001 00000000 c0196558 f14117dc a29ed944
[   29.310452] 17c0: c5654ec0 60000013 00000005 c5486940 c0c65d54 c5486940 c5654ec0 00000001
[   29.318623] 17e0: 00000000 c0113630 c5654ec0 c0113aa0 f1411860 00000000 00000000 00000000
[   29.326797] 1800: 00000000 00000000 00000000 00000000 00000000 00000005 60000013 f1411860
[   29.334970] 1820: c0f0ee48 60000013 c5654ec0 00000001 00000000 c0113c64 00000000 c02172b8
[   29.343143] 1840: c010f28c 60000193 ffffffff c010f28c 60000193 ffffffff f1411894 c0100a70
[   29.351316] 1860: f14118c8 0000000f c0d96414 00000000 60000013 00000002 60002000 f141195c
[   29.359488] 1880: 60000013 c14f7818 00000001 00000000 c0d636d8 f14118b0 c0d636d8 c010f28c
[   29.367660] 18a0: 60000193 ffffffff 00000051 c010ee2c 00000000 c5654ec0 ffffe000 c0c64d48
[   29.375834] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
[   29.384006] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
[   29.392180] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   29.400352] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
[   29.408525] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
[   29.416699] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
[   29.424871] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
[   29.433043] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
[   29.441215] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
[   29.449388] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
[   29.457560] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
[   29.465733] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
[   29.473905] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
[   29.482077] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
[   29.490250] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
[   29.498422] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
[   29.506594] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
[   29.514767] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
[   29.522940] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
[   29.531112] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
[   29.539285] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
[   29.547457] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
[   29.555630] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
[   29.563802] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
[   29.571975] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
[   29.580148] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
[   29.588320] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
[   29.596492] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
[   29.604664] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
[   29.612837] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
[   29.621009] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
[   29.629181] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
[   29.637354] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
[   29.645518] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
[   29.653690] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
[   29.661863] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
[   29.670036] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
[   29.678207] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
[   29.686381] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
[   29.694553] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
[   29.702725] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
[   29.710898] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
[   29.719070] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   29.727242] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   29.735414] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
[   29.743586] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
[   29.751759] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
[   29.759931] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
[   29.768104] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
[   29.776276] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
[   29.784448] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
[   29.792621] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
[   29.800794] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
[   29.808966] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
[   29.817138] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
[   29.825310] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
[   29.833483] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
[   29.841654] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
[   29.849824]  unwind_frame from unwind_backtrace+0xc0/0x130
[   29.855319]  unwind_backtrace from die+0x270/0x4b8
[   29.860116]  die from die_kernel_fault+0x64/0x74
[   29.864747]  die_kernel_fault from do_bad_area+0x0/0xc8
[   29.869990] Code: e3110001 0afffff9 e35b0000 1a000031 (e594c000) 
[   29.876086] ---[ end trace 0000000000000000 ]---
[   29.880707] note: udevd[252] exited with preempt_count 1#
[   29.896289] udevd[230]: worker [252] terminated by signal 11 (Segmentation fault)
[   29.904008] udevd[230]: worker [252] failed while handling '/devices/platform/soc/1c11000.mmc/mmc_host/mmc2/mmc2:0001/block/mmcblk2'
[   54.338560] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[   54.344576] rcu: 	1-...!: (1 GPs behind) idle=bd1/1/0x40000000 softirq=348/350 fqs=0 
[   54.352430] rcu: 	4-...!: (0 ticks this GP) idle=135/1/0x40000000 softirq=123/123 fqs=0 
[   54.360544] 	(detected by 7, t=2604 jiffies, g=121, q=8900)
[   54.366138] Sending NMI from CPU 7 to CPUs 1:
[   64.371235] Sending NMI from CPU 7 to CPUs 4:
[   74.376326] rcu: rcu_sched kthread timer wakeup didn't happen for 4604 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
[   74.387375] rcu: 	Possible timer handling issue on cpu=4 timer-softirq=29
[   74.394168] rcu: rcu_sched kthread starved for 4607 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=4
[   74.404263] rcu: 	Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[   74.413221] rcu: RCU grace-period kthread stack dump:
[   74.418277] task:rcu_sched       state:I stack:    0 pid:   11 ppid:     2 flags:0x00000000
[   74.426660]  __schedule from schedule+0x54/0xc8
[   74.431230]  schedule from schedule_timeout+0xb0/0x200
[   74.436397]  schedule_timeout from rcu_gp_fqs_loop+0x16c/0x7d4
[   74.442261]  rcu_gp_fqs_loop from rcu_gp_kthread+0x1ac/0x328
[   74.447942]  rcu_gp_kthread from kthread+0xf0/0x110
[   74.452849]  kthread from ret_from_fork+0x14/0x2c
[   74.457580] rcu: Stack dump where RCU GP kthread last ran:
[   74.463068] Sending NMI from CPU 7 to CPUs 4:

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Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> >
> > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > <linux@armlinux.org.uk> wrote:
> > >
> > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > Hello
> > > >
> > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > > [    0.000000] unwind: Index not found c0f0c440
> > > > [    0.000000] unwind: Index not found 00000000
> > > >
> > > > This happen on a sun8i-a83t-bananapi-m3
> > >
> > > Have you enabled vmapped stacks?
> > >
> >
> > This is probably related to
> >
> > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> >
> > which removes a kernel_text_address() check on frame->pc as it is
> > essentially redundant, given that we won't find unwind data otherwise.
> > Unfortunately, I failed to realise that the other check carries a
> > pr_warn(), which may apparently fire spuriously in some cases.
> >
> > The 0x0 value can easily be filtered out, but i would be interesting
> > where the other value originates from. We might be able to solve this
> > with a simple .nounwind directive in a asm routine somewhere.
> >
> > I'll prepare a patch that disregards the 0x0 value - could you check
> > in the mean time what the address 0xcf0c440 coincides with in your
> > build?
> 
> Something like the below should restore the previous behavior, while
> taking the kernel_text_address() check out of the hot path.
> 
> --- a/arch/arm/kernel/unwind.c
> +++ b/arch/arm/kernel/unwind.c
> @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> 
>         idx = unwind_find_idx(frame->pc);
>         if (!idx) {
> -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> +               if (frame->pc && kernel_text_address(frame->pc))
> +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
>                 return -URC_FAILURE;
>         }

Hello

This is a more detailed trace from my follow up after your patch:
[    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
[    0.000000] OF: fdt: Machine model: Banana Pi BPI-M3
[    0.000000] earlycon: uart0 at MMIO32 0x01c28000 (options '')
[    0.000000] printk: bootconsole [uart0] enabled
[    0.000000] Memory policy: Data cache writealloc
[    0.000000] cma: Reserved 16 MiB at 0xbf000000
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x0000000040000000-0x000000006fffffff]
[    0.000000]   HighMem  [mem 0x0000000070000000-0x00000000bfffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
[    0.000000] percpu: Embedded 16 pages/cpu s34740 r8192 d22604 u65536
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 522752
[    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x01c28000 ip=dhcp
[    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
[    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] Memory: 2015596K/2097152K available (9216K kernel code, 1542K rwdata, 3468K rodata, 1024K init, 7190K bss, 65172K reserved, 16384K cma-reserved, 1294336K highmem)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
[    0.000000] trace event string verifier disabled
[    0.000000] Running RCU self tests
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: 	RCU event tracing is enabled.
[    0.000000] rcu: 	RCU lockdep checking is enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] random: get_random_bytes called from start_kernel+0x534/0x6cc with crng_init=0
[    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt).
[    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
[    0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
[    0.008654] Switching to timer-based delay loop, resolution 41ns
[    0.015612] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[    0.026625] Console: colour dummy device 80x30
[    0.031541] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
[    0.039985] ... MAX_LOCKDEP_SUBCLASSES:  8
[    0.044455] ... MAX_LOCK_DEPTH:          48
[    0.049009] ... MAX_LOCKDEP_KEYS:        8192
[    0.053781] ... CLASSHASH_SIZE:          4096
[    0.058518] ... MAX_LOCKDEP_ENTRIES:     32768
[    0.063349] ... MAX_LOCKDEP_CHAINS:      65536
[    0.068214] ... CHAINHASH_SIZE:          32768
[    0.073055]  memory used by lock dependency info: 4061 kB
[    0.078950]  memory used for stack traces: 2112 kB
[    0.084155]  per task-struct memory footprint: 1536 bytes
[    0.090217] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
[    0.101518] pid_max: default: 32768 minimum: 301
[    0.107666] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.115682] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
[    0.127870] CPU: Testing write buffer coherency: ok
[    0.135278] /cpus/cpu@0 missing clock-frequency property
[    0.141378] /cpus/cpu@1 missing clock-frequency property
[    0.147357] /cpus/cpu@2 missing clock-frequency property
[    0.153416] /cpus/cpu@3 missing clock-frequency property
[    0.159451] /cpus/cpu@100 missing clock-frequency property
[    0.165776] /cpus/cpu@101 missing clock-frequency property
[    0.172064] /cpus/cpu@102 missing clock-frequency property
[    0.178450] /cpus/cpu@103 missing clock-frequency property
[    0.184459] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
[    0.196481] Setting up static identity map for 0x40100000 - 0x40100060
[    0.206495] ARM CCI driver probed
[    0.211504] sunxi multi cluster SMP support installed
[    0.218782] rcu: Hierarchical SRCU implementation.
[    0.229101] smp: Bringing up secondary CPUs ...
[    0.239445] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
[    0.239515] 
[    0.239521] 
[    0.239529] =============================
[    0.239533] WARNING: suspicious RCU usage
[    0.239539] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
[    0.239547] -----------------------------
[    0.239550] include/trace/events/lock.h:58 suspicious rcu_dereference_check() usage!
[    0.239559] 
[    0.239559] other info that might help us debug this:
[    0.239559] 
[    0.239563] 
[    0.239563] rcu_scheduler_active = 1, debug_locks = 1
[    0.239570] RCU used illegally from extended quiescent state!
[    0.239574] 1 lock held by swapper/0/0:
[    0.239581]  #0: c0f15b4c ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xc/0x2c
[    0.239652] 
[    0.239652] stack backtrace:
[    0.239659] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[    0.239671] Hardware name: Allwinner A83t board
[    0.239680]  unwind_backtrace from show_stack+0x10/0x14
[    0.239706]  show_stack from init_stack+0x1c54/0x2000
[    0.343924] =============================
[    0.348249] WARNING: suspicious RCU usage
[    0.352574] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
[    0.360463] -----------------------------
[    0.364795] include/trace/events/lock.h:13 suspicious rcu_dereference_check() usage!
[    0.373153] 
[    0.373153] other info that might help us debug this:
[    0.373153] 
[    0.381786] 
[    0.381786] rcu_scheduler_active = 1, debug_locks = 1
[    0.388835] RCU used illegally from extended quiescent state!
[    0.395031] no locks held by swapper/0/0.
[    0.399357] 
[    0.399357] stack backtrace:
[    0.404063] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[    0.414764] Hardware name: Allwinner A83t board
[    0.419654]  unwind_backtrace from show_stack+0x10/0x14
[    0.425310]  show_stack from init_stack+0x1d5c/0x2000
[    0.437285] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
[    0.443866] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
[    0.450159] CPU4: thread -1, cpu 0, socket 1, mpidr 80000100
[    0.456318] CPU5: thread -1, cpu 1, socket 1, mpidr 80000101
[    0.463067] CPU6: thread -1, cpu 2, socket 1, mpidr 80000102
[    0.469085] CPU7: thread -1, cpu 3, socket 1, mpidr 80000103
[    0.470310] smp: Brought up 1 node, 8 CPUs
[    0.511987] SMP: Total of 8 processors activated (384.00 BogoMIPS).
[    0.518815] CPU: All CPU(s) started in SVC mode.
[    0.528747] devtmpfs: initialized
[    0.575460] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
[    0.635349] DMA-API: preallocated 65536 debug entries
[    0.640942] DMA-API: debugging enabled by kernel config
[    0.646798] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[    0.657668] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
[    0.667801] pinctrl core: initialized pinctrl subsystem
[    0.680682] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.707352] DMA: preallocated 256 KiB pool for atomic coherent allocations
[    0.721297] thermal_sys: Registered thermal governor 'step_wise'
[    0.727127] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
[    0.742484] hw-breakpoint: maximum watchpoint size is 8 bytes.
[    0.845166] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
[    0.854770] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
[    0.868363] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
[    0.877968] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
[    0.948337] platform 1ee0000.hdmi: Fixing up cyclic dependency with 1c0d000.lcd-controller
[    0.985080] platform connector: Fixing up cyclic dependency with 1ee0000.hdmi
[    1.055999] SCSI subsystem initialized
[    1.062543] usbcore: registered new interface driver usbfs
[    1.069061] usbcore: registered new interface driver hub
[    1.075249] usbcore: registered new device driver usb
[    1.082481] mc: Linux media interface: v0.10
[    1.087480] videodev: Linux video capture interface: v2.00
[    1.093822] pps_core: LinuxPPS API ver. 1 registered
[    1.099235] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    1.109239] PTP clock support registered
[    1.115805] Advanced Linux Sound Architecture Driver Initialized.
[    1.128823] clocksource: Switched to clocksource arch_sys_counter
[    1.840156] NET: Registered PF_INET protocol family
[    1.846279] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[    1.857520] tcp_listen_portaddr_hash hash table entries: 512 (order: 2, 22528 bytes, linear)
[    1.866898] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
[    1.876120] TCP bind hash table entries: 8192 (order: 6, 327680 bytes, linear)
[    1.885881] TCP: Hash tables configured (established 8192 bind 8192)
[    1.894083] UDP hash table entries: 512 (order: 3, 49152 bytes, linear)
[    1.901714] UDP-Lite hash table entries: 512 (order: 3, 49152 bytes, linear)
[    1.910798] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    1.922517] RPC: Registered named UNIX socket transport module.
[    1.929185] RPC: Registered udp transport module.
[    1.934335] RPC: Registered tcp transport module.
[    1.939594] RPC: Registered tcp NFSv4.1 backchannel transport module.
[    1.950532] Trying to unpack rootfs image as initramfs...
[    1.955690] Initialise system trusted keyrings
[    1.963169] workingset: timestamp_bits=30 max_order=19 bucket_order=0
[    2.019818] NFS: Registering the id_resolver key type
[    2.025553] Key type id_resolver registered
[    2.030337] Key type id_legacy registered
[    2.129933] NET: Registered PF_ALG protocol family
[    2.135490] Key type asymmetric registered
[    2.140166] Asymmetric key parser 'x509' registered
[    2.147479] bounce: pool size: 64 pages
[    2.152643] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
[    2.161050] io scheduler mq-deadline registered
[    2.166023] io scheduler kyber registered
[    2.818294] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
[    2.911286] brd: module loaded
[    2.990798] loop: module loaded
[    3.011369] CAN device driver interface
[    3.022864] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[    3.030150] ehci-platform: EHCI generic platform driver
[    3.037461] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[    3.044379] ohci-platform: OHCI generic platform driver
[    3.063534] i2c_dev: i2c /dev entries driver
[    3.080741] sun8i-rotate 1020000.rotate: Device registered as /dev/video0
[    3.102983] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
[    3.115379] device-mapper: ioctl: 4.46.0-ioctl (2022-02-22) initialised: dm-devel@redhat.com
[    3.140183] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
[    3.150005] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
[    3.159248] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(aes)
[    3.165597] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(aes)
[    3.172073] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(des3_ede)
[    3.178940] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(des3_ede)
[    3.185718] sun8i-ss 1c15000.crypto: Register md5
[    3.190968] sun8i-ss 1c15000.crypto: Register sha1
[    3.196237] sun8i-ss 1c15000.crypto: Register sha224
[    3.201892] sun8i-ss 1c15000.crypto: Register sha256
[    3.207372] sun8i-ss 1c15000.crypto: Register hmac(sha1)
[    3.213967] sun8i-ss 1c15000.crypto: Security System Die ID 7
[    3.226428] usbcore: registered new interface driver usbhid
[    3.232650] usbhid: USB HID core driver
[    3.265675] Initializing XFRM netlink socket
[    3.270845] NET: Registered PF_PACKET protocol family
[    3.276493] can: controller area network core
[    3.281937] NET: Registered PF_CAN protocol family
[    3.287198] can: raw protocol
[    3.290825] can: broadcast manager protocol
[    3.295480] can: netlink gateway - max_hops=1
[    3.301621] Key type dns_resolver registered
[    3.306640] Registering SWP/SWPB emulation handler
[    3.323559] Loading compiled-in X.509 certificates
[    3.338045] alg: extra crypto tests enabled.  This is intended for developer use only.
[    6.454305] Freeing initrd memory: 24268K
[    6.577353] sun8i-ss 1c15000.crypto: Fallback for hmac-sha1-sun8i-ss is hmac(sha1-generic)
[    6.935170] sun8i-ss 1c15000.crypto: Fallback for sha256-sun8i-ss is sha256-generic
[    7.205127] sun8i-ss 1c15000.crypto: Fallback for sha224-sun8i-ss is sha224-generic
[    7.451810] sun8i-ss 1c15000.crypto: Fallback for sha1-sun8i-ss is sha1-generic
[    7.704434] sun8i-ss 1c15000.crypto: Fallback for md5-sun8i-ss is md5-generic
[    7.811076] random: fast init done
[    7.897484] alg_test_stdrng test sun8i-ss-prng
[    7.995818] sun8i-ss 1c15000.crypto: Fallback for ecb-des3-sun8i-ss is ecb(des3_ede-generic)
[    8.751380] sun8i-ss 1c15000.crypto: Fallback for cbc-des3-sun8i-ss is cbc(des3_ede-generic)
[    9.580606] sun8i-ss 1c15000.crypto: Fallback for ecb-aes-sun8i-ss is ecb(aes-generic)
[    9.943526] sun8i-ss 1c15000.crypto: Fallback for cbc-aes-sun8i-ss is cbc(aes-generic)
[   10.307336] alg_test_stdrng test drbg_nopr_hmac_sha512
[   10.553558] alg_test_stdrng test drbg_nopr_hmac_sha256
[   10.749710] alg_test_stdrng test drbg_nopr_hmac_sha384
[   10.994919] alg_test_stdrng test drbg_nopr_hmac_sha1
[   11.027045] alg_test_stdrng test drbg_nopr_sha256
[   11.079874] alg_test_stdrng test drbg_nopr_sha512
[   11.131980] alg_test_stdrng test drbg_nopr_sha384
[   11.182511] alg_test_stdrng test drbg_nopr_sha1
[   11.213096] alg_test_stdrng test drbg_nopr_ctr_aes256
[   11.391601] alg_test_stdrng test drbg_nopr_ctr_aes192
[   11.436864] alg_test_stdrng test drbg_nopr_ctr_aes128
[   11.470634] alg_test_stdrng test drbg_pr_hmac_sha512
[   11.548614] alg_test_stdrng test drbg_pr_hmac_sha256
[   11.627097] alg_test_stdrng test drbg_pr_hmac_sha384
[   11.704620] alg_test_stdrng test drbg_pr_hmac_sha1
[   11.750945] alg_test_stdrng test drbg_pr_sha256
[   11.829385] alg_test_stdrng test drbg_pr_sha512
[   11.906740] alg_test_stdrng test drbg_pr_sha384
[   11.984845] alg_test_stdrng test drbg_pr_sha1
[   12.030321] alg_test_stdrng test drbg_pr_ctr_aes256
[   12.107965] alg_test_stdrng test drbg_pr_ctr_aes192
[   12.172472] alg_test_stdrng test drbg_pr_ctr_aes128
[   12.218850] alg_test_stdrng test ansi_cprng
[   15.230417] sun8i-a83t-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
[   15.253549] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO driver
[   15.265102] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pb not found, using dummy regulator
[   15.292713] printk: console [ttyS0] disabled
[   15.318528] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 54, base_baud = 1500000) is a U6_16550A
[   15.329196] printk: console [ttyS0] enabled
[   15.329196] printk: console [ttyS0] enabled
[   15.337981] printk: bootconsole [uart0] disabled
[   15.337981] printk: bootconsole [uart0] disabled
[   15.353739] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pg not found, using dummy regulator
[   15.397215] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 55, base_baud = 1500000) is a U6_16550A
[   15.420171] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: supply vcc-pl not found, using dummy regulator
[   15.432016] Registered IR keymap rc-empty
[   15.436862] rc rc0: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0
[   15.444488] input: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0/input0
[   15.456659] sunxi-ir 1f02000.ir: initialized sunXi IR driver
[   15.496947] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pd not found, using dummy regulator
[   15.511818] sunxi-rsb 1f03400.rsb: RSB running at 3000000 Hz
[   15.521011] axp20x-rsb sunxi-rsb-3a3: AXP20x variant AXP813 found
[   15.553157] input: axp20x-pek as /devices/platform/soc/1f03400.rsb/sunxi-rsb-3a3/axp221-pek/input/input1
[   15.591742] vcc-dram: Bringing 1180000uV into 1200000-1200000uV
[   15.632089] vcc-wifi: Bringing 2900000uV into 3300000-3300000uV
[   15.719380] axp20x-adc axp813-adc: DMA mask not set
[   15.731930] axp20x-battery-power-supply axp20x-battery-power-supply: DMA mask not set
[   15.748351] axp20x-ac-power-supply axp20x-ac-power-supply: DMA mask not set
[   15.772317] axp20x-usb-power-supply axp20x-usb-power-supply: DMA mask not set
[   15.789744] axp20x-rsb sunxi-rsb-3a3: AXP20X driver loaded
[   15.813791] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-ph not found, using dummy regulator
[   15.838994] dwmac-sun8i 1c30000.ethernet: IRQ eth_wake_irq not found
[   15.845480] dwmac-sun8i 1c30000.ethernet: IRQ eth_lpi not found
[   15.855879] dwmac-sun8i 1c30000.ethernet: PTP uses main clock
[   15.862064] dwmac-sun8i 1c30000.ethernet: Current syscon value is not the default 1ce6 (expect 0)
[   15.874428] dwmac-sun8i 1c30000.ethernet: No HW DMA feature register supported
[   15.881864] dwmac-sun8i 1c30000.ethernet: RX Checksum Offload Engine supported
[   15.889252] dwmac-sun8i 1c30000.ethernet: COE Type 2
[   15.894287] dwmac-sun8i 1c30000.ethernet: TX Checksum insertion supported
[   15.901212] dwmac-sun8i 1c30000.ethernet: Normal descriptors
[   15.906939] dwmac-sun8i 1c30000.ethernet: Chain mode enabled
[   15.975999] ehci-platform 1c1a000.usb: EHCI Host Controller
[   15.982427] ehci-platform 1c1a000.usb: new USB bus registered, assigned bus number 1
[   15.997426] ehci-platform 1c1a000.usb: irq 48, io mem 0x01c1a000
[   16.028860] ehci-platform 1c1a000.usb: USB 2.0 started, EHCI 1.00
[   16.044389] hub 1-0:1.0: USB hub found
[   16.048913] hub 1-0:1.0: 1 port detected
[   16.063451] usb_phy_generic usb_phy_generic.0.auto: supply vcc not found, using dummy regulator
[   16.080515] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
[   16.086669] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
[   16.106365] hub 2-0:1.0: USB hub found
[   16.111270] hub 2-0:1.0: 1 port detected
[   16.193991] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pf not found, using dummy regulator
[   16.196692] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pc not found, using dummy regulator
[   16.270439] sunxi-mmc 1c0f000.mmc: Got CD GPIO
[   16.304500] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
[   16.313850] sunxi-mmc 1c11000.mmc: initialized, max. request size: 16384 KB, uses new timings mode
[   16.330874] dwmac-sun8i 1c30000.ethernet eth0: PHY [stmmac-0:01] driver [RTL8211E Gigabit Ethernet] (irq=POLL)
[   16.359236] usb 1-1: new high-speed USB device number 2 using ehci-platform
[   16.375986] dwmac-sun8i 1c30000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
[   16.378191] mmc1: host does not support reading read-only switch, assuming write-enable
[   16.383272] mmc2: new DDR MMC card at address 0001
[   16.390143] mmcblk2: mmc2:0001 8WPD3R 7.28 GiB 
[   16.395281] mmc1: new high speed SDHC card at address 59b4
[   16.413063] mmcblk1: mmc1:59b4 SMI   7.50 GiB 
[   16.425756] mmcblk2boot0: mmc2:0001 8WPD3R 4.00 MiB 
[   16.437832]  mmcblk1: p1
[   16.447435] mmcblk2boot1: mmc2:0001 8WPD3R 4.00 MiB 
[   16.462264] dwmac-sun8i 1c30000.ethernet eth0: No Safety Features support found
[   16.469871] dwmac-sun8i 1c30000.ethernet eth0: No MAC Management Counters available
[   16.477704] dwmac-sun8i 1c30000.ethernet eth0: PTP not supported by HW
[   16.496769] dwmac-sun8i 1c30000.ethernet eth0: configuring for phy/rgmii-id link mode
[   16.585365] hub 1-1:1.0: USB hub found
[   16.591452] hub 1-1:1.0: 4 ports detected
[   17.019079] usb 1-1.1: new high-speed USB device number 3 using ehci-platform
[   19.662500] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Half - flow control off
[   19.699027] Sending DHCP requests ..., OK
[   25.684277] IP-Config: Got DHCP answer from 192.168.1.100, my address is 192.168.1.206
[   25.692650] IP-Config: Complete:
[   25.696020]      device=eth0, hwaddr=02:01:2a:37:9f:4d, ipaddr=192.168.1.206, mask=255.255.255.0, gw=192.168.1.1
[   25.706583]      host=192.168.1.206, domain=, nis-domain=(none)
[   25.712760]      bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
[   25.712868]      nameserver0=192.168.1.100
[   25.730678] ALSA device list:
[   25.734085]   No soundcards found.
[   25.773872] Freeing unused kernel image (initmem) memory: 1024K
[   25.850909] Run /init as init process
Starting syslogd: OK
Starting klogd: OK
Running sysctl: OK
Populating /dev using udev: [   27.010526] udevd[229]: starting version 3.2.10
[   27.020221] random: udevd: uninitialized urandom read (16 bytes read)
[   27.028018] random: udevd: uninitialized urandom read (16 bytes read)
[   27.034847] random: udevd: uninitialized urandom read (16 bytes read)
[   27.092031] udevd[230]: starting eudev-3.2.10
[   28.155904] urandom_read: 1 callbacks suppressed
[   28.155986] random: udevd: uninitialized urandom read (16 bytes read)
[   28.265267] random: udevd: uninitialized urandom read (16 bytes read)
[   28.319448] 8<--- cut here ---
[   28.322595] Unable to handle kernel paging request at virtual address 60000013
[   28.329845] [60000013] *pgd=00000000
[   28.333496] Internal error: Oops: 5 [#1] SMP ARM
[   28.338161] Modules linked in:
[   28.341249] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[   28.351003] Hardware name: Allwinner A83t board
[   28.355550] PC is at unwind_frame+0x4c0/0x6a0
[   28.359959] LR is at __start_unwind_idx+0x10/0x32ce8
[   28.364961] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
[   28.371233] sp : f14118b0  ip : c0d636d8  fp : 00000000
[   28.376471] r10: 00000001  r9 : c14f7818  r8 : 60000013
[   28.381706] r7 : f141195c  r6 : 60002000  r5 : 00000002  r4 : 60000013
[   28.388243] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f14118c8
[   28.394784] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   28.402027] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
[   28.407794] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   28.418558] Register r1 information: non-paged memory
[   28.423670] Register r2 information: non-slab/vmalloc memory
[   28.429365] Register r3 information: NULL pointer
[   28.434087] Register r4 information: non-paged memory
[   28.439163] Register r5 information: non-paged memory
[   28.444237] Register r6 information: non-paged memory
[   28.449305] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   28.460049] Register r8 information: non-paged memory
[   28.465189] Register r9 information: non-slab/vmalloc memory
[   28.470916] Register r10 information: non-paged memory
[   28.476142] Register r11 information: NULL pointer
[   28.481031] Register r12 information: non-slab/vmalloc memory
[   28.486864] Process udevd (pid: 252, stack limit = 0x(ptrval))
[   28.492795] Stack: (0xf14118b0 to 0xf1412000)
[   28.497191] 18a0:                                     00000000 c5654ec0 ffffe000 c0c64d48
[   28.505383] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
[   28.513571] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
[   28.521757] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   28.529944] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
[   28.538131] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
[   28.546320] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
[   28.554508] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
[   28.562696] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
[   28.570884] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
[   28.579071] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
[   28.587263] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
[   28.595454] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
[   28.603644] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
[   28.611840] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
[   28.620028] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
[   28.628215] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
[   28.636403] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
[   28.644586] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
[   28.652771] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
[   28.660955] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
[   28.669141] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
[   28.677328] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
[   28.685514] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
[   28.693697] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
[   28.701878] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
[   28.710060] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
[   28.718243] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
[   28.726434] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
[   28.734621] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
[   28.742806] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
[   28.750991] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
[   28.759178] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
[   28.767357] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
[   28.775538] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
[   28.783724] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
[   28.791907] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
[   28.800095] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
[   28.808278] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
[   28.816467] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
[   28.824651] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
[   28.832832] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
[   28.841018] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
[   28.849202] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   28.857385] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   28.865572] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
[   28.873757] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
[   28.881947] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
[   28.890130] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
[   28.898316] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
[   28.906500] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
[   28.914689] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
[   28.922874] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
[   28.931059] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
[   28.939245] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
[   28.947433] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
[   28.955619] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
[   28.963803] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
[   28.971985] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
[   28.980163]  unwind_frame from __save_stack_trace+0x70/0x94
[   28.985767]  __save_stack_trace from stack_trace_save+0x38/0x58
[   28.991703]  stack_trace_save from save_trace+0x50/0x410
[   28.997028]  save_trace from __lock_acquire+0x23c0/0x31b0
[   29.002431]  __lock_acquire from lock_acquire+0x10c/0x3a8
[   29.007837]  lock_acquire from _raw_spin_lock_irqsave+0x50/0x6c
[   29.013768]  _raw_spin_lock_irqsave from unwind_frame+0x388/0x6a0
[   29.019868]  unwind_frame from walk_stackframe+0x30/0x3c
[   29.025188]  walk_stackframe from return_address+0x58/0x15c
[   29.030765]  return_address from trace_hardirqs_off+0x64/0x160
[   29.036607]  trace_hardirqs_off from __irq_svc+0x54/0xac
[   29.041942] 8<--- cut here ---
[   29.044998] Unable to handle kernel paging request at virtual address 60000013
[   29.052214] [60000013] *pgd=00000000
[   29.055810] Internal error: Oops: 5 [#2] SMP ARM
[   29.060432] Modules linked in:
[   29.063496] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
[   29.073233] Hardware name: Allwinner A83t board
[   29.077761] PC is at unwind_frame+0x4c0/0x6a0
[   29.082126] LR is at __start_unwind_idx+0x10/0x32ce8
[   29.087102] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
[   29.093365] sp : f1411670  ip : c0d636d8  fp : 00000000
[   29.098587] r10: 00000001  r9 : c5654ec0  r8 : 60000013
[   29.103809] r7 : f1411714  r6 : 60002000  r5 : 00000002  r4 : 60000013
[   29.110332] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f1411688
[   29.116855] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
[   29.124074] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
[   29.129814] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   29.140518] Register r1 information: non-paged memory
[   29.145574] Register r2 information: non-slab/vmalloc memory
[   29.151235] Register r3 information: NULL pointer
[   29.155940] Register r4 information: non-paged memory
[   29.160993] Register r5 information: non-paged memory
[   29.166044] Register r6 information: non-paged memory
[   29.171098] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
[   29.181792] Register r8 information: non-paged memory
[   29.186845] Register r9 information: slab task_struct start c5654ec0 pointer offset 0
[   29.194695] Register r10 information: non-paged memory
[   29.199834] Register r11 information: NULL pointer
[   29.204627] Register r12 information: non-slab/vmalloc memory
[   29.210373] Process udevd (pid: 252, stack limit = 0x(ptrval))
[   29.216204] Stack: (0xf1411670 to 0xf1412000)
[   29.220561] 1660:                                     c5654ec0 c5654ec0 ffffe000 c0c64d48
[   29.228734] 1680: 0000002c ffffffff c5654ec0 0000002c ffffffff c0193560 c0f08f78 c0196314
[   29.236908] 16a0: f1411704 f1411c9c 2e174000 c5654ec0 00000000 60000013 f1412000 60000013
[   29.245080] 16c0: c0100af4 00000000 c0101278 c0c64de0 c5654ec0 00000005 f141174c c0196558
[   29.253252] 16e0: f1411704 a29ed944 c5654ec0 c0100af4 c0c643e4 c0100060 c0101278 c0c64de0
[   29.261416] 1700: c5654ec0 00000005 f141174c c010f52c 30203030 60000013 f1411c68 c0100af4
[   29.269589] 1720: c0100af4 f1411c64 f1411c48 a29ed944 c108241c f1411860 c0f0e3b4 c5654ec0
[   29.277762] 1740: 60000193 0000000b c0c642f4 c010b3a4 f1410000 0000000b 00000000 ffffffff
[   29.285935] 1760: c5654ec0 00000000 ffffffff c0193560 c0f08f78 c0196314 f14117dc c5654ec0
[   29.294107] 1780: 60000013 00000300 c0c65d54 c5486940 c5654ec0 c5654ec0 00000005 c5486940
[   29.302279] 17a0: c0c65d54 c5486940 c5654ec0 00000001 00000000 c0196558 f14117dc a29ed944
[   29.310452] 17c0: c5654ec0 60000013 00000005 c5486940 c0c65d54 c5486940 c5654ec0 00000001
[   29.318623] 17e0: 00000000 c0113630 c5654ec0 c0113aa0 f1411860 00000000 00000000 00000000
[   29.326797] 1800: 00000000 00000000 00000000 00000000 00000000 00000005 60000013 f1411860
[   29.334970] 1820: c0f0ee48 60000013 c5654ec0 00000001 00000000 c0113c64 00000000 c02172b8
[   29.343143] 1840: c010f28c 60000193 ffffffff c010f28c 60000193 ffffffff f1411894 c0100a70
[   29.351316] 1860: f14118c8 0000000f c0d96414 00000000 60000013 00000002 60002000 f141195c
[   29.359488] 1880: 60000013 c14f7818 00000001 00000000 c0d636d8 f14118b0 c0d636d8 c010f28c
[   29.367660] 18a0: 60000193 ffffffff 00000051 c010ee2c 00000000 c5654ec0 ffffe000 c0c64d48
[   29.375834] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
[   29.384006] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
[   29.392180] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   29.400352] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
[   29.408525] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
[   29.416699] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
[   29.424871] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
[   29.433043] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
[   29.441215] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
[   29.449388] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
[   29.457560] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
[   29.465733] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
[   29.473905] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
[   29.482077] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
[   29.490250] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
[   29.498422] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
[   29.506594] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
[   29.514767] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
[   29.522940] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
[   29.531112] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
[   29.539285] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
[   29.547457] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
[   29.555630] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
[   29.563802] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
[   29.571975] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
[   29.580148] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
[   29.588320] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
[   29.596492] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
[   29.604664] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
[   29.612837] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
[   29.621009] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
[   29.629181] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
[   29.637354] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
[   29.645518] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
[   29.653690] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
[   29.661863] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
[   29.670036] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
[   29.678207] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
[   29.686381] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
[   29.694553] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
[   29.702725] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
[   29.710898] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
[   29.719070] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   29.727242] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
[   29.735414] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
[   29.743586] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
[   29.751759] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
[   29.759931] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
[   29.768104] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
[   29.776276] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
[   29.784448] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
[   29.792621] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
[   29.800794] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
[   29.808966] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
[   29.817138] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
[   29.825310] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
[   29.833483] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
[   29.841654] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
[   29.849824]  unwind_frame from unwind_backtrace+0xc0/0x130
[   29.855319]  unwind_backtrace from die+0x270/0x4b8
[   29.860116]  die from die_kernel_fault+0x64/0x74
[   29.864747]  die_kernel_fault from do_bad_area+0x0/0xc8
[   29.869990] Code: e3110001 0afffff9 e35b0000 1a000031 (e594c000) 
[   29.876086] ---[ end trace 0000000000000000 ]---
[   29.880707] note: udevd[252] exited with preempt_count 1#
[   29.896289] udevd[230]: worker [252] terminated by signal 11 (Segmentation fault)
[   29.904008] udevd[230]: worker [252] failed while handling '/devices/platform/soc/1c11000.mmc/mmc_host/mmc2/mmc2:0001/block/mmcblk2'
[   54.338560] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
[   54.344576] rcu: 	1-...!: (1 GPs behind) idle=bd1/1/0x40000000 softirq=348/350 fqs=0 
[   54.352430] rcu: 	4-...!: (0 ticks this GP) idle=135/1/0x40000000 softirq=123/123 fqs=0 
[   54.360544] 	(detected by 7, t=2604 jiffies, g=121, q=8900)
[   54.366138] Sending NMI from CPU 7 to CPUs 1:
[   64.371235] Sending NMI from CPU 7 to CPUs 4:
[   74.376326] rcu: rcu_sched kthread timer wakeup didn't happen for 4604 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
[   74.387375] rcu: 	Possible timer handling issue on cpu=4 timer-softirq=29
[   74.394168] rcu: rcu_sched kthread starved for 4607 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=4
[   74.404263] rcu: 	Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
[   74.413221] rcu: RCU grace-period kthread stack dump:
[   74.418277] task:rcu_sched       state:I stack:    0 pid:   11 ppid:     2 flags:0x00000000
[   74.426660]  __schedule from schedule+0x54/0xc8
[   74.431230]  schedule from schedule_timeout+0xb0/0x200
[   74.436397]  schedule_timeout from rcu_gp_fqs_loop+0x16c/0x7d4
[   74.442261]  rcu_gp_fqs_loop from rcu_gp_kthread+0x1ac/0x328
[   74.447942]  rcu_gp_kthread from kthread+0xf0/0x110
[   74.452849]  kthread from ret_from_fork+0x14/0x2c
[   74.457580] rcu: Stack dump where RCU GP kthread last ran:
[   74.463068] Sending NMI from CPU 7 to CPUs 4:

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
>
> Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > >
> > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > <linux@armlinux.org.uk> wrote:
> > > >
> > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > Hello
> > > > >
> > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > [    0.000000] unwind: Index not found 00000000
> > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > [    0.000000] unwind: Index not found 00000000
> > > > >
> > > > > This happen on a sun8i-a83t-bananapi-m3
> > > >
> > > > Have you enabled vmapped stacks?
> > > >
> > >
> > > This is probably related to
> > >
> > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > >
> > > which removes a kernel_text_address() check on frame->pc as it is
> > > essentially redundant, given that we won't find unwind data otherwise.
> > > Unfortunately, I failed to realise that the other check carries a
> > > pr_warn(), which may apparently fire spuriously in some cases.
> > >
> > > The 0x0 value can easily be filtered out, but i would be interesting
> > > where the other value originates from. We might be able to solve this
> > > with a simple .nounwind directive in a asm routine somewhere.
> > >
> > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > in the mean time what the address 0xcf0c440 coincides with in your
> > > build?
> >
> > Something like the below should restore the previous behavior, while
> > taking the kernel_text_address() check out of the hot path.
> >
> > --- a/arch/arm/kernel/unwind.c
> > +++ b/arch/arm/kernel/unwind.c
> > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> >
> >         idx = unwind_find_idx(frame->pc);
> >         if (!idx) {
> > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > +               if (frame->pc && kernel_text_address(frame->pc))
> > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> >                 return -URC_FAILURE;
> >         }
>
> Hello
>
> This is a more detailed trace from my follow up after your patch:

So the log below is from a kernel that has the above patch applied?
Could you please share the .config?


> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [    0.000000] OF: fdt: Machine model: Banana Pi BPI-M3
> [    0.000000] earlycon: uart0 at MMIO32 0x01c28000 (options '')
> [    0.000000] printk: bootconsole [uart0] enabled
> [    0.000000] Memory policy: Data cache writealloc
> [    0.000000] cma: Reserved 16 MiB at 0xbf000000
> [    0.000000] Zone ranges:
> [    0.000000]   Normal   [mem 0x0000000040000000-0x000000006fffffff]
> [    0.000000]   HighMem  [mem 0x0000000070000000-0x00000000bfffffff]
> [    0.000000] Movable zone start for each node
> [    0.000000] Early memory node ranges
> [    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
> [    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
> [    0.000000] percpu: Embedded 16 pages/cpu s34740 r8192 d22604 u65536
> [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 522752
> [    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x01c28000 ip=dhcp
> [    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
> [    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
> [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
> [    0.000000] Memory: 2015596K/2097152K available (9216K kernel code, 1542K rwdata, 3468K rodata, 1024K init, 7190K bss, 65172K reserved, 16384K cma-reserved, 1294336K highmem)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
> [    0.000000] trace event string verifier disabled
> [    0.000000] Running RCU self tests
> [    0.000000] rcu: Hierarchical RCU implementation.
> [    0.000000] rcu:     RCU event tracing is enabled.
> [    0.000000] rcu:     RCU lockdep checking is enabled.
> [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
> [    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> [    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
> [    0.000000] random: get_random_bytes called from start_kernel+0x534/0x6cc with crng_init=0
> [    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt).
> [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
> [    0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
> [    0.008654] Switching to timer-based delay loop, resolution 41ns
> [    0.015612] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
> [    0.026625] Console: colour dummy device 80x30
> [    0.031541] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
> [    0.039985] ... MAX_LOCKDEP_SUBCLASSES:  8
> [    0.044455] ... MAX_LOCK_DEPTH:          48
> [    0.049009] ... MAX_LOCKDEP_KEYS:        8192
> [    0.053781] ... CLASSHASH_SIZE:          4096
> [    0.058518] ... MAX_LOCKDEP_ENTRIES:     32768
> [    0.063349] ... MAX_LOCKDEP_CHAINS:      65536
> [    0.068214] ... CHAINHASH_SIZE:          32768
> [    0.073055]  memory used by lock dependency info: 4061 kB
> [    0.078950]  memory used for stack traces: 2112 kB
> [    0.084155]  per task-struct memory footprint: 1536 bytes
> [    0.090217] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
> [    0.101518] pid_max: default: 32768 minimum: 301
> [    0.107666] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
> [    0.115682] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
> [    0.127870] CPU: Testing write buffer coherency: ok
> [    0.135278] /cpus/cpu@0 missing clock-frequency property
> [    0.141378] /cpus/cpu@1 missing clock-frequency property
> [    0.147357] /cpus/cpu@2 missing clock-frequency property
> [    0.153416] /cpus/cpu@3 missing clock-frequency property
> [    0.159451] /cpus/cpu@100 missing clock-frequency property
> [    0.165776] /cpus/cpu@101 missing clock-frequency property
> [    0.172064] /cpus/cpu@102 missing clock-frequency property
> [    0.178450] /cpus/cpu@103 missing clock-frequency property
> [    0.184459] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> [    0.196481] Setting up static identity map for 0x40100000 - 0x40100060
> [    0.206495] ARM CCI driver probed
> [    0.211504] sunxi multi cluster SMP support installed
> [    0.218782] rcu: Hierarchical SRCU implementation.
> [    0.229101] smp: Bringing up secondary CPUs ...
> [    0.239445] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
> [    0.239515]
> [    0.239521]
> [    0.239529] =============================
> [    0.239533] WARNING: suspicious RCU usage
> [    0.239539] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
> [    0.239547] -----------------------------
> [    0.239550] include/trace/events/lock.h:58 suspicious rcu_dereference_check() usage!
> [    0.239559]
> [    0.239559] other info that might help us debug this:
> [    0.239559]
> [    0.239563]
> [    0.239563] rcu_scheduler_active = 1, debug_locks = 1
> [    0.239570] RCU used illegally from extended quiescent state!
> [    0.239574] 1 lock held by swapper/0/0:
> [    0.239581]  #0: c0f15b4c ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xc/0x2c
> [    0.239652]
> [    0.239652] stack backtrace:
> [    0.239659] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [    0.239671] Hardware name: Allwinner A83t board
> [    0.239680]  unwind_backtrace from show_stack+0x10/0x14
> [    0.239706]  show_stack from init_stack+0x1c54/0x2000
> [    0.343924] =============================
> [    0.348249] WARNING: suspicious RCU usage
> [    0.352574] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
> [    0.360463] -----------------------------
> [    0.364795] include/trace/events/lock.h:13 suspicious rcu_dereference_check() usage!
> [    0.373153]
> [    0.373153] other info that might help us debug this:
> [    0.373153]
> [    0.381786]
> [    0.381786] rcu_scheduler_active = 1, debug_locks = 1
> [    0.388835] RCU used illegally from extended quiescent state!
> [    0.395031] no locks held by swapper/0/0.
> [    0.399357]
> [    0.399357] stack backtrace:
> [    0.404063] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [    0.414764] Hardware name: Allwinner A83t board
> [    0.419654]  unwind_backtrace from show_stack+0x10/0x14
> [    0.425310]  show_stack from init_stack+0x1d5c/0x2000
> [    0.437285] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
> [    0.443866] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
> [    0.450159] CPU4: thread -1, cpu 0, socket 1, mpidr 80000100
> [    0.456318] CPU5: thread -1, cpu 1, socket 1, mpidr 80000101
> [    0.463067] CPU6: thread -1, cpu 2, socket 1, mpidr 80000102
> [    0.469085] CPU7: thread -1, cpu 3, socket 1, mpidr 80000103
> [    0.470310] smp: Brought up 1 node, 8 CPUs
> [    0.511987] SMP: Total of 8 processors activated (384.00 BogoMIPS).
> [    0.518815] CPU: All CPU(s) started in SVC mode.
> [    0.528747] devtmpfs: initialized
> [    0.575460] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
> [    0.635349] DMA-API: preallocated 65536 debug entries
> [    0.640942] DMA-API: debugging enabled by kernel config
> [    0.646798] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> [    0.657668] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
> [    0.667801] pinctrl core: initialized pinctrl subsystem
> [    0.680682] NET: Registered PF_NETLINK/PF_ROUTE protocol family
> [    0.707352] DMA: preallocated 256 KiB pool for atomic coherent allocations
> [    0.721297] thermal_sys: Registered thermal governor 'step_wise'
> [    0.727127] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
> [    0.742484] hw-breakpoint: maximum watchpoint size is 8 bytes.
> [    0.845166] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
> [    0.854770] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
> [    0.868363] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
> [    0.877968] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
> [    0.948337] platform 1ee0000.hdmi: Fixing up cyclic dependency with 1c0d000.lcd-controller
> [    0.985080] platform connector: Fixing up cyclic dependency with 1ee0000.hdmi
> [    1.055999] SCSI subsystem initialized
> [    1.062543] usbcore: registered new interface driver usbfs
> [    1.069061] usbcore: registered new interface driver hub
> [    1.075249] usbcore: registered new device driver usb
> [    1.082481] mc: Linux media interface: v0.10
> [    1.087480] videodev: Linux video capture interface: v2.00
> [    1.093822] pps_core: LinuxPPS API ver. 1 registered
> [    1.099235] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> [    1.109239] PTP clock support registered
> [    1.115805] Advanced Linux Sound Architecture Driver Initialized.
> [    1.128823] clocksource: Switched to clocksource arch_sys_counter
> [    1.840156] NET: Registered PF_INET protocol family
> [    1.846279] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
> [    1.857520] tcp_listen_portaddr_hash hash table entries: 512 (order: 2, 22528 bytes, linear)
> [    1.866898] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
> [    1.876120] TCP bind hash table entries: 8192 (order: 6, 327680 bytes, linear)
> [    1.885881] TCP: Hash tables configured (established 8192 bind 8192)
> [    1.894083] UDP hash table entries: 512 (order: 3, 49152 bytes, linear)
> [    1.901714] UDP-Lite hash table entries: 512 (order: 3, 49152 bytes, linear)
> [    1.910798] NET: Registered PF_UNIX/PF_LOCAL protocol family
> [    1.922517] RPC: Registered named UNIX socket transport module.
> [    1.929185] RPC: Registered udp transport module.
> [    1.934335] RPC: Registered tcp transport module.
> [    1.939594] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [    1.950532] Trying to unpack rootfs image as initramfs...
> [    1.955690] Initialise system trusted keyrings
> [    1.963169] workingset: timestamp_bits=30 max_order=19 bucket_order=0
> [    2.019818] NFS: Registering the id_resolver key type
> [    2.025553] Key type id_resolver registered
> [    2.030337] Key type id_legacy registered
> [    2.129933] NET: Registered PF_ALG protocol family
> [    2.135490] Key type asymmetric registered
> [    2.140166] Asymmetric key parser 'x509' registered
> [    2.147479] bounce: pool size: 64 pages
> [    2.152643] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
> [    2.161050] io scheduler mq-deadline registered
> [    2.166023] io scheduler kyber registered
> [    2.818294] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
> [    2.911286] brd: module loaded
> [    2.990798] loop: module loaded
> [    3.011369] CAN device driver interface
> [    3.022864] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    3.030150] ehci-platform: EHCI generic platform driver
> [    3.037461] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    3.044379] ohci-platform: OHCI generic platform driver
> [    3.063534] i2c_dev: i2c /dev entries driver
> [    3.080741] sun8i-rotate 1020000.rotate: Device registered as /dev/video0
> [    3.102983] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
> [    3.115379] device-mapper: ioctl: 4.46.0-ioctl (2022-02-22) initialised: dm-devel@redhat.com
> [    3.140183] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
> [    3.150005] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
> [    3.159248] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(aes)
> [    3.165597] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(aes)
> [    3.172073] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(des3_ede)
> [    3.178940] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(des3_ede)
> [    3.185718] sun8i-ss 1c15000.crypto: Register md5
> [    3.190968] sun8i-ss 1c15000.crypto: Register sha1
> [    3.196237] sun8i-ss 1c15000.crypto: Register sha224
> [    3.201892] sun8i-ss 1c15000.crypto: Register sha256
> [    3.207372] sun8i-ss 1c15000.crypto: Register hmac(sha1)
> [    3.213967] sun8i-ss 1c15000.crypto: Security System Die ID 7
> [    3.226428] usbcore: registered new interface driver usbhid
> [    3.232650] usbhid: USB HID core driver
> [    3.265675] Initializing XFRM netlink socket
> [    3.270845] NET: Registered PF_PACKET protocol family
> [    3.276493] can: controller area network core
> [    3.281937] NET: Registered PF_CAN protocol family
> [    3.287198] can: raw protocol
> [    3.290825] can: broadcast manager protocol
> [    3.295480] can: netlink gateway - max_hops=1
> [    3.301621] Key type dns_resolver registered
> [    3.306640] Registering SWP/SWPB emulation handler
> [    3.323559] Loading compiled-in X.509 certificates
> [    3.338045] alg: extra crypto tests enabled.  This is intended for developer use only.
> [    6.454305] Freeing initrd memory: 24268K
> [    6.577353] sun8i-ss 1c15000.crypto: Fallback for hmac-sha1-sun8i-ss is hmac(sha1-generic)
> [    6.935170] sun8i-ss 1c15000.crypto: Fallback for sha256-sun8i-ss is sha256-generic
> [    7.205127] sun8i-ss 1c15000.crypto: Fallback for sha224-sun8i-ss is sha224-generic
> [    7.451810] sun8i-ss 1c15000.crypto: Fallback for sha1-sun8i-ss is sha1-generic
> [    7.704434] sun8i-ss 1c15000.crypto: Fallback for md5-sun8i-ss is md5-generic
> [    7.811076] random: fast init done
> [    7.897484] alg_test_stdrng test sun8i-ss-prng
> [    7.995818] sun8i-ss 1c15000.crypto: Fallback for ecb-des3-sun8i-ss is ecb(des3_ede-generic)
> [    8.751380] sun8i-ss 1c15000.crypto: Fallback for cbc-des3-sun8i-ss is cbc(des3_ede-generic)
> [    9.580606] sun8i-ss 1c15000.crypto: Fallback for ecb-aes-sun8i-ss is ecb(aes-generic)
> [    9.943526] sun8i-ss 1c15000.crypto: Fallback for cbc-aes-sun8i-ss is cbc(aes-generic)
> [   10.307336] alg_test_stdrng test drbg_nopr_hmac_sha512
> [   10.553558] alg_test_stdrng test drbg_nopr_hmac_sha256
> [   10.749710] alg_test_stdrng test drbg_nopr_hmac_sha384
> [   10.994919] alg_test_stdrng test drbg_nopr_hmac_sha1
> [   11.027045] alg_test_stdrng test drbg_nopr_sha256
> [   11.079874] alg_test_stdrng test drbg_nopr_sha512
> [   11.131980] alg_test_stdrng test drbg_nopr_sha384
> [   11.182511] alg_test_stdrng test drbg_nopr_sha1
> [   11.213096] alg_test_stdrng test drbg_nopr_ctr_aes256
> [   11.391601] alg_test_stdrng test drbg_nopr_ctr_aes192
> [   11.436864] alg_test_stdrng test drbg_nopr_ctr_aes128
> [   11.470634] alg_test_stdrng test drbg_pr_hmac_sha512
> [   11.548614] alg_test_stdrng test drbg_pr_hmac_sha256
> [   11.627097] alg_test_stdrng test drbg_pr_hmac_sha384
> [   11.704620] alg_test_stdrng test drbg_pr_hmac_sha1
> [   11.750945] alg_test_stdrng test drbg_pr_sha256
> [   11.829385] alg_test_stdrng test drbg_pr_sha512
> [   11.906740] alg_test_stdrng test drbg_pr_sha384
> [   11.984845] alg_test_stdrng test drbg_pr_sha1
> [   12.030321] alg_test_stdrng test drbg_pr_ctr_aes256
> [   12.107965] alg_test_stdrng test drbg_pr_ctr_aes192
> [   12.172472] alg_test_stdrng test drbg_pr_ctr_aes128
> [   12.218850] alg_test_stdrng test ansi_cprng
> [   15.230417] sun8i-a83t-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
> [   15.253549] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO driver
> [   15.265102] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pb not found, using dummy regulator
> [   15.292713] printk: console [ttyS0] disabled
> [   15.318528] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 54, base_baud = 1500000) is a U6_16550A
> [   15.329196] printk: console [ttyS0] enabled
> [   15.329196] printk: console [ttyS0] enabled
> [   15.337981] printk: bootconsole [uart0] disabled
> [   15.337981] printk: bootconsole [uart0] disabled
> [   15.353739] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pg not found, using dummy regulator
> [   15.397215] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 55, base_baud = 1500000) is a U6_16550A
> [   15.420171] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: supply vcc-pl not found, using dummy regulator
> [   15.432016] Registered IR keymap rc-empty
> [   15.436862] rc rc0: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0
> [   15.444488] input: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0/input0
> [   15.456659] sunxi-ir 1f02000.ir: initialized sunXi IR driver
> [   15.496947] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pd not found, using dummy regulator
> [   15.511818] sunxi-rsb 1f03400.rsb: RSB running at 3000000 Hz
> [   15.521011] axp20x-rsb sunxi-rsb-3a3: AXP20x variant AXP813 found
> [   15.553157] input: axp20x-pek as /devices/platform/soc/1f03400.rsb/sunxi-rsb-3a3/axp221-pek/input/input1
> [   15.591742] vcc-dram: Bringing 1180000uV into 1200000-1200000uV
> [   15.632089] vcc-wifi: Bringing 2900000uV into 3300000-3300000uV
> [   15.719380] axp20x-adc axp813-adc: DMA mask not set
> [   15.731930] axp20x-battery-power-supply axp20x-battery-power-supply: DMA mask not set
> [   15.748351] axp20x-ac-power-supply axp20x-ac-power-supply: DMA mask not set
> [   15.772317] axp20x-usb-power-supply axp20x-usb-power-supply: DMA mask not set
> [   15.789744] axp20x-rsb sunxi-rsb-3a3: AXP20X driver loaded
> [   15.813791] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-ph not found, using dummy regulator
> [   15.838994] dwmac-sun8i 1c30000.ethernet: IRQ eth_wake_irq not found
> [   15.845480] dwmac-sun8i 1c30000.ethernet: IRQ eth_lpi not found
> [   15.855879] dwmac-sun8i 1c30000.ethernet: PTP uses main clock
> [   15.862064] dwmac-sun8i 1c30000.ethernet: Current syscon value is not the default 1ce6 (expect 0)
> [   15.874428] dwmac-sun8i 1c30000.ethernet: No HW DMA feature register supported
> [   15.881864] dwmac-sun8i 1c30000.ethernet: RX Checksum Offload Engine supported
> [   15.889252] dwmac-sun8i 1c30000.ethernet: COE Type 2
> [   15.894287] dwmac-sun8i 1c30000.ethernet: TX Checksum insertion supported
> [   15.901212] dwmac-sun8i 1c30000.ethernet: Normal descriptors
> [   15.906939] dwmac-sun8i 1c30000.ethernet: Chain mode enabled
> [   15.975999] ehci-platform 1c1a000.usb: EHCI Host Controller
> [   15.982427] ehci-platform 1c1a000.usb: new USB bus registered, assigned bus number 1
> [   15.997426] ehci-platform 1c1a000.usb: irq 48, io mem 0x01c1a000
> [   16.028860] ehci-platform 1c1a000.usb: USB 2.0 started, EHCI 1.00
> [   16.044389] hub 1-0:1.0: USB hub found
> [   16.048913] hub 1-0:1.0: 1 port detected
> [   16.063451] usb_phy_generic usb_phy_generic.0.auto: supply vcc not found, using dummy regulator
> [   16.080515] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
> [   16.086669] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
> [   16.106365] hub 2-0:1.0: USB hub found
> [   16.111270] hub 2-0:1.0: 1 port detected
> [   16.193991] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pf not found, using dummy regulator
> [   16.196692] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pc not found, using dummy regulator
> [   16.270439] sunxi-mmc 1c0f000.mmc: Got CD GPIO
> [   16.304500] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
> [   16.313850] sunxi-mmc 1c11000.mmc: initialized, max. request size: 16384 KB, uses new timings mode
> [   16.330874] dwmac-sun8i 1c30000.ethernet eth0: PHY [stmmac-0:01] driver [RTL8211E Gigabit Ethernet] (irq=POLL)
> [   16.359236] usb 1-1: new high-speed USB device number 2 using ehci-platform
> [   16.375986] dwmac-sun8i 1c30000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
> [   16.378191] mmc1: host does not support reading read-only switch, assuming write-enable
> [   16.383272] mmc2: new DDR MMC card at address 0001
> [   16.390143] mmcblk2: mmc2:0001 8WPD3R 7.28 GiB
> [   16.395281] mmc1: new high speed SDHC card at address 59b4
> [   16.413063] mmcblk1: mmc1:59b4 SMI   7.50 GiB
> [   16.425756] mmcblk2boot0: mmc2:0001 8WPD3R 4.00 MiB
> [   16.437832]  mmcblk1: p1
> [   16.447435] mmcblk2boot1: mmc2:0001 8WPD3R 4.00 MiB
> [   16.462264] dwmac-sun8i 1c30000.ethernet eth0: No Safety Features support found
> [   16.469871] dwmac-sun8i 1c30000.ethernet eth0: No MAC Management Counters available
> [   16.477704] dwmac-sun8i 1c30000.ethernet eth0: PTP not supported by HW
> [   16.496769] dwmac-sun8i 1c30000.ethernet eth0: configuring for phy/rgmii-id link mode
> [   16.585365] hub 1-1:1.0: USB hub found
> [   16.591452] hub 1-1:1.0: 4 ports detected
> [   17.019079] usb 1-1.1: new high-speed USB device number 3 using ehci-platform
> [   19.662500] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Half - flow control off
> [   19.699027] Sending DHCP requests ..., OK
> [   25.684277] IP-Config: Got DHCP answer from 192.168.1.100, my address is 192.168.1.206
> [   25.692650] IP-Config: Complete:
> [   25.696020]      device=eth0, hwaddr=02:01:2a:37:9f:4d, ipaddr=192.168.1.206, mask=255.255.255.0, gw=192.168.1.1
> [   25.706583]      host=192.168.1.206, domain=, nis-domain=(none)
> [   25.712760]      bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
> [   25.712868]      nameserver0=192.168.1.100
> [   25.730678] ALSA device list:
> [   25.734085]   No soundcards found.
> [   25.773872] Freeing unused kernel image (initmem) memory: 1024K
> [   25.850909] Run /init as init process
> Starting syslogd: OK
> Starting klogd: OK
> Running sysctl: OK
> Populating /dev using udev: [   27.010526] udevd[229]: starting version 3.2.10
> [   27.020221] random: udevd: uninitialized urandom read (16 bytes read)
> [   27.028018] random: udevd: uninitialized urandom read (16 bytes read)
> [   27.034847] random: udevd: uninitialized urandom read (16 bytes read)
> [   27.092031] udevd[230]: starting eudev-3.2.10
> [   28.155904] urandom_read: 1 callbacks suppressed
> [   28.155986] random: udevd: uninitialized urandom read (16 bytes read)
> [   28.265267] random: udevd: uninitialized urandom read (16 bytes read)
> [   28.319448] 8<--- cut here ---
> [   28.322595] Unable to handle kernel paging request at virtual address 60000013
> [   28.329845] [60000013] *pgd=00000000
> [   28.333496] Internal error: Oops: 5 [#1] SMP ARM
> [   28.338161] Modules linked in:
> [   28.341249] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [   28.351003] Hardware name: Allwinner A83t board
> [   28.355550] PC is at unwind_frame+0x4c0/0x6a0
> [   28.359959] LR is at __start_unwind_idx+0x10/0x32ce8
> [   28.364961] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
> [   28.371233] sp : f14118b0  ip : c0d636d8  fp : 00000000
> [   28.376471] r10: 00000001  r9 : c14f7818  r8 : 60000013
> [   28.381706] r7 : f141195c  r6 : 60002000  r5 : 00000002  r4 : 60000013
> [   28.388243] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f14118c8
> [   28.394784] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
> [   28.402027] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
> [   28.407794] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   28.418558] Register r1 information: non-paged memory
> [   28.423670] Register r2 information: non-slab/vmalloc memory
> [   28.429365] Register r3 information: NULL pointer
> [   28.434087] Register r4 information: non-paged memory
> [   28.439163] Register r5 information: non-paged memory
> [   28.444237] Register r6 information: non-paged memory
> [   28.449305] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   28.460049] Register r8 information: non-paged memory
> [   28.465189] Register r9 information: non-slab/vmalloc memory
> [   28.470916] Register r10 information: non-paged memory
> [   28.476142] Register r11 information: NULL pointer
> [   28.481031] Register r12 information: non-slab/vmalloc memory
> [   28.486864] Process udevd (pid: 252, stack limit = 0x(ptrval))
> [   28.492795] Stack: (0xf14118b0 to 0xf1412000)
> [   28.497191] 18a0:                                     00000000 c5654ec0 ffffe000 c0c64d48
> [   28.505383] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
> [   28.513571] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
> [   28.521757] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   28.529944] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
> [   28.538131] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
> [   28.546320] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
> [   28.554508] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
> [   28.562696] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
> [   28.570884] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
> [   28.579071] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
> [   28.587263] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
> [   28.595454] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
> [   28.603644] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
> [   28.611840] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
> [   28.620028] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
> [   28.628215] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
> [   28.636403] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
> [   28.644586] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
> [   28.652771] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
> [   28.660955] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
> [   28.669141] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
> [   28.677328] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
> [   28.685514] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
> [   28.693697] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
> [   28.701878] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
> [   28.710060] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
> [   28.718243] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
> [   28.726434] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
> [   28.734621] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
> [   28.742806] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
> [   28.750991] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
> [   28.759178] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
> [   28.767357] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
> [   28.775538] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
> [   28.783724] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
> [   28.791907] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
> [   28.800095] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
> [   28.808278] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
> [   28.816467] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
> [   28.824651] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
> [   28.832832] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
> [   28.841018] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
> [   28.849202] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   28.857385] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   28.865572] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
> [   28.873757] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
> [   28.881947] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
> [   28.890130] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
> [   28.898316] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
> [   28.906500] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
> [   28.914689] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
> [   28.922874] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
> [   28.931059] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
> [   28.939245] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
> [   28.947433] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
> [   28.955619] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
> [   28.963803] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
> [   28.971985] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
> [   28.980163]  unwind_frame from __save_stack_trace+0x70/0x94
> [   28.985767]  __save_stack_trace from stack_trace_save+0x38/0x58
> [   28.991703]  stack_trace_save from save_trace+0x50/0x410
> [   28.997028]  save_trace from __lock_acquire+0x23c0/0x31b0
> [   29.002431]  __lock_acquire from lock_acquire+0x10c/0x3a8
> [   29.007837]  lock_acquire from _raw_spin_lock_irqsave+0x50/0x6c
> [   29.013768]  _raw_spin_lock_irqsave from unwind_frame+0x388/0x6a0
> [   29.019868]  unwind_frame from walk_stackframe+0x30/0x3c
> [   29.025188]  walk_stackframe from return_address+0x58/0x15c
> [   29.030765]  return_address from trace_hardirqs_off+0x64/0x160
> [   29.036607]  trace_hardirqs_off from __irq_svc+0x54/0xac
> [   29.041942] 8<--- cut here ---
> [   29.044998] Unable to handle kernel paging request at virtual address 60000013
> [   29.052214] [60000013] *pgd=00000000
> [   29.055810] Internal error: Oops: 5 [#2] SMP ARM
> [   29.060432] Modules linked in:
> [   29.063496] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [   29.073233] Hardware name: Allwinner A83t board
> [   29.077761] PC is at unwind_frame+0x4c0/0x6a0
> [   29.082126] LR is at __start_unwind_idx+0x10/0x32ce8
> [   29.087102] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
> [   29.093365] sp : f1411670  ip : c0d636d8  fp : 00000000
> [   29.098587] r10: 00000001  r9 : c5654ec0  r8 : 60000013
> [   29.103809] r7 : f1411714  r6 : 60002000  r5 : 00000002  r4 : 60000013
> [   29.110332] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f1411688
> [   29.116855] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
> [   29.124074] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
> [   29.129814] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   29.140518] Register r1 information: non-paged memory
> [   29.145574] Register r2 information: non-slab/vmalloc memory
> [   29.151235] Register r3 information: NULL pointer
> [   29.155940] Register r4 information: non-paged memory
> [   29.160993] Register r5 information: non-paged memory
> [   29.166044] Register r6 information: non-paged memory
> [   29.171098] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   29.181792] Register r8 information: non-paged memory
> [   29.186845] Register r9 information: slab task_struct start c5654ec0 pointer offset 0
> [   29.194695] Register r10 information: non-paged memory
> [   29.199834] Register r11 information: NULL pointer
> [   29.204627] Register r12 information: non-slab/vmalloc memory
> [   29.210373] Process udevd (pid: 252, stack limit = 0x(ptrval))
> [   29.216204] Stack: (0xf1411670 to 0xf1412000)
> [   29.220561] 1660:                                     c5654ec0 c5654ec0 ffffe000 c0c64d48
> [   29.228734] 1680: 0000002c ffffffff c5654ec0 0000002c ffffffff c0193560 c0f08f78 c0196314
> [   29.236908] 16a0: f1411704 f1411c9c 2e174000 c5654ec0 00000000 60000013 f1412000 60000013
> [   29.245080] 16c0: c0100af4 00000000 c0101278 c0c64de0 c5654ec0 00000005 f141174c c0196558
> [   29.253252] 16e0: f1411704 a29ed944 c5654ec0 c0100af4 c0c643e4 c0100060 c0101278 c0c64de0
> [   29.261416] 1700: c5654ec0 00000005 f141174c c010f52c 30203030 60000013 f1411c68 c0100af4
> [   29.269589] 1720: c0100af4 f1411c64 f1411c48 a29ed944 c108241c f1411860 c0f0e3b4 c5654ec0
> [   29.277762] 1740: 60000193 0000000b c0c642f4 c010b3a4 f1410000 0000000b 00000000 ffffffff
> [   29.285935] 1760: c5654ec0 00000000 ffffffff c0193560 c0f08f78 c0196314 f14117dc c5654ec0
> [   29.294107] 1780: 60000013 00000300 c0c65d54 c5486940 c5654ec0 c5654ec0 00000005 c5486940
> [   29.302279] 17a0: c0c65d54 c5486940 c5654ec0 00000001 00000000 c0196558 f14117dc a29ed944
> [   29.310452] 17c0: c5654ec0 60000013 00000005 c5486940 c0c65d54 c5486940 c5654ec0 00000001
> [   29.318623] 17e0: 00000000 c0113630 c5654ec0 c0113aa0 f1411860 00000000 00000000 00000000
> [   29.326797] 1800: 00000000 00000000 00000000 00000000 00000000 00000005 60000013 f1411860
> [   29.334970] 1820: c0f0ee48 60000013 c5654ec0 00000001 00000000 c0113c64 00000000 c02172b8
> [   29.343143] 1840: c010f28c 60000193 ffffffff c010f28c 60000193 ffffffff f1411894 c0100a70
> [   29.351316] 1860: f14118c8 0000000f c0d96414 00000000 60000013 00000002 60002000 f141195c
> [   29.359488] 1880: 60000013 c14f7818 00000001 00000000 c0d636d8 f14118b0 c0d636d8 c010f28c
> [   29.367660] 18a0: 60000193 ffffffff 00000051 c010ee2c 00000000 c5654ec0 ffffe000 c0c64d48
> [   29.375834] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
> [   29.384006] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
> [   29.392180] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   29.400352] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
> [   29.408525] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
> [   29.416699] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
> [   29.424871] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
> [   29.433043] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
> [   29.441215] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
> [   29.449388] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
> [   29.457560] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
> [   29.465733] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
> [   29.473905] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
> [   29.482077] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
> [   29.490250] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
> [   29.498422] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
> [   29.506594] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
> [   29.514767] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
> [   29.522940] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
> [   29.531112] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
> [   29.539285] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
> [   29.547457] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
> [   29.555630] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
> [   29.563802] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
> [   29.571975] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
> [   29.580148] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
> [   29.588320] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
> [   29.596492] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
> [   29.604664] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
> [   29.612837] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
> [   29.621009] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
> [   29.629181] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
> [   29.637354] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
> [   29.645518] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
> [   29.653690] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
> [   29.661863] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
> [   29.670036] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
> [   29.678207] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
> [   29.686381] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
> [   29.694553] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
> [   29.702725] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
> [   29.710898] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
> [   29.719070] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   29.727242] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   29.735414] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
> [   29.743586] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
> [   29.751759] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
> [   29.759931] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
> [   29.768104] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
> [   29.776276] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
> [   29.784448] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
> [   29.792621] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
> [   29.800794] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
> [   29.808966] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
> [   29.817138] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
> [   29.825310] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
> [   29.833483] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
> [   29.841654] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
> [   29.849824]  unwind_frame from unwind_backtrace+0xc0/0x130
> [   29.855319]  unwind_backtrace from die+0x270/0x4b8
> [   29.860116]  die from die_kernel_fault+0x64/0x74
> [   29.864747]  die_kernel_fault from do_bad_area+0x0/0xc8
> [   29.869990] Code: e3110001 0afffff9 e35b0000 1a000031 (e594c000)
> [   29.876086] ---[ end trace 0000000000000000 ]---
> [   29.880707] note: udevd[252] exited with preempt_count 1#
> [   29.896289] udevd[230]: worker [252] terminated by signal 11 (Segmentation fault)
> [   29.904008] udevd[230]: worker [252] failed while handling '/devices/platform/soc/1c11000.mmc/mmc_host/mmc2/mmc2:0001/block/mmcblk2'
> [   54.338560] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
> [   54.344576] rcu:     1-...!: (1 GPs behind) idle=bd1/1/0x40000000 softirq=348/350 fqs=0
> [   54.352430] rcu:     4-...!: (0 ticks this GP) idle=135/1/0x40000000 softirq=123/123 fqs=0
> [   54.360544]  (detected by 7, t=2604 jiffies, g=121, q=8900)
> [   54.366138] Sending NMI from CPU 7 to CPUs 1:
> [   64.371235] Sending NMI from CPU 7 to CPUs 4:
> [   74.376326] rcu: rcu_sched kthread timer wakeup didn't happen for 4604 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
> [   74.387375] rcu:     Possible timer handling issue on cpu=4 timer-softirq=29
> [   74.394168] rcu: rcu_sched kthread starved for 4607 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=4
> [   74.404263] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
> [   74.413221] rcu: RCU grace-period kthread stack dump:
> [   74.418277] task:rcu_sched       state:I stack:    0 pid:   11 ppid:     2 flags:0x00000000
> [   74.426660]  __schedule from schedule+0x54/0xc8
> [   74.431230]  schedule from schedule_timeout+0xb0/0x200
> [   74.436397]  schedule_timeout from rcu_gp_fqs_loop+0x16c/0x7d4
> [   74.442261]  rcu_gp_fqs_loop from rcu_gp_kthread+0x1ac/0x328
> [   74.447942]  rcu_gp_kthread from kthread+0xf0/0x110
> [   74.452849]  kthread from ret_from_fork+0x14/0x2c
> [   74.457580] rcu: Stack dump where RCU GP kthread last ran:
> [   74.463068] Sending NMI from CPU 7 to CPUs 4:

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Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
>
> Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > >
> > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > <linux@armlinux.org.uk> wrote:
> > > >
> > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > Hello
> > > > >
> > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > [    0.000000] unwind: Index not found 00000000
> > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > [    0.000000] unwind: Index not found 00000000
> > > > >
> > > > > This happen on a sun8i-a83t-bananapi-m3
> > > >
> > > > Have you enabled vmapped stacks?
> > > >
> > >
> > > This is probably related to
> > >
> > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > >
> > > which removes a kernel_text_address() check on frame->pc as it is
> > > essentially redundant, given that we won't find unwind data otherwise.
> > > Unfortunately, I failed to realise that the other check carries a
> > > pr_warn(), which may apparently fire spuriously in some cases.
> > >
> > > The 0x0 value can easily be filtered out, but i would be interesting
> > > where the other value originates from. We might be able to solve this
> > > with a simple .nounwind directive in a asm routine somewhere.
> > >
> > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > in the mean time what the address 0xcf0c440 coincides with in your
> > > build?
> >
> > Something like the below should restore the previous behavior, while
> > taking the kernel_text_address() check out of the hot path.
> >
> > --- a/arch/arm/kernel/unwind.c
> > +++ b/arch/arm/kernel/unwind.c
> > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> >
> >         idx = unwind_find_idx(frame->pc);
> >         if (!idx) {
> > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > +               if (frame->pc && kernel_text_address(frame->pc))
> > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> >                 return -URC_FAILURE;
> >         }
>
> Hello
>
> This is a more detailed trace from my follow up after your patch:

So the log below is from a kernel that has the above patch applied?
Could you please share the .config?


> [    0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
> [    0.000000] OF: fdt: Machine model: Banana Pi BPI-M3
> [    0.000000] earlycon: uart0 at MMIO32 0x01c28000 (options '')
> [    0.000000] printk: bootconsole [uart0] enabled
> [    0.000000] Memory policy: Data cache writealloc
> [    0.000000] cma: Reserved 16 MiB at 0xbf000000
> [    0.000000] Zone ranges:
> [    0.000000]   Normal   [mem 0x0000000040000000-0x000000006fffffff]
> [    0.000000]   HighMem  [mem 0x0000000070000000-0x00000000bfffffff]
> [    0.000000] Movable zone start for each node
> [    0.000000] Early memory node ranges
> [    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff]
> [    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff]
> [    0.000000] percpu: Embedded 16 pages/cpu s34740 r8192 d22604 u65536
> [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 522752
> [    0.000000] Kernel command line: console=ttyS0,115200n8 root=/dev/ram0 earlycon=uart,mmio32,0x01c28000 ip=dhcp
> [    0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes, linear)
> [    0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes, linear)
> [    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
> [    0.000000] Memory: 2015596K/2097152K available (9216K kernel code, 1542K rwdata, 3468K rodata, 1024K init, 7190K bss, 65172K reserved, 16384K cma-reserved, 1294336K highmem)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
> [    0.000000] trace event string verifier disabled
> [    0.000000] Running RCU self tests
> [    0.000000] rcu: Hierarchical RCU implementation.
> [    0.000000] rcu:     RCU event tracing is enabled.
> [    0.000000] rcu:     RCU lockdep checking is enabled.
> [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
> [    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> [    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
> [    0.000000] random: get_random_bytes called from start_kernel+0x534/0x6cc with crng_init=0
> [    0.000000] arch_timer: cp15 timer(s) running at 24.00MHz (virt).
> [    0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x588fe9dc0, max_idle_ns: 440795202592 ns
> [    0.000003] sched_clock: 56 bits at 24MHz, resolution 41ns, wraps every 4398046511097ns
> [    0.008654] Switching to timer-based delay loop, resolution 41ns
> [    0.015612] clocksource: timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
> [    0.026625] Console: colour dummy device 80x30
> [    0.031541] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
> [    0.039985] ... MAX_LOCKDEP_SUBCLASSES:  8
> [    0.044455] ... MAX_LOCK_DEPTH:          48
> [    0.049009] ... MAX_LOCKDEP_KEYS:        8192
> [    0.053781] ... CLASSHASH_SIZE:          4096
> [    0.058518] ... MAX_LOCKDEP_ENTRIES:     32768
> [    0.063349] ... MAX_LOCKDEP_CHAINS:      65536
> [    0.068214] ... CHAINHASH_SIZE:          32768
> [    0.073055]  memory used by lock dependency info: 4061 kB
> [    0.078950]  memory used for stack traces: 2112 kB
> [    0.084155]  per task-struct memory footprint: 1536 bytes
> [    0.090217] Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=240000)
> [    0.101518] pid_max: default: 32768 minimum: 301
> [    0.107666] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
> [    0.115682] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes, linear)
> [    0.127870] CPU: Testing write buffer coherency: ok
> [    0.135278] /cpus/cpu@0 missing clock-frequency property
> [    0.141378] /cpus/cpu@1 missing clock-frequency property
> [    0.147357] /cpus/cpu@2 missing clock-frequency property
> [    0.153416] /cpus/cpu@3 missing clock-frequency property
> [    0.159451] /cpus/cpu@100 missing clock-frequency property
> [    0.165776] /cpus/cpu@101 missing clock-frequency property
> [    0.172064] /cpus/cpu@102 missing clock-frequency property
> [    0.178450] /cpus/cpu@103 missing clock-frequency property
> [    0.184459] CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
> [    0.196481] Setting up static identity map for 0x40100000 - 0x40100060
> [    0.206495] ARM CCI driver probed
> [    0.211504] sunxi multi cluster SMP support installed
> [    0.218782] rcu: Hierarchical SRCU implementation.
> [    0.229101] smp: Bringing up secondary CPUs ...
> [    0.239445] CPU1: thread -1, cpu 1, socket 0, mpidr 80000001
> [    0.239515]
> [    0.239521]
> [    0.239529] =============================
> [    0.239533] WARNING: suspicious RCU usage
> [    0.239539] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
> [    0.239547] -----------------------------
> [    0.239550] include/trace/events/lock.h:58 suspicious rcu_dereference_check() usage!
> [    0.239559]
> [    0.239559] other info that might help us debug this:
> [    0.239559]
> [    0.239563]
> [    0.239563] rcu_scheduler_active = 1, debug_locks = 1
> [    0.239570] RCU used illegally from extended quiescent state!
> [    0.239574] 1 lock held by swapper/0/0:
> [    0.239581]  #0: c0f15b4c ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xc/0x2c
> [    0.239652]
> [    0.239652] stack backtrace:
> [    0.239659] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [    0.239671] Hardware name: Allwinner A83t board
> [    0.239680]  unwind_backtrace from show_stack+0x10/0x14
> [    0.239706]  show_stack from init_stack+0x1c54/0x2000
> [    0.343924] =============================
> [    0.348249] WARNING: suspicious RCU usage
> [    0.352574] 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198 Not tainted
> [    0.360463] -----------------------------
> [    0.364795] include/trace/events/lock.h:13 suspicious rcu_dereference_check() usage!
> [    0.373153]
> [    0.373153] other info that might help us debug this:
> [    0.373153]
> [    0.381786]
> [    0.381786] rcu_scheduler_active = 1, debug_locks = 1
> [    0.388835] RCU used illegally from extended quiescent state!
> [    0.395031] no locks held by swapper/0/0.
> [    0.399357]
> [    0.399357] stack backtrace:
> [    0.404063] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [    0.414764] Hardware name: Allwinner A83t board
> [    0.419654]  unwind_backtrace from show_stack+0x10/0x14
> [    0.425310]  show_stack from init_stack+0x1d5c/0x2000
> [    0.437285] CPU2: thread -1, cpu 2, socket 0, mpidr 80000002
> [    0.443866] CPU3: thread -1, cpu 3, socket 0, mpidr 80000003
> [    0.450159] CPU4: thread -1, cpu 0, socket 1, mpidr 80000100
> [    0.456318] CPU5: thread -1, cpu 1, socket 1, mpidr 80000101
> [    0.463067] CPU6: thread -1, cpu 2, socket 1, mpidr 80000102
> [    0.469085] CPU7: thread -1, cpu 3, socket 1, mpidr 80000103
> [    0.470310] smp: Brought up 1 node, 8 CPUs
> [    0.511987] SMP: Total of 8 processors activated (384.00 BogoMIPS).
> [    0.518815] CPU: All CPU(s) started in SVC mode.
> [    0.528747] devtmpfs: initialized
> [    0.575460] VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
> [    0.635349] DMA-API: preallocated 65536 debug entries
> [    0.640942] DMA-API: debugging enabled by kernel config
> [    0.646798] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
> [    0.657668] futex hash table entries: 2048 (order: 5, 131072 bytes, linear)
> [    0.667801] pinctrl core: initialized pinctrl subsystem
> [    0.680682] NET: Registered PF_NETLINK/PF_ROUTE protocol family
> [    0.707352] DMA: preallocated 256 KiB pool for atomic coherent allocations
> [    0.721297] thermal_sys: Registered thermal governor 'step_wise'
> [    0.727127] hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
> [    0.742484] hw-breakpoint: maximum watchpoint size is 8 bytes.
> [    0.845166] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
> [    0.854770] platform 1c0c000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
> [    0.868363] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1200000.mixer
> [    0.877968] platform 1c0d000.lcd-controller: Fixing up cyclic dependency with 1100000.mixer
> [    0.948337] platform 1ee0000.hdmi: Fixing up cyclic dependency with 1c0d000.lcd-controller
> [    0.985080] platform connector: Fixing up cyclic dependency with 1ee0000.hdmi
> [    1.055999] SCSI subsystem initialized
> [    1.062543] usbcore: registered new interface driver usbfs
> [    1.069061] usbcore: registered new interface driver hub
> [    1.075249] usbcore: registered new device driver usb
> [    1.082481] mc: Linux media interface: v0.10
> [    1.087480] videodev: Linux video capture interface: v2.00
> [    1.093822] pps_core: LinuxPPS API ver. 1 registered
> [    1.099235] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
> [    1.109239] PTP clock support registered
> [    1.115805] Advanced Linux Sound Architecture Driver Initialized.
> [    1.128823] clocksource: Switched to clocksource arch_sys_counter
> [    1.840156] NET: Registered PF_INET protocol family
> [    1.846279] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
> [    1.857520] tcp_listen_portaddr_hash hash table entries: 512 (order: 2, 22528 bytes, linear)
> [    1.866898] TCP established hash table entries: 8192 (order: 3, 32768 bytes, linear)
> [    1.876120] TCP bind hash table entries: 8192 (order: 6, 327680 bytes, linear)
> [    1.885881] TCP: Hash tables configured (established 8192 bind 8192)
> [    1.894083] UDP hash table entries: 512 (order: 3, 49152 bytes, linear)
> [    1.901714] UDP-Lite hash table entries: 512 (order: 3, 49152 bytes, linear)
> [    1.910798] NET: Registered PF_UNIX/PF_LOCAL protocol family
> [    1.922517] RPC: Registered named UNIX socket transport module.
> [    1.929185] RPC: Registered udp transport module.
> [    1.934335] RPC: Registered tcp transport module.
> [    1.939594] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [    1.950532] Trying to unpack rootfs image as initramfs...
> [    1.955690] Initialise system trusted keyrings
> [    1.963169] workingset: timestamp_bits=30 max_order=19 bucket_order=0
> [    2.019818] NFS: Registering the id_resolver key type
> [    2.025553] Key type id_resolver registered
> [    2.030337] Key type id_legacy registered
> [    2.129933] NET: Registered PF_ALG protocol family
> [    2.135490] Key type asymmetric registered
> [    2.140166] Asymmetric key parser 'x509' registered
> [    2.147479] bounce: pool size: 64 pages
> [    2.152643] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 247)
> [    2.161050] io scheduler mq-deadline registered
> [    2.166023] io scheduler kyber registered
> [    2.818294] Serial: 8250/16550 driver, 8 ports, IRQ sharing disabled
> [    2.911286] brd: module loaded
> [    2.990798] loop: module loaded
> [    3.011369] CAN device driver interface
> [    3.022864] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
> [    3.030150] ehci-platform: EHCI generic platform driver
> [    3.037461] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
> [    3.044379] ohci-platform: OHCI generic platform driver
> [    3.063534] i2c_dev: i2c /dev entries driver
> [    3.080741] sun8i-rotate 1020000.rotate: Device registered as /dev/video0
> [    3.102983] sunxi-wdt 1c20ca0.watchdog: Watchdog enabled (timeout=16 sec, nowayout=0)
> [    3.115379] device-mapper: ioctl: 4.46.0-ioctl (2022-02-22) initialised: dm-devel@redhat.com
> [    3.140183] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
> [    3.150005] sun8i-ss 1c15000.crypto: will run requests pump with realtime priority
> [    3.159248] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(aes)
> [    3.165597] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(aes)
> [    3.172073] sun8i-ss 1c15000.crypto: DEBUG: Register cbc(des3_ede)
> [    3.178940] sun8i-ss 1c15000.crypto: DEBUG: Register ecb(des3_ede)
> [    3.185718] sun8i-ss 1c15000.crypto: Register md5
> [    3.190968] sun8i-ss 1c15000.crypto: Register sha1
> [    3.196237] sun8i-ss 1c15000.crypto: Register sha224
> [    3.201892] sun8i-ss 1c15000.crypto: Register sha256
> [    3.207372] sun8i-ss 1c15000.crypto: Register hmac(sha1)
> [    3.213967] sun8i-ss 1c15000.crypto: Security System Die ID 7
> [    3.226428] usbcore: registered new interface driver usbhid
> [    3.232650] usbhid: USB HID core driver
> [    3.265675] Initializing XFRM netlink socket
> [    3.270845] NET: Registered PF_PACKET protocol family
> [    3.276493] can: controller area network core
> [    3.281937] NET: Registered PF_CAN protocol family
> [    3.287198] can: raw protocol
> [    3.290825] can: broadcast manager protocol
> [    3.295480] can: netlink gateway - max_hops=1
> [    3.301621] Key type dns_resolver registered
> [    3.306640] Registering SWP/SWPB emulation handler
> [    3.323559] Loading compiled-in X.509 certificates
> [    3.338045] alg: extra crypto tests enabled.  This is intended for developer use only.
> [    6.454305] Freeing initrd memory: 24268K
> [    6.577353] sun8i-ss 1c15000.crypto: Fallback for hmac-sha1-sun8i-ss is hmac(sha1-generic)
> [    6.935170] sun8i-ss 1c15000.crypto: Fallback for sha256-sun8i-ss is sha256-generic
> [    7.205127] sun8i-ss 1c15000.crypto: Fallback for sha224-sun8i-ss is sha224-generic
> [    7.451810] sun8i-ss 1c15000.crypto: Fallback for sha1-sun8i-ss is sha1-generic
> [    7.704434] sun8i-ss 1c15000.crypto: Fallback for md5-sun8i-ss is md5-generic
> [    7.811076] random: fast init done
> [    7.897484] alg_test_stdrng test sun8i-ss-prng
> [    7.995818] sun8i-ss 1c15000.crypto: Fallback for ecb-des3-sun8i-ss is ecb(des3_ede-generic)
> [    8.751380] sun8i-ss 1c15000.crypto: Fallback for cbc-des3-sun8i-ss is cbc(des3_ede-generic)
> [    9.580606] sun8i-ss 1c15000.crypto: Fallback for ecb-aes-sun8i-ss is ecb(aes-generic)
> [    9.943526] sun8i-ss 1c15000.crypto: Fallback for cbc-aes-sun8i-ss is cbc(aes-generic)
> [   10.307336] alg_test_stdrng test drbg_nopr_hmac_sha512
> [   10.553558] alg_test_stdrng test drbg_nopr_hmac_sha256
> [   10.749710] alg_test_stdrng test drbg_nopr_hmac_sha384
> [   10.994919] alg_test_stdrng test drbg_nopr_hmac_sha1
> [   11.027045] alg_test_stdrng test drbg_nopr_sha256
> [   11.079874] alg_test_stdrng test drbg_nopr_sha512
> [   11.131980] alg_test_stdrng test drbg_nopr_sha384
> [   11.182511] alg_test_stdrng test drbg_nopr_sha1
> [   11.213096] alg_test_stdrng test drbg_nopr_ctr_aes256
> [   11.391601] alg_test_stdrng test drbg_nopr_ctr_aes192
> [   11.436864] alg_test_stdrng test drbg_nopr_ctr_aes128
> [   11.470634] alg_test_stdrng test drbg_pr_hmac_sha512
> [   11.548614] alg_test_stdrng test drbg_pr_hmac_sha256
> [   11.627097] alg_test_stdrng test drbg_pr_hmac_sha384
> [   11.704620] alg_test_stdrng test drbg_pr_hmac_sha1
> [   11.750945] alg_test_stdrng test drbg_pr_sha256
> [   11.829385] alg_test_stdrng test drbg_pr_sha512
> [   11.906740] alg_test_stdrng test drbg_pr_sha384
> [   11.984845] alg_test_stdrng test drbg_pr_sha1
> [   12.030321] alg_test_stdrng test drbg_pr_ctr_aes256
> [   12.107965] alg_test_stdrng test drbg_pr_ctr_aes192
> [   12.172472] alg_test_stdrng test drbg_pr_ctr_aes128
> [   12.218850] alg_test_stdrng test ansi_cprng
> [   15.230417] sun8i-a83t-pinctrl 1c20800.pinctrl: initialized sunXi PIO driver
> [   15.253549] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: initialized sunXi PIO driver
> [   15.265102] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pb not found, using dummy regulator
> [   15.292713] printk: console [ttyS0] disabled
> [   15.318528] 1c28000.serial: ttyS0 at MMIO 0x1c28000 (irq = 54, base_baud = 1500000) is a U6_16550A
> [   15.329196] printk: console [ttyS0] enabled
> [   15.329196] printk: console [ttyS0] enabled
> [   15.337981] printk: bootconsole [uart0] disabled
> [   15.337981] printk: bootconsole [uart0] disabled
> [   15.353739] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pg not found, using dummy regulator
> [   15.397215] 1c28400.serial: ttyS1 at MMIO 0x1c28400 (irq = 55, base_baud = 1500000) is a U6_16550A
> [   15.420171] sun8i-a83t-r-pinctrl 1f02c00.pinctrl: supply vcc-pl not found, using dummy regulator
> [   15.432016] Registered IR keymap rc-empty
> [   15.436862] rc rc0: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0
> [   15.444488] input: sunxi-ir as /devices/platform/soc/1f02000.ir/rc/rc0/input0
> [   15.456659] sunxi-ir 1f02000.ir: initialized sunXi IR driver
> [   15.496947] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pd not found, using dummy regulator
> [   15.511818] sunxi-rsb 1f03400.rsb: RSB running at 3000000 Hz
> [   15.521011] axp20x-rsb sunxi-rsb-3a3: AXP20x variant AXP813 found
> [   15.553157] input: axp20x-pek as /devices/platform/soc/1f03400.rsb/sunxi-rsb-3a3/axp221-pek/input/input1
> [   15.591742] vcc-dram: Bringing 1180000uV into 1200000-1200000uV
> [   15.632089] vcc-wifi: Bringing 2900000uV into 3300000-3300000uV
> [   15.719380] axp20x-adc axp813-adc: DMA mask not set
> [   15.731930] axp20x-battery-power-supply axp20x-battery-power-supply: DMA mask not set
> [   15.748351] axp20x-ac-power-supply axp20x-ac-power-supply: DMA mask not set
> [   15.772317] axp20x-usb-power-supply axp20x-usb-power-supply: DMA mask not set
> [   15.789744] axp20x-rsb sunxi-rsb-3a3: AXP20X driver loaded
> [   15.813791] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-ph not found, using dummy regulator
> [   15.838994] dwmac-sun8i 1c30000.ethernet: IRQ eth_wake_irq not found
> [   15.845480] dwmac-sun8i 1c30000.ethernet: IRQ eth_lpi not found
> [   15.855879] dwmac-sun8i 1c30000.ethernet: PTP uses main clock
> [   15.862064] dwmac-sun8i 1c30000.ethernet: Current syscon value is not the default 1ce6 (expect 0)
> [   15.874428] dwmac-sun8i 1c30000.ethernet: No HW DMA feature register supported
> [   15.881864] dwmac-sun8i 1c30000.ethernet: RX Checksum Offload Engine supported
> [   15.889252] dwmac-sun8i 1c30000.ethernet: COE Type 2
> [   15.894287] dwmac-sun8i 1c30000.ethernet: TX Checksum insertion supported
> [   15.901212] dwmac-sun8i 1c30000.ethernet: Normal descriptors
> [   15.906939] dwmac-sun8i 1c30000.ethernet: Chain mode enabled
> [   15.975999] ehci-platform 1c1a000.usb: EHCI Host Controller
> [   15.982427] ehci-platform 1c1a000.usb: new USB bus registered, assigned bus number 1
> [   15.997426] ehci-platform 1c1a000.usb: irq 48, io mem 0x01c1a000
> [   16.028860] ehci-platform 1c1a000.usb: USB 2.0 started, EHCI 1.00
> [   16.044389] hub 1-0:1.0: USB hub found
> [   16.048913] hub 1-0:1.0: 1 port detected
> [   16.063451] usb_phy_generic usb_phy_generic.0.auto: supply vcc not found, using dummy regulator
> [   16.080515] musb-hdrc musb-hdrc.1.auto: MUSB HDRC host driver
> [   16.086669] musb-hdrc musb-hdrc.1.auto: new USB bus registered, assigned bus number 2
> [   16.106365] hub 2-0:1.0: USB hub found
> [   16.111270] hub 2-0:1.0: 1 port detected
> [   16.193991] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pf not found, using dummy regulator
> [   16.196692] sun8i-a83t-pinctrl 1c20800.pinctrl: supply vcc-pc not found, using dummy regulator
> [   16.270439] sunxi-mmc 1c0f000.mmc: Got CD GPIO
> [   16.304500] sunxi-mmc 1c0f000.mmc: initialized, max. request size: 16384 KB
> [   16.313850] sunxi-mmc 1c11000.mmc: initialized, max. request size: 16384 KB, uses new timings mode
> [   16.330874] dwmac-sun8i 1c30000.ethernet eth0: PHY [stmmac-0:01] driver [RTL8211E Gigabit Ethernet] (irq=POLL)
> [   16.359236] usb 1-1: new high-speed USB device number 2 using ehci-platform
> [   16.375986] dwmac-sun8i 1c30000.ethernet eth0: Register MEM_TYPE_PAGE_POOL RxQ-0
> [   16.378191] mmc1: host does not support reading read-only switch, assuming write-enable
> [   16.383272] mmc2: new DDR MMC card at address 0001
> [   16.390143] mmcblk2: mmc2:0001 8WPD3R 7.28 GiB
> [   16.395281] mmc1: new high speed SDHC card at address 59b4
> [   16.413063] mmcblk1: mmc1:59b4 SMI   7.50 GiB
> [   16.425756] mmcblk2boot0: mmc2:0001 8WPD3R 4.00 MiB
> [   16.437832]  mmcblk1: p1
> [   16.447435] mmcblk2boot1: mmc2:0001 8WPD3R 4.00 MiB
> [   16.462264] dwmac-sun8i 1c30000.ethernet eth0: No Safety Features support found
> [   16.469871] dwmac-sun8i 1c30000.ethernet eth0: No MAC Management Counters available
> [   16.477704] dwmac-sun8i 1c30000.ethernet eth0: PTP not supported by HW
> [   16.496769] dwmac-sun8i 1c30000.ethernet eth0: configuring for phy/rgmii-id link mode
> [   16.585365] hub 1-1:1.0: USB hub found
> [   16.591452] hub 1-1:1.0: 4 ports detected
> [   17.019079] usb 1-1.1: new high-speed USB device number 3 using ehci-platform
> [   19.662500] dwmac-sun8i 1c30000.ethernet eth0: Link is Up - 100Mbps/Half - flow control off
> [   19.699027] Sending DHCP requests ..., OK
> [   25.684277] IP-Config: Got DHCP answer from 192.168.1.100, my address is 192.168.1.206
> [   25.692650] IP-Config: Complete:
> [   25.696020]      device=eth0, hwaddr=02:01:2a:37:9f:4d, ipaddr=192.168.1.206, mask=255.255.255.0, gw=192.168.1.1
> [   25.706583]      host=192.168.1.206, domain=, nis-domain=(none)
> [   25.712760]      bootserver=192.168.1.100, rootserver=192.168.1.100, rootpath=
> [   25.712868]      nameserver0=192.168.1.100
> [   25.730678] ALSA device list:
> [   25.734085]   No soundcards found.
> [   25.773872] Freeing unused kernel image (initmem) memory: 1024K
> [   25.850909] Run /init as init process
> Starting syslogd: OK
> Starting klogd: OK
> Running sysctl: OK
> Populating /dev using udev: [   27.010526] udevd[229]: starting version 3.2.10
> [   27.020221] random: udevd: uninitialized urandom read (16 bytes read)
> [   27.028018] random: udevd: uninitialized urandom read (16 bytes read)
> [   27.034847] random: udevd: uninitialized urandom read (16 bytes read)
> [   27.092031] udevd[230]: starting eudev-3.2.10
> [   28.155904] urandom_read: 1 callbacks suppressed
> [   28.155986] random: udevd: uninitialized urandom read (16 bytes read)
> [   28.265267] random: udevd: uninitialized urandom read (16 bytes read)
> [   28.319448] 8<--- cut here ---
> [   28.322595] Unable to handle kernel paging request at virtual address 60000013
> [   28.329845] [60000013] *pgd=00000000
> [   28.333496] Internal error: Oops: 5 [#1] SMP ARM
> [   28.338161] Modules linked in:
> [   28.341249] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [   28.351003] Hardware name: Allwinner A83t board
> [   28.355550] PC is at unwind_frame+0x4c0/0x6a0
> [   28.359959] LR is at __start_unwind_idx+0x10/0x32ce8
> [   28.364961] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
> [   28.371233] sp : f14118b0  ip : c0d636d8  fp : 00000000
> [   28.376471] r10: 00000001  r9 : c14f7818  r8 : 60000013
> [   28.381706] r7 : f141195c  r6 : 60002000  r5 : 00000002  r4 : 60000013
> [   28.388243] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f14118c8
> [   28.394784] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
> [   28.402027] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
> [   28.407794] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   28.418558] Register r1 information: non-paged memory
> [   28.423670] Register r2 information: non-slab/vmalloc memory
> [   28.429365] Register r3 information: NULL pointer
> [   28.434087] Register r4 information: non-paged memory
> [   28.439163] Register r5 information: non-paged memory
> [   28.444237] Register r6 information: non-paged memory
> [   28.449305] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   28.460049] Register r8 information: non-paged memory
> [   28.465189] Register r9 information: non-slab/vmalloc memory
> [   28.470916] Register r10 information: non-paged memory
> [   28.476142] Register r11 information: NULL pointer
> [   28.481031] Register r12 information: non-slab/vmalloc memory
> [   28.486864] Process udevd (pid: 252, stack limit = 0x(ptrval))
> [   28.492795] Stack: (0xf14118b0 to 0xf1412000)
> [   28.497191] 18a0:                                     00000000 c5654ec0 ffffe000 c0c64d48
> [   28.505383] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
> [   28.513571] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
> [   28.521757] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   28.529944] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
> [   28.538131] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
> [   28.546320] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
> [   28.554508] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
> [   28.562696] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
> [   28.570884] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
> [   28.579071] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
> [   28.587263] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
> [   28.595454] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
> [   28.603644] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
> [   28.611840] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
> [   28.620028] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
> [   28.628215] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
> [   28.636403] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
> [   28.644586] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
> [   28.652771] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
> [   28.660955] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
> [   28.669141] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
> [   28.677328] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
> [   28.685514] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
> [   28.693697] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
> [   28.701878] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
> [   28.710060] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
> [   28.718243] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
> [   28.726434] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
> [   28.734621] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
> [   28.742806] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
> [   28.750991] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
> [   28.759178] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
> [   28.767357] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
> [   28.775538] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
> [   28.783724] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
> [   28.791907] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
> [   28.800095] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
> [   28.808278] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
> [   28.816467] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
> [   28.824651] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
> [   28.832832] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
> [   28.841018] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
> [   28.849202] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   28.857385] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   28.865572] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
> [   28.873757] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
> [   28.881947] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
> [   28.890130] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
> [   28.898316] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
> [   28.906500] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
> [   28.914689] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
> [   28.922874] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
> [   28.931059] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
> [   28.939245] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
> [   28.947433] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
> [   28.955619] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
> [   28.963803] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
> [   28.971985] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
> [   28.980163]  unwind_frame from __save_stack_trace+0x70/0x94
> [   28.985767]  __save_stack_trace from stack_trace_save+0x38/0x58
> [   28.991703]  stack_trace_save from save_trace+0x50/0x410
> [   28.997028]  save_trace from __lock_acquire+0x23c0/0x31b0
> [   29.002431]  __lock_acquire from lock_acquire+0x10c/0x3a8
> [   29.007837]  lock_acquire from _raw_spin_lock_irqsave+0x50/0x6c
> [   29.013768]  _raw_spin_lock_irqsave from unwind_frame+0x388/0x6a0
> [   29.019868]  unwind_frame from walk_stackframe+0x30/0x3c
> [   29.025188]  walk_stackframe from return_address+0x58/0x15c
> [   29.030765]  return_address from trace_hardirqs_off+0x64/0x160
> [   29.036607]  trace_hardirqs_off from __irq_svc+0x54/0xac
> [   29.041942] 8<--- cut here ---
> [   29.044998] Unable to handle kernel paging request at virtual address 60000013
> [   29.052214] [60000013] *pgd=00000000
> [   29.055810] Internal error: Oops: 5 [#2] SMP ARM
> [   29.060432] Modules linked in:
> [   29.063496] CPU: 7 PID: 252 Comm: udevd Not tainted 5.17.0-rc6-next-20220301-00133-g3d7bbd89fe38-dirty #198
> [   29.073233] Hardware name: Allwinner A83t board
> [   29.077761] PC is at unwind_frame+0x4c0/0x6a0
> [   29.082126] LR is at __start_unwind_idx+0x10/0x32ce8
> [   29.087102] pc : [<c010f28c>]    lr : [<c0d636d8>]    psr: 60000193
> [   29.093365] sp : f1411670  ip : c0d636d8  fp : 00000000
> [   29.098587] r10: 00000001  r9 : c5654ec0  r8 : 60000013
> [   29.103809] r7 : f1411714  r6 : 60002000  r5 : 00000002  r4 : 60000013
> [   29.110332] r3 : 00000000  r2 : c0d96414  r1 : 0000000f  r0 : f1411688
> [   29.116855] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment none
> [   29.124074] Control: 10c5387d  Table: 4576c06a  DAC: 00000051
> [   29.129814] Register r0 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   29.140518] Register r1 information: non-paged memory
> [   29.145574] Register r2 information: non-slab/vmalloc memory
> [   29.151235] Register r3 information: NULL pointer
> [   29.155940] Register r4 information: non-paged memory
> [   29.160993] Register r5 information: non-paged memory
> [   29.166044] Register r6 information: non-paged memory
> [   29.171098] Register r7 information: 2-page vmalloc region starting at 0xf1410000 allocated at kernel_clone+0x54/0x410
> [   29.181792] Register r8 information: non-paged memory
> [   29.186845] Register r9 information: slab task_struct start c5654ec0 pointer offset 0
> [   29.194695] Register r10 information: non-paged memory
> [   29.199834] Register r11 information: NULL pointer
> [   29.204627] Register r12 information: non-slab/vmalloc memory
> [   29.210373] Process udevd (pid: 252, stack limit = 0x(ptrval))
> [   29.216204] Stack: (0xf1411670 to 0xf1412000)
> [   29.220561] 1660:                                     c5654ec0 c5654ec0 ffffe000 c0c64d48
> [   29.228734] 1680: 0000002c ffffffff c5654ec0 0000002c ffffffff c0193560 c0f08f78 c0196314
> [   29.236908] 16a0: f1411704 f1411c9c 2e174000 c5654ec0 00000000 60000013 f1412000 60000013
> [   29.245080] 16c0: c0100af4 00000000 c0101278 c0c64de0 c5654ec0 00000005 f141174c c0196558
> [   29.253252] 16e0: f1411704 a29ed944 c5654ec0 c0100af4 c0c643e4 c0100060 c0101278 c0c64de0
> [   29.261416] 1700: c5654ec0 00000005 f141174c c010f52c 30203030 60000013 f1411c68 c0100af4
> [   29.269589] 1720: c0100af4 f1411c64 f1411c48 a29ed944 c108241c f1411860 c0f0e3b4 c5654ec0
> [   29.277762] 1740: 60000193 0000000b c0c642f4 c010b3a4 f1410000 0000000b 00000000 ffffffff
> [   29.285935] 1760: c5654ec0 00000000 ffffffff c0193560 c0f08f78 c0196314 f14117dc c5654ec0
> [   29.294107] 1780: 60000013 00000300 c0c65d54 c5486940 c5654ec0 c5654ec0 00000005 c5486940
> [   29.302279] 17a0: c0c65d54 c5486940 c5654ec0 00000001 00000000 c0196558 f14117dc a29ed944
> [   29.310452] 17c0: c5654ec0 60000013 00000005 c5486940 c0c65d54 c5486940 c5654ec0 00000001
> [   29.318623] 17e0: 00000000 c0113630 c5654ec0 c0113aa0 f1411860 00000000 00000000 00000000
> [   29.326797] 1800: 00000000 00000000 00000000 00000000 00000000 00000005 60000013 f1411860
> [   29.334970] 1820: c0f0ee48 60000013 c5654ec0 00000001 00000000 c0113c64 00000000 c02172b8
> [   29.343143] 1840: c010f28c 60000193 ffffffff c010f28c 60000193 ffffffff f1411894 c0100a70
> [   29.351316] 1860: f14118c8 0000000f c0d96414 00000000 60000013 00000002 60002000 f141195c
> [   29.359488] 1880: 60000013 c14f7818 00000001 00000000 c0d636d8 f14118b0 c0d636d8 c010f28c
> [   29.367660] 18a0: 60000193 ffffffff 00000051 c010ee2c 00000000 c5654ec0 ffffe000 c0c64d48
> [   29.375834] 18c0: 00000041 c0f0959c c5655638 c169015c c14d7cd8 a29ed944 c018c928 60000013
> [   29.384006] 18e0: ffffffff f1411c9c 2e174000 c5654ec0 00000000 60000013 c14e2b38 60000013
> [   29.392180] 1900: c0100af4 00000000 c5655658 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   29.400352] 1920: f1411938 a29ed944 00000080 c5654ec0 deadbeef c0f0959c c12bbfa0 c1084680
> [   29.408525] 1940: c14f7818 c12bab18 f1411984 c010aea8 f141198c 00000000 00000000 60000013
> [   29.416699] 1960: f1411c68 c0100af4 c0100af4 f1411c64 f1411c48 a29ed944 c5655638 c5654ec0
> [   29.424871] 1980: c12bbfb0 c01c2664 00000001 00000008 0007fada c12bbfb0 00000004 a29ed944
> [   29.433043] 19a0: c5655638 c0185b4c c14e4cd0 a29ed944 00000041 00000522 c14e4cd0 c5655698
> [   29.441215] 19c0: c14e449c a29ed944 c0f0e640 c5655638 c14f7818 c0f0959c c169015c c0c65e00
> [   29.449388] 19e0: c14f7818 c5655658 c14e2b38 c018b168 00000000 00000018 f1411adc a29ed944
> [   29.457560] 1a00: 60000093 c0f0e630 c0f0e630 c1084680 c5654ec0 c0f0959c 00000001 c169015c
> [   29.465733] 1a20: 00000000 c0f09598 c0e5d5b8 00000001 c0f0959c c01845d4 7d56fa57 660cde72
> [   29.473905] 1a40: c0c68134 c0c6daa4 c01844b0 00000001 00000000 00000000 c01c2664 c5654ec0
> [   29.482077] 1a60: c0e5d5b8 00000001 00000041 c14f7808 c5655638 f1411b04 014d87c4 00000000
> [   29.490250] 1a80: f1411aec f1411aec c0f0959c c0c65e00 c0c68134 00000000 c5655638 a29ed944
> [   29.498422] 1aa0: c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8 f1411ac8 2e174000 00000080 00000000
> [   29.506594] 1ac0: 60000193 c018c90c 00000001 00000080 00000000 c010f154 00000000 00000000
> [   29.514767] 1ae0: f1411af0 00000000 f1411aec f1411aec f1411ad0 a29ed944 c14e3434 c5654ec0
> [   29.522940] 1b00: c12bbfb0 c01c2664 c5654ec0 00000000 0007fada a29ed944 00000004 c0f0e630
> [   29.531112] 1b20: c010f154 60000193 f1411c1c f1411c30 c5654ec0 00000000 00000000 c0973b98
> [   29.539285] 1b40: 00000001 00000000 c010f154 00000009 f1411c1c c0f0e630 c0f0e630 c010f154
> [   29.547457] 1b60: c108468c c5654ec0 ffffe000 c0c64d48 f1411b90 00000018 c1084680 c0e5d5b8
> [   29.555630] 1b80: c0f09598 00000005 00000001 00000001 00000000 f1411c44 f1411c10 c0217308
> [   29.563802] 1ba0: c0217308 f1411c44 00000000 f1411c30 00000000 00000000 c14e3434 00000000
> [   29.571975] 1bc0: c14f7808 00010000 00000354 2e174000 c5654ec0 a29ed944 c14e2b38 f1411c1c
> [   29.580148] 1be0: f1411c14 c010be28 f1411c9c 2e174000 c5654ec0 00000000 f1411c44 c010ad40
> [   29.588320] 1c00: 00000000 c5654ec0 00000001 c010bea4 00000001 00000000 00000000 f1411c44
> [   29.596492] 1c20: f1411c30 00000000 00000000 f1411c2c f1411c10 a29ed944 c5654ec0 c0100af4
> [   29.604664] 1c40: 60000013 c0217308 c018c928 60000013 ffffffff f1411c9c 2e174000 c5654ec0
> [   29.612837] 1c60: 00000000 c0100af4 00000001 0000000f 2e174000 00000000 c5654ec0 c0e5d5b8
> [   29.621009] 1c80: c0e5d5b8 f1411cb8 2e174000 00000000 00000000 60000013 ffffffff f1411cb8
> [   29.629181] 1ca0: c0185d38 c018c928 60000013 ffffffff 00000051 c018c90c 00000001 00000000
> [   29.637354] 1cc0: 00000000 c03683e4 00000000 00000000 f1411ce8 00000000 00000000 00000000
> [   29.645518] 1ce0: 60000013 c018c90c 00000001 00000000 00000000 c04cab68 00000000 00000000
> [   29.653690] 1d00: c5655638 a29ed944 c5654ec0 c27ad478 c1804200 c27ad478 c57183c0 c03683b8
> [   29.661863] 1d20: c57183c8 00000142 00000000 c0366a44 00000001 00000000 c03683e4 c018c564
> [   29.670036] 1d40: c57183c0 c03683e4 c57183c0 c57183c0 00000000 c38a02b0 c5282ba8 c57183c0
> [   29.678207] 1d60: c38a02b0 00000000 c57183c0 c03683b8 c57183c8 00000142 00000000 c02be950
> [   29.686381] 1d80: 00020000 c0f11eac 00000000 c57183c0 f1411e70 f1411f30 00000142 c02d5528
> [   29.694553] 1da0: 00005a04 c0f0959c c5655638 c169015c c14bec14 00000000 00000000 fffffffe
> [   29.702725] 1dc0: 000017ff 00001000 c0c84818 00000000 c5654ec0 00000041 00000000 c0c8481c
> [   29.710898] 1de0: 00005a04 00000000 00001000 00000000 00000000 00000000 00203000 00000000
> [   29.719070] 1e00: 0000001c 00000000 0000000c a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   29.727242] 1e20: f1411e38 2e174000 00000000 a29ed944 c5654ec0 c5654ec0 c0e5d5b8 c0e5d5b8
> [   29.735414] 1e40: f1411e58 a29ed944 00000000 c5654ec0 c561a000 f1411f30 00000001 c5654ec0
> [   29.743586] 1e60: c5654ec0 00000142 0005c03c c02d62a0 c3dfe490 c5282b40 340e8a69 00000004
> [   29.751759] 1e80: c561a04e c5655638 c18990d0 c1c020c0 c38a02b0 00000101 00000002 00000000
> [   29.759931] 1ea0: 000000f4 0000002e 00000000 00000000 00000000 f1411eb8 00000000 a29ed944
> [   29.768104] 1ec0: c544a6c0 c544a640 c544a678 00000000 c544a6c0 c544a640 c544a678 c0973d1c
> [   29.776276] 1ee0: 00000008 c02e8a18 c561a000 00000000 00000002 ffffff9c 00000000 f14141ed
> [   29.784448] 1f00: c561a000 a29ed944 ffffff9c f1411f60 c561a000 00000008 ffffff9c c02c0788
> [   29.792621] 1f20: 0000001c 00000000 c1802c00 c561a000 00020000 c02c0000 00000004 00000100
> [   29.800794] 1f40: 00000001 a29ed944 c5654ec0 ffffff9c bec6f330 00000142 c0100244 c02c0c04
> [   29.808966] 1f60: 000a0000 00000000 00000000 00000000 00000000 00000000 000a0000 00000000
> [   29.817138] 1f80: 00000000 00000000 00000000 00000000 00000000 a29ed944 00000000 b6f4ab60
> [   29.825310] 1fa0: bec6f730 c0100060 00000000 b6f4ab60 ffffff9c bec6f330 000a0000 00000000
> [   29.833483] 1fc0: 00000000 b6f4ab60 bec6f730 00000142 0005880c bec6f330 000573f4 0005c03c
> [   29.841654] 1fe0: 000571b4 bec6f288 b6c22138 b6c22158 60000010 ffffff9c 00000000 00000000
> [   29.849824]  unwind_frame from unwind_backtrace+0xc0/0x130
> [   29.855319]  unwind_backtrace from die+0x270/0x4b8
> [   29.860116]  die from die_kernel_fault+0x64/0x74
> [   29.864747]  die_kernel_fault from do_bad_area+0x0/0xc8
> [   29.869990] Code: e3110001 0afffff9 e35b0000 1a000031 (e594c000)
> [   29.876086] ---[ end trace 0000000000000000 ]---
> [   29.880707] note: udevd[252] exited with preempt_count 1#
> [   29.896289] udevd[230]: worker [252] terminated by signal 11 (Segmentation fault)
> [   29.904008] udevd[230]: worker [252] failed while handling '/devices/platform/soc/1c11000.mmc/mmc_host/mmc2/mmc2:0001/block/mmcblk2'
> [   54.338560] rcu: INFO: rcu_sched detected stalls on CPUs/tasks:
> [   54.344576] rcu:     1-...!: (1 GPs behind) idle=bd1/1/0x40000000 softirq=348/350 fqs=0
> [   54.352430] rcu:     4-...!: (0 ticks this GP) idle=135/1/0x40000000 softirq=123/123 fqs=0
> [   54.360544]  (detected by 7, t=2604 jiffies, g=121, q=8900)
> [   54.366138] Sending NMI from CPU 7 to CPUs 1:
> [   64.371235] Sending NMI from CPU 7 to CPUs 4:
> [   74.376326] rcu: rcu_sched kthread timer wakeup didn't happen for 4604 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
> [   74.387375] rcu:     Possible timer handling issue on cpu=4 timer-softirq=29
> [   74.394168] rcu: rcu_sched kthread starved for 4607 jiffies! g121 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=4
> [   74.404263] rcu:     Unless rcu_sched kthread gets sufficient CPU time, OOM is now expected behavior.
> [   74.413221] rcu: RCU grace-period kthread stack dump:
> [   74.418277] task:rcu_sched       state:I stack:    0 pid:   11 ppid:     2 flags:0x00000000
> [   74.426660]  __schedule from schedule+0x54/0xc8
> [   74.431230]  schedule from schedule_timeout+0xb0/0x200
> [   74.436397]  schedule_timeout from rcu_gp_fqs_loop+0x16c/0x7d4
> [   74.442261]  rcu_gp_fqs_loop from rcu_gp_kthread+0x1ac/0x328
> [   74.447942]  rcu_gp_kthread from kthread+0xf0/0x110
> [   74.452849]  kthread from ret_from_fork+0x14/0x2c
> [   74.457580] rcu: Stack dump where RCU GP kthread last ran:
> [   74.463068] Sending NMI from CPU 7 to CPUs 4:

Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Wed, Mar 02, 2022 at 09:44:52AM +0100, Ard Biesheuvel a écrit :
> On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> >
> > Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > > >
> > > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > > <linux@armlinux.org.uk> wrote:
> > > > >
> > > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > > Hello
> > > > > >
> > > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > >
> > > > > > This happen on a sun8i-a83t-bananapi-m3
> > > > >
> > > > > Have you enabled vmapped stacks?
> > > > >
> > > >
> > > > This is probably related to
> > > >
> > > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > > >
> > > > which removes a kernel_text_address() check on frame->pc as it is
> > > > essentially redundant, given that we won't find unwind data otherwise.
> > > > Unfortunately, I failed to realise that the other check carries a
> > > > pr_warn(), which may apparently fire spuriously in some cases.
> > > >
> > > > The 0x0 value can easily be filtered out, but i would be interesting
> > > > where the other value originates from. We might be able to solve this
> > > > with a simple .nounwind directive in a asm routine somewhere.
> > > >
> > > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > > in the mean time what the address 0xcf0c440 coincides with in your
> > > > build?
> > >
> > > Something like the below should restore the previous behavior, while
> > > taking the kernel_text_address() check out of the hot path.
> > >
> > > --- a/arch/arm/kernel/unwind.c
> > > +++ b/arch/arm/kernel/unwind.c
> > > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> > >
> > >         idx = unwind_find_idx(frame->pc);
> > >         if (!idx) {
> > > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > +               if (frame->pc && kernel_text_address(frame->pc))
> > > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > >                 return -URC_FAILURE;
> > >         }
> >
> > Hello
> >
> > This is a more detailed trace from my follow up after your patch:
> 
> So the log below is from a kernel that has the above patch applied?
> Could you please share the .config?
> 

Yes this is a kernel with above patch applied (this board do not boot without it).
This is based on sunxi_defconfig but with all CRYPTO and some CONFIG_DEBUG
#
# Automatically generated file; DO NOT EDIT.
# Linux/arm 5.17.0-rc6 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="armv7a-unknown-linux-gnueabihf-gcc (Gentoo 11.2.0 p1) 11.2.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110200
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23700
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23700
CONFIG_LLD_VERSION=0
CONFIG_CC_HAS_ASM_GOTO=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=0
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_INIT_ENV_ARG_LIMIT=32
# CONFIG_COMPILE_TEST is not set
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_LOCALVERSION_AUTO=y
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
CONFIG_SWAP=y
# CONFIG_SYSVIPC is not set
# CONFIG_POSIX_MQUEUE is not set
# CONFIG_WATCH_QUEUE is not set
CONFIG_CROSS_MEMORY_ATTACH=y
# CONFIG_USELIB is not set
# CONFIG_AUDIT is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK=y
CONFIG_GENERIC_IRQ_MIGRATION=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_GENERIC_IRQ_CHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_IRQ_FASTEOI_HIERARCHY_HANDLERS=y
CONFIG_GENERIC_IRQ_IPI=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# CONFIG_GENERIC_IRQ_DEBUGFS is not set
# end of IRQ subsystem

CONFIG_GENERIC_IRQ_MULTI_HANDLER=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_ARCH_HAS_TICK_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y

#
# Timers subsystem
#
CONFIG_TICK_ONESHOT=y
CONFIG_NO_HZ_COMMON=y
# CONFIG_HZ_PERIODIC is not set
CONFIG_NO_HZ_IDLE=y
# CONFIG_NO_HZ_FULL is not set
CONFIG_NO_HZ=y
CONFIG_HIGH_RES_TIMERS=y
# end of Timers subsystem

CONFIG_BPF=y
CONFIG_HAVE_EBPF_JIT=y

#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# CONFIG_BPF_JIT is not set
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
CONFIG_PREEMPT_COUNT=y

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
CONFIG_SCHED_THERMAL_PRESSURE=y
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_TASKSTATS is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TREE_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TREE_SRCU=y
CONFIG_RCU_STALL_COMMON=y
CONFIG_RCU_NEED_SEGCBLIST=y
# end of RCU Subsystem

CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_LOG_CPU_MAX_BUF_SHIFT=12
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
# CONFIG_PRINTK_INDEX is not set
CONFIG_GENERIC_SCHED_CLOCK=y

#
# Scheduler features
#
# CONFIG_UCLAMP_TASK is not set
# end of Scheduler features

CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_CGROUPS=y
# CONFIG_MEMCG is not set
# CONFIG_BLK_CGROUP is not set
# CONFIG_CGROUP_SCHED is not set
# CONFIG_CGROUP_PIDS is not set
# CONFIG_CGROUP_RDMA is not set
# CONFIG_CGROUP_FREEZER is not set
# CONFIG_CPUSETS is not set
# CONFIG_CGROUP_DEVICE is not set
# CONFIG_CGROUP_CPUACCT is not set
# CONFIG_CGROUP_PERF is not set
# CONFIG_CGROUP_MISC is not set
# CONFIG_CGROUP_DEBUG is not set
CONFIG_NAMESPACES=y
CONFIG_UTS_NS=y
# CONFIG_USER_NS is not set
CONFIG_PID_NS=y
CONFIG_NET_NS=y
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_RD_GZIP=y
CONFIG_RD_BZIP2=y
CONFIG_RD_LZMA=y
CONFIG_RD_XZ=y
CONFIG_RD_LZO=y
CONFIG_RD_LZ4=y
CONFIG_RD_ZSTD=y
# CONFIG_BOOT_CONFIG is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_HAVE_UID16=y
# CONFIG_EXPERT is not set
CONFIG_UID16=y
CONFIG_MULTIUSER=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_ALL=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
# CONFIG_USERFAULTFD is not set
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_PERF_USE_VMALLOC=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# CONFIG_DEBUG_PERF_USE_VMALLOC is not set
# end of Kernel Performance Events And Counters

CONFIG_VM_EVENT_COUNTERS=y
CONFIG_SLUB_DEBUG=y
CONFIG_COMPAT_BRK=y
# CONFIG_SLAB is not set
CONFIG_SLUB=y
CONFIG_SLAB_MERGE_DEFAULT=y
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
CONFIG_SLUB_CPU_PARTIAL=y
CONFIG_SYSTEM_DATA_VERIFICATION=y
# CONFIG_PROFILING is not set
CONFIG_TRACEPOINTS=y
# end of General setup

CONFIG_ARM=y
CONFIG_ARM_HAS_GROUP_RELOCS=y
CONFIG_ARM_HAS_SG_CHAIN=y
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
CONFIG_HAVE_PROC_CPU=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_GENERIC_BUG=y
CONFIG_PGTABLE_LEVELS=2

#
# System Type
#
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_BITS_MAX=16
CONFIG_ARCH_MULTIPLATFORM=y
# CONFIG_ARCH_EP93XX is not set
# CONFIG_ARCH_FOOTBRIDGE is not set
# CONFIG_ARCH_IOP32X is not set
# CONFIG_ARCH_IXP4XX is not set
# CONFIG_ARCH_DOVE is not set
# CONFIG_ARCH_PXA is not set
# CONFIG_ARCH_SA1100 is not set
# CONFIG_ARCH_S3C24XX is not set
# CONFIG_ARCH_OMAP1 is not set

#
# Multiple platform selection
#

#
# CPU Core family selection
#
# CONFIG_ARCH_MULTI_V6 is not set
CONFIG_ARCH_MULTI_V7=y
CONFIG_ARCH_MULTI_V6_V7=y
# end of Multiple platform selection

# CONFIG_ARCH_VIRT is not set
# CONFIG_ARCH_ACTIONS is not set
# CONFIG_ARCH_ALPINE is not set
# CONFIG_ARCH_ARTPEC is not set
# CONFIG_ARCH_ASPEED is not set
# CONFIG_ARCH_AT91 is not set
# CONFIG_ARCH_BCM is not set
# CONFIG_ARCH_BERLIN is not set
# CONFIG_ARCH_DIGICOLOR is not set
# CONFIG_ARCH_EXYNOS is not set
# CONFIG_ARCH_HIGHBANK is not set
# CONFIG_ARCH_HISI is not set
# CONFIG_ARCH_MXC is not set
# CONFIG_ARCH_KEYSTONE is not set
# CONFIG_ARCH_MEDIATEK is not set
# CONFIG_ARCH_MESON is not set
# CONFIG_ARCH_MILBEAUT is not set
# CONFIG_ARCH_MMP is not set
# CONFIG_ARCH_MSTARV7 is not set
# CONFIG_ARCH_MVEBU is not set
# CONFIG_ARCH_NPCM is not set

#
# TI OMAP/AM/DM/DRA Family
#
# CONFIG_ARCH_OMAP3 is not set
# CONFIG_ARCH_OMAP4 is not set
# CONFIG_SOC_OMAP5 is not set
# CONFIG_SOC_AM33XX is not set
# CONFIG_SOC_AM43XX is not set
# CONFIG_SOC_DRA7XX is not set
# end of TI OMAP/AM/DM/DRA Family

# CONFIG_ARCH_QCOM is not set
# CONFIG_ARCH_RDA is not set
# CONFIG_ARCH_REALTEK is not set
# CONFIG_ARCH_REALVIEW is not set
# CONFIG_ARCH_ROCKCHIP is not set
# CONFIG_ARCH_S5PV210 is not set
# CONFIG_ARCH_RENESAS is not set
# CONFIG_ARCH_INTEL_SOCFPGA is not set
# CONFIG_PLAT_SPEAR is not set
# CONFIG_ARCH_STI is not set
# CONFIG_ARCH_STM32 is not set
CONFIG_ARCH_SUNXI=y
CONFIG_MACH_SUN4I=y
CONFIG_MACH_SUN5I=y
CONFIG_MACH_SUN6I=y
CONFIG_MACH_SUN7I=y
CONFIG_MACH_SUN8I=y
CONFIG_MACH_SUN9I=y
CONFIG_ARCH_SUNXI_MC_SMP=y
# CONFIG_ARCH_TEGRA is not set
# CONFIG_ARCH_UNIPHIER is not set
# CONFIG_ARCH_U8500 is not set
# CONFIG_ARCH_VEXPRESS is not set
# CONFIG_ARCH_WM8850 is not set
# CONFIG_ARCH_ZYNQ is not set

#
# Processor Type
#
CONFIG_CPU_V7=y
CONFIG_CPU_THUMB_CAPABLE=y
CONFIG_CPU_32v6K=y
CONFIG_CPU_32v7=y
CONFIG_CPU_ABRT_EV7=y
CONFIG_CPU_PABRT_V7=y
CONFIG_CPU_CACHE_V7=y
CONFIG_CPU_CACHE_VIPT=y
CONFIG_CPU_COPY_V6=y
CONFIG_CPU_TLB_V7=y
CONFIG_CPU_HAS_ASID=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y

#
# Processor Features
#
# CONFIG_ARM_LPAE is not set
CONFIG_ARM_THUMB=y
# CONFIG_ARM_THUMBEE is not set
CONFIG_ARM_VIRT_EXT=y
CONFIG_SWP_EMULATE=y
# CONFIG_CPU_BIG_ENDIAN is not set
# CONFIG_CPU_ICACHE_DISABLE is not set
# CONFIG_CPU_ICACHE_MISMATCH_WORKAROUND is not set
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_CPU_SPECTRE=y
CONFIG_HARDEN_BRANCH_PREDICTOR=y
CONFIG_KUSER_HELPERS=y
CONFIG_VDSO=y
CONFIG_OUTER_CACHE=y
CONFIG_OUTER_CACHE_SYNC=y
CONFIG_MIGHT_HAVE_CACHE_L2X0=y
CONFIG_CACHE_L2X0=y
# CONFIG_CACHE_L2X0_PMU is not set
# CONFIG_PL310_ERRATA_588369 is not set
# CONFIG_PL310_ERRATA_727915 is not set
# CONFIG_PL310_ERRATA_753970 is not set
# CONFIG_PL310_ERRATA_769419 is not set
CONFIG_ARM_L1_CACHE_SHIFT_6=y
CONFIG_ARM_L1_CACHE_SHIFT=6
CONFIG_ARM_DMA_MEM_BUFFERABLE=y
CONFIG_ARM_HEAVY_MB=y
CONFIG_ARCH_SUPPORTS_BIG_ENDIAN=y
CONFIG_DEBUG_ALIGN_RODATA=y
# CONFIG_ARM_ERRATA_430973 is not set
CONFIG_ARM_ERRATA_643719=y
# CONFIG_ARM_ERRATA_720789 is not set
# CONFIG_ARM_ERRATA_754322 is not set
# CONFIG_ARM_ERRATA_754327 is not set
# CONFIG_ARM_ERRATA_764369 is not set
# CONFIG_ARM_ERRATA_775420 is not set
# CONFIG_ARM_ERRATA_798181 is not set
# CONFIG_ARM_ERRATA_773022 is not set
# CONFIG_ARM_ERRATA_818325_852422 is not set
# CONFIG_ARM_ERRATA_821420 is not set
# CONFIG_ARM_ERRATA_825619 is not set
# CONFIG_ARM_ERRATA_857271 is not set
# CONFIG_ARM_ERRATA_852421 is not set
# CONFIG_ARM_ERRATA_852423 is not set
# CONFIG_ARM_ERRATA_857272 is not set
# end of System Type

#
# Bus support
#
# CONFIG_ARM_ERRATA_814220 is not set
# end of Bus support

#
# Kernel Features
#
CONFIG_HAVE_SMP=y
CONFIG_SMP=y
CONFIG_SMP_ON_UP=y
CONFIG_CURRENT_POINTER_IN_TPIDRURO=y
CONFIG_IRQSTACKS=y
CONFIG_ARM_CPU_TOPOLOGY=y
# CONFIG_SCHED_MC is not set
# CONFIG_SCHED_SMT is not set
CONFIG_HAVE_ARM_ARCH_TIMER=y
# CONFIG_MCPM is not set
# CONFIG_BIG_LITTLE is not set
CONFIG_VMSPLIT_3G=y
# CONFIG_VMSPLIT_3G_OPT is not set
# CONFIG_VMSPLIT_2G is not set
# CONFIG_VMSPLIT_1G is not set
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_NR_CPUS=8
CONFIG_HOTPLUG_CPU=y
CONFIG_ARM_PSCI=y
CONFIG_ARCH_NR_GPIO=416
CONFIG_HZ_FIXED=0
CONFIG_HZ_100=y
# CONFIG_HZ_200 is not set
# CONFIG_HZ_250 is not set
# CONFIG_HZ_300 is not set
# CONFIG_HZ_500 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=100
CONFIG_SCHED_HRTICK=y
# CONFIG_THUMB2_KERNEL is not set
CONFIG_ARM_PATCH_IDIV=y
CONFIG_AEABI=y
# CONFIG_OABI_COMPAT is not set
CONFIG_ARCH_SELECT_MEMORY_MODEL=y
CONFIG_ARCH_FLATMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_HIGHMEM=y
CONFIG_HIGHPTE=y
CONFIG_CPU_SW_DOMAIN_PAN=y
CONFIG_HW_PERF_EVENTS=y
CONFIG_ARM_MODULE_PLTS=y
CONFIG_FORCE_MAX_ZONEORDER=11
CONFIG_ALIGNMENT_TRAP=y
# CONFIG_UACCESS_WITH_MEMCPY is not set
# CONFIG_PARAVIRT is not set
# CONFIG_PARAVIRT_TIME_ACCOUNTING is not set
# CONFIG_XEN is not set
CONFIG_STACKPROTECTOR_PER_TASK=y
# end of Kernel Features

#
# Boot options
#
CONFIG_USE_OF=y
CONFIG_ATAGS=y
# CONFIG_DEPRECATED_PARAM_STRUCT is not set
CONFIG_ZBOOT_ROM_TEXT=0x0
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y
CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER=y
# CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is not set
CONFIG_CMDLINE=""
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_AUTO_ZRELADDR=y
# CONFIG_EFI is not set
# end of Boot options

#
# CPU Power Management
#

#
# CPU Frequency scaling
#
CONFIG_CPU_FREQ=y
CONFIG_CPU_FREQ_GOV_ATTR_SET=y
# CONFIG_CPU_FREQ_STAT is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_DEFAULT_GOV_SCHEDUTIL=y
CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
# CONFIG_CPU_FREQ_GOV_POWERSAVE is not set
# CONFIG_CPU_FREQ_GOV_USERSPACE is not set
# CONFIG_CPU_FREQ_GOV_ONDEMAND is not set
# CONFIG_CPU_FREQ_GOV_CONSERVATIVE is not set
CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y

#
# CPU frequency scaling drivers
#
CONFIG_CPUFREQ_DT=y
CONFIG_CPUFREQ_DT_PLATDEV=y
# CONFIG_ARM_ALLWINNER_SUN50I_CPUFREQ_NVMEM is not set
# end of CPU Frequency scaling

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# end of CPU Idle
# end of CPU Power Management

#
# Floating point emulation
#

#
# At least one emulation must be selected
#
CONFIG_VFP=y
CONFIG_VFPv3=y
CONFIG_NEON=y
# CONFIG_KERNEL_MODE_NEON is not set
# end of Floating point emulation

#
# Power management options
#
CONFIG_SUSPEND=y
CONFIG_SUSPEND_FREEZER=y
# CONFIG_HIBERNATION is not set
CONFIG_PM_SLEEP=y
CONFIG_PM_SLEEP_SMP=y
# CONFIG_PM_AUTOSLEEP is not set
# CONFIG_PM_WAKELOCKS is not set
CONFIG_PM=y
# CONFIG_PM_DEBUG is not set
# CONFIG_APM_EMULATION is not set
CONFIG_PM_CLK=y
# CONFIG_WQ_POWER_EFFICIENT_DEFAULT is not set
CONFIG_CPU_PM=y
# CONFIG_ENERGY_MODEL is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARM_CPU_SUSPEND=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
# end of Power management options

CONFIG_ARM_CRYPTO=y
# CONFIG_CRYPTO_SHA1_ARM is not set
# CONFIG_CRYPTO_SHA256_ARM is not set
# CONFIG_CRYPTO_SHA512_ARM is not set
# CONFIG_CRYPTO_BLAKE2S_ARM is not set
# CONFIG_CRYPTO_AES_ARM is not set
# CONFIG_CRYPTO_CHACHA20_NEON is not set
# CONFIG_CRYPTO_POLY1305_ARM is not set
CONFIG_AS_VFP_VMRS_FPINST=y

#
# General architecture-dependent options
#
# CONFIG_KPROBES is not set
# CONFIG_JUMP_LABEL is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_KEEPINITRD=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_32BIT_OFF_T=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_SECCOMP=y
CONFIG_SECCOMP_FILTER=y
# CONFIG_SECCOMP_CACHE_DEBUG is not set
CONFIG_HAVE_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR=y
CONFIG_STACKPROTECTOR_STRONG=y
CONFIG_LTO_NONE=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_REL=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=8
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OLD_SIGACTION=y
CONFIG_COMPAT_32BIT_TIME=y
CONFIG_HAVE_ARCH_VMAP_STACK=y
CONFIG_VMAP_STACK=y
CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y
CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_STRICT_MODULE_RWX=y
CONFIG_ARCH_HAS_PHYS_TO_DMA=y
# CONFIG_LOCK_EVENT_COUNTS is not set
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_HAVE_ARCH_PFN_VALID=y

#
# GCOV-based kernel profiling
#
# CONFIG_GCOV_KERNEL is not set
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
CONFIG_GCC_PLUGINS=y
# CONFIG_GCC_PLUGIN_LATENT_ENTROPY is not set
# CONFIG_GCC_PLUGIN_RANDSTRUCT is not set
CONFIG_GCC_PLUGIN_ARM_SSP_PER_TASK=y
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
CONFIG_MODULES=y
# CONFIG_MODULE_FORCE_LOAD is not set
CONFIG_MODULE_UNLOAD=y
# CONFIG_MODULE_FORCE_UNLOAD is not set
# CONFIG_MODVERSIONS is not set
# CONFIG_MODULE_SRCVERSION_ALL is not set
# CONFIG_MODULE_SIG is not set
CONFIG_MODULE_COMPRESS_NONE=y
# CONFIG_MODULE_COMPRESS_GZIP is not set
# CONFIG_MODULE_COMPRESS_XZ is not set
# CONFIG_MODULE_COMPRESS_ZSTD is not set
# CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS is not set
CONFIG_MODPROBE_PATH="/sbin/modprobe"
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_BLOCK=y
CONFIG_BLOCK_LEGACY_AUTOLOAD=y
CONFIG_BLK_DEV_BSG_COMMON=y
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
CONFIG_BLK_DEBUG_FS=y
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

CONFIG_BLK_PM=y
CONFIG_BLOCK_HOLDER_DEPRECATED=y
CONFIG_BLK_MQ_STACKING=y

#
# IO Schedulers
#
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_KYBER=y
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers

CONFIG_PADATA=y
CONFIG_ASN1=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_RWSEM_SPIN_ON_OWNER=y
CONFIG_LOCK_SPIN_ON_OWNER=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_FREEZER=y

#
# Executable file formats
#
CONFIG_BINFMT_ELF=y
# CONFIG_BINFMT_ELF_FDPIC is not set
CONFIG_ELFCORE=y
CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
CONFIG_BINFMT_SCRIPT=y
CONFIG_ARCH_HAS_BINFMT_FLAT=y
# CONFIG_BINFMT_FLAT is not set
CONFIG_BINFMT_FLAT_ARGVP_ENVP_ON_STACK=y
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
# CONFIG_SPARSEMEM_MANUAL is not set
CONFIG_FLATMEM=y
CONFIG_ARCH_KEEP_MEMBLOCK=y
CONFIG_MEMORY_ISOLATION=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_COMPACTION=y
# CONFIG_PAGE_REPORTING is not set
CONFIG_MIGRATION=y
CONFIG_CONTIG_ALLOC=y
CONFIG_BOUNCE=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_CMA=y
# CONFIG_CMA_DEBUG is not set
# CONFIG_CMA_DEBUGFS is not set
# CONFIG_CMA_SYSFS is not set
CONFIG_CMA_AREAS=7
# CONFIG_ZSWAP is not set
# CONFIG_ZPOOL is not set
# CONFIG_ZSMALLOC is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
# CONFIG_PERCPU_STATS is not set
# CONFIG_GUP_TEST is not set
CONFIG_KMAP_LOCAL=y
CONFIG_KMAP_LOCAL_NON_LINEAR_PTE_ARRAY=y
# CONFIG_ANON_VMA_NAME is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

CONFIG_NET=y
CONFIG_NET_INGRESS=y
CONFIG_NET_EGRESS=y
CONFIG_SKB_EXTENSIONS=y

#
# Networking options
#
CONFIG_PACKET=y
# CONFIG_PACKET_DIAG is not set
CONFIG_UNIX=y
CONFIG_UNIX_SCM=y
CONFIG_AF_UNIX_OOB=y
# CONFIG_UNIX_DIAG is not set
# CONFIG_TLS is not set
CONFIG_XFRM=y
CONFIG_XFRM_ALGO=y
CONFIG_XFRM_USER=y
# CONFIG_XFRM_SUB_POLICY is not set
# CONFIG_XFRM_MIGRATE is not set
CONFIG_XFRM_STATISTICS=y
CONFIG_XFRM_AH=y
CONFIG_XFRM_ESP=y
CONFIG_XFRM_IPCOMP=y
# CONFIG_NET_KEY is not set
CONFIG_INET=y
# CONFIG_IP_MULTICAST is not set
# CONFIG_IP_ADVANCED_ROUTER is not set
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
# CONFIG_IP_PNP_RARP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE_DEMUX is not set
# CONFIG_SYN_COOKIES is not set
# CONFIG_NET_IPVTI is not set
# CONFIG_NET_FOU is not set
CONFIG_INET_AH=y
CONFIG_INET_ESP=y
# CONFIG_INET_ESP_OFFLOAD is not set
# CONFIG_INET_ESPINTCP is not set
CONFIG_INET_IPCOMP=y
CONFIG_INET_XFRM_TUNNEL=y
CONFIG_INET_TUNNEL=y
# CONFIG_INET_DIAG is not set
# CONFIG_TCP_CONG_ADVANCED is not set
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"
# CONFIG_TCP_MD5SIG is not set
# CONFIG_IPV6 is not set
# CONFIG_MPTCP is not set
# CONFIG_NETWORK_SECMARK is not set
CONFIG_NET_PTP_CLASSIFY=y
# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y

#
# Core Netfilter Configuration
#
CONFIG_NETFILTER_INGRESS=y
CONFIG_NETFILTER_EGRESS=y
# CONFIG_NETFILTER_NETLINK_ACCT is not set
# CONFIG_NETFILTER_NETLINK_QUEUE is not set
# CONFIG_NETFILTER_NETLINK_LOG is not set
# CONFIG_NETFILTER_NETLINK_OSF is not set
# CONFIG_NF_CONNTRACK is not set
# CONFIG_NF_LOG_SYSLOG is not set
# CONFIG_NF_TABLES is not set
CONFIG_NETFILTER_XTABLES=y

#
# Xtables combined modules
#
# CONFIG_NETFILTER_XT_MARK is not set

#
# Xtables targets
#
# CONFIG_NETFILTER_XT_TARGET_CLASSIFY is not set
# CONFIG_NETFILTER_XT_TARGET_HMARK is not set
# CONFIG_NETFILTER_XT_TARGET_IDLETIMER is not set
# CONFIG_NETFILTER_XT_TARGET_LED is not set
# CONFIG_NETFILTER_XT_TARGET_LOG is not set
# CONFIG_NETFILTER_XT_TARGET_MARK is not set
# CONFIG_NETFILTER_XT_TARGET_NFLOG is not set
# CONFIG_NETFILTER_XT_TARGET_NFQUEUE is not set
# CONFIG_NETFILTER_XT_TARGET_RATEEST is not set
# CONFIG_NETFILTER_XT_TARGET_TEE is not set
# CONFIG_NETFILTER_XT_TARGET_TCPMSS is not set

#
# Xtables matches
#
# CONFIG_NETFILTER_XT_MATCH_ADDRTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_BPF is not set
# CONFIG_NETFILTER_XT_MATCH_CGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_COMMENT is not set
# CONFIG_NETFILTER_XT_MATCH_CPU is not set
# CONFIG_NETFILTER_XT_MATCH_DCCP is not set
# CONFIG_NETFILTER_XT_MATCH_DEVGROUP is not set
# CONFIG_NETFILTER_XT_MATCH_DSCP is not set
# CONFIG_NETFILTER_XT_MATCH_ECN is not set
# CONFIG_NETFILTER_XT_MATCH_ESP is not set
# CONFIG_NETFILTER_XT_MATCH_HASHLIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_HL is not set
# CONFIG_NETFILTER_XT_MATCH_IPCOMP is not set
# CONFIG_NETFILTER_XT_MATCH_IPRANGE is not set
# CONFIG_NETFILTER_XT_MATCH_L2TP is not set
# CONFIG_NETFILTER_XT_MATCH_LENGTH is not set
# CONFIG_NETFILTER_XT_MATCH_LIMIT is not set
# CONFIG_NETFILTER_XT_MATCH_MAC is not set
# CONFIG_NETFILTER_XT_MATCH_MARK is not set
# CONFIG_NETFILTER_XT_MATCH_MULTIPORT is not set
# CONFIG_NETFILTER_XT_MATCH_NFACCT is not set
# CONFIG_NETFILTER_XT_MATCH_OSF is not set
# CONFIG_NETFILTER_XT_MATCH_OWNER is not set
CONFIG_NETFILTER_XT_MATCH_POLICY=y
# CONFIG_NETFILTER_XT_MATCH_PKTTYPE is not set
# CONFIG_NETFILTER_XT_MATCH_QUOTA is not set
# CONFIG_NETFILTER_XT_MATCH_RATEEST is not set
# CONFIG_NETFILTER_XT_MATCH_REALM is not set
# CONFIG_NETFILTER_XT_MATCH_RECENT is not set
# CONFIG_NETFILTER_XT_MATCH_SCTP is not set
# CONFIG_NETFILTER_XT_MATCH_SOCKET is not set
# CONFIG_NETFILTER_XT_MATCH_STATISTIC is not set
# CONFIG_NETFILTER_XT_MATCH_STRING is not set
# CONFIG_NETFILTER_XT_MATCH_TCPMSS is not set
# CONFIG_NETFILTER_XT_MATCH_TIME is not set
# CONFIG_NETFILTER_XT_MATCH_U32 is not set
# end of Core Netfilter Configuration

# CONFIG_IP_SET is not set
# CONFIG_IP_VS is not set

#
# IP: Netfilter Configuration
#
# CONFIG_NF_SOCKET_IPV4 is not set
# CONFIG_NF_TPROXY_IPV4 is not set
# CONFIG_NF_DUP_IPV4 is not set
# CONFIG_NF_LOG_ARP is not set
# CONFIG_NF_LOG_IPV4 is not set
# CONFIG_NF_REJECT_IPV4 is not set
# CONFIG_IP_NF_IPTABLES is not set
# CONFIG_IP_NF_ARPTABLES is not set
# end of IP: Netfilter Configuration

# CONFIG_BPFILTER is not set
# CONFIG_IP_DCCP is not set
# CONFIG_IP_SCTP is not set
# CONFIG_RDS is not set
# CONFIG_TIPC is not set
# CONFIG_ATM is not set
# CONFIG_L2TP is not set
# CONFIG_BRIDGE is not set
# CONFIG_NET_DSA is not set
# CONFIG_VLAN_8021Q is not set
# CONFIG_DECNET is not set
# CONFIG_LLC2 is not set
# CONFIG_ATALK is not set
# CONFIG_X25 is not set
# CONFIG_LAPB is not set
# CONFIG_PHONET is not set
# CONFIG_IEEE802154 is not set
# CONFIG_NET_SCHED is not set
# CONFIG_DCB is not set
CONFIG_DNS_RESOLVER=y
# CONFIG_BATMAN_ADV is not set
# CONFIG_OPENVSWITCH is not set
# CONFIG_VSOCKETS is not set
CONFIG_NETLINK_DIAG=y
# CONFIG_MPLS is not set
# CONFIG_NET_NSH is not set
# CONFIG_HSR is not set
# CONFIG_NET_SWITCHDEV is not set
# CONFIG_NET_L3_MASTER_DEV is not set
# CONFIG_QRTR is not set
# CONFIG_NET_NCSI is not set
CONFIG_PCPU_DEV_REFCNT=y
CONFIG_RPS=y
CONFIG_RFS_ACCEL=y
CONFIG_SOCK_RX_QUEUE_MAPPING=y
CONFIG_XPS=y
# CONFIG_CGROUP_NET_PRIO is not set
# CONFIG_CGROUP_NET_CLASSID is not set
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_BQL=y
CONFIG_NET_FLOW_LIMIT=y

#
# Network testing
#
# CONFIG_NET_PKTGEN is not set
# CONFIG_NET_DROP_MONITOR is not set
# end of Network testing
# end of Networking options

# CONFIG_HAMRADIO is not set
CONFIG_CAN=y
CONFIG_CAN_RAW=y
CONFIG_CAN_BCM=y
CONFIG_CAN_GW=y
# CONFIG_CAN_J1939 is not set
# CONFIG_CAN_ISOTP is not set

#
# CAN Device Drivers
#
# CONFIG_CAN_VCAN is not set
# CONFIG_CAN_VXCAN is not set
# CONFIG_CAN_SLCAN is not set
CONFIG_CAN_DEV=y
CONFIG_CAN_CALC_BITTIMING=y
# CONFIG_CAN_FLEXCAN is not set
# CONFIG_CAN_GRCAN is not set
CONFIG_CAN_SUN4I=y
# CONFIG_CAN_TI_HECC is not set
# CONFIG_CAN_C_CAN is not set
# CONFIG_CAN_CC770 is not set
# CONFIG_CAN_IFI_CANFD is not set
# CONFIG_CAN_M_CAN is not set
# CONFIG_CAN_SJA1000 is not set
# CONFIG_CAN_SOFTING is not set

#
# CAN SPI interfaces
#
# CONFIG_CAN_HI311X is not set
# CONFIG_CAN_MCP251X is not set
# CONFIG_CAN_MCP251XFD is not set
# end of CAN SPI interfaces

#
# CAN USB interfaces
#
# CONFIG_CAN_8DEV_USB is not set
# CONFIG_CAN_EMS_USB is not set
# CONFIG_CAN_ESD_USB2 is not set
# CONFIG_CAN_ETAS_ES58X is not set
# CONFIG_CAN_GS_USB is not set
# CONFIG_CAN_KVASER_USB is not set
# CONFIG_CAN_MCBA_USB is not set
# CONFIG_CAN_PEAK_USB is not set
# CONFIG_CAN_UCAN is not set
# end of CAN USB interfaces

# CONFIG_CAN_DEBUG_DEVICES is not set
# end of CAN Device Drivers

# CONFIG_BT is not set
# CONFIG_AF_RXRPC is not set
# CONFIG_AF_KCM is not set
# CONFIG_MCTP is not set
CONFIG_WIRELESS=y
CONFIG_WEXT_CORE=y
CONFIG_WEXT_PROC=y
CONFIG_CFG80211=m
# CONFIG_NL80211_TESTMODE is not set
# CONFIG_CFG80211_DEVELOPER_WARNINGS is not set
CONFIG_CFG80211_REQUIRE_SIGNED_REGDB=y
CONFIG_CFG80211_USE_KERNEL_REGDB_KEYS=y
CONFIG_CFG80211_DEFAULT_PS=y
# CONFIG_CFG80211_DEBUGFS is not set
CONFIG_CFG80211_CRDA_SUPPORT=y
CONFIG_CFG80211_WEXT=y
CONFIG_MAC80211=m
CONFIG_MAC80211_HAS_RC=y
CONFIG_MAC80211_RC_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT_MINSTREL=y
CONFIG_MAC80211_RC_DEFAULT="minstrel_ht"
# CONFIG_MAC80211_MESH is not set
# CONFIG_MAC80211_LEDS is not set
# CONFIG_MAC80211_DEBUGFS is not set
# CONFIG_MAC80211_MESSAGE_TRACING is not set
# CONFIG_MAC80211_DEBUG_MENU is not set
CONFIG_MAC80211_STA_HASH_MAX_SIZE=0
# CONFIG_RFKILL is not set
# CONFIG_NET_9P is not set
# CONFIG_CAIF is not set
# CONFIG_CEPH_LIB is not set
# CONFIG_NFC is not set
# CONFIG_PSAMPLE is not set
# CONFIG_NET_IFE is not set
# CONFIG_LWTUNNEL is not set
CONFIG_GRO_CELLS=y
CONFIG_NET_SELFTESTS=y
CONFIG_PAGE_POOL=y
# CONFIG_FAILOVER is not set
CONFIG_ETHTOOL_NETLINK=y

#
# Device Drivers
#
CONFIG_HAVE_PCI=y
# CONFIG_PCI is not set
# CONFIG_PCCARD is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_DEVTMPFS_SAFE is not set
CONFIG_STANDALONE=y
CONFIG_PREVENT_FIRMWARE_BUILD=y

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
CONFIG_FW_CACHE=y
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
# CONFIG_DEBUG_DRIVER is not set
# CONFIG_DEBUG_DEVRES is not set
# CONFIG_DEBUG_TEST_DRIVER_REMOVE is not set
# CONFIG_TEST_ASYNC_DRIVER_PROBE is not set
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_SOC_BUS=y
CONFIG_REGMAP=y
CONFIG_REGMAP_I2C=y
CONFIG_REGMAP_SPI=y
CONFIG_REGMAP_MMIO=y
CONFIG_REGMAP_IRQ=y
CONFIG_DMA_SHARED_BUFFER=y
# CONFIG_DMA_FENCE_TRACE is not set
CONFIG_GENERIC_ARCH_TOPOLOGY=y
# end of Generic Driver Options

#
# Bus devices
#
CONFIG_ARM_CCI=y
CONFIG_ARM_CCI400_COMMON=y
CONFIG_ARM_CCI400_PORT_CTRL=y
# CONFIG_BRCMSTB_GISB_ARB is not set
# CONFIG_MOXTET is not set
# CONFIG_SUN50I_DE2_BUS is not set
CONFIG_SUNXI_RSB=y
# CONFIG_VEXPRESS_CONFIG is not set
# CONFIG_MHI_BUS is not set
# end of Bus devices

# CONFIG_CONNECTOR is not set

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# CONFIG_ARM_SCMI_PROTOCOL is not set
# end of ARM System Control and Management Interface Protocol

# CONFIG_ARM_SCPI_PROTOCOL is not set
# CONFIG_FW_CFG_SYSFS is not set
# CONFIG_TRUSTED_FOUNDATIONS is not set
# CONFIG_GOOGLE_FIRMWARE is not set
CONFIG_ARM_PSCI_FW=y
CONFIG_HAVE_ARM_SMCCC=y
CONFIG_HAVE_ARM_SMCCC_DISCOVERY=y
CONFIG_ARM_SMCCC_SOC_ID=y

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
CONFIG_DTC=y
CONFIG_OF=y
# CONFIG_OF_UNITTEST is not set
CONFIG_OF_FLATTREE=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_KOBJ=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_IRQ=y
CONFIG_OF_RESERVED_MEM=y
# CONFIG_OF_OVERLAY is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
CONFIG_BLK_DEV=y
# CONFIG_BLK_DEV_NULL_BLK is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
# CONFIG_BLK_DEV_DRBD is not set
# CONFIG_BLK_DEV_NBD is not set
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_COUNT=16
CONFIG_BLK_DEV_RAM_SIZE=4096
# CONFIG_CDROM_PKTCDVD is not set
# CONFIG_ATA_OVER_ETH is not set
# CONFIG_BLK_DEV_RBD is not set

#
# NVME Support
#
# CONFIG_NVME_FC is not set
# CONFIG_NVME_TCP is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_AD525X_DPOT is not set
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ICS932S401 is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_APDS9802ALS is not set
# CONFIG_ISL29003 is not set
# CONFIG_ISL29020 is not set
# CONFIG_SENSORS_TSL2550 is not set
# CONFIG_SENSORS_BH1770 is not set
# CONFIG_SENSORS_APDS990X is not set
# CONFIG_HMC6352 is not set
# CONFIG_DS1682 is not set
# CONFIG_LATTICE_ECP3_CONFIG is not set
# CONFIG_SRAM is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_OPEN_DICE is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_AT24 is not set
# CONFIG_EEPROM_AT25 is not set
# CONFIG_EEPROM_LEGACY is not set
# CONFIG_EEPROM_MAX6875 is not set
# CONFIG_EEPROM_93CX6 is not set
# CONFIG_EEPROM_93XX46 is not set
# CONFIG_EEPROM_IDT_89HPESX is not set
# CONFIG_EEPROM_EE1004 is not set
# end of EEPROM support

#
# Texas Instruments shared transport line discipline
#
# CONFIG_TI_ST is not set
# end of Texas Instruments shared transport line discipline

# CONFIG_SENSORS_LIS3_SPI is not set
# CONFIG_SENSORS_LIS3_I2C is not set
# CONFIG_ALTERA_STAPL is not set
# CONFIG_ECHO is not set
# CONFIG_MISC_RTSX_USB is not set
# CONFIG_PVPANIC is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
CONFIG_SCSI_COMMON=y
CONFIG_SCSI=y
CONFIG_SCSI_DMA=y
CONFIG_SCSI_PROC_FS=y

#
# SCSI support type (disk, tape, CD-ROM)
#
CONFIG_BLK_DEV_SD=y
# CONFIG_CHR_DEV_ST is not set
# CONFIG_BLK_DEV_SR is not set
# CONFIG_CHR_DEV_SG is not set
CONFIG_BLK_DEV_BSG=y
# CONFIG_CHR_DEV_SCH is not set
# CONFIG_SCSI_CONSTANTS is not set
# CONFIG_SCSI_LOGGING is not set
# CONFIG_SCSI_SCAN_ASYNC is not set

#
# SCSI Transports
#
# CONFIG_SCSI_SPI_ATTRS is not set
# CONFIG_SCSI_FC_ATTRS is not set
# CONFIG_SCSI_ISCSI_ATTRS is not set
# CONFIG_SCSI_SAS_ATTRS is not set
# CONFIG_SCSI_SAS_LIBSAS is not set
# CONFIG_SCSI_SRP_ATTRS is not set
# end of SCSI Transports

CONFIG_SCSI_LOWLEVEL=y
# CONFIG_ISCSI_TCP is not set
# CONFIG_ISCSI_BOOT_SYSFS is not set
# CONFIG_SCSI_UFSHCD is not set
# CONFIG_SCSI_DEBUG is not set
# CONFIG_SCSI_DH is not set
# end of SCSI device support

CONFIG_ATA=y
CONFIG_SATA_HOST=y
CONFIG_ATA_VERBOSE_ERROR=y
CONFIG_ATA_FORCE=y
CONFIG_SATA_PMP=y

#
# Controllers with non-SFF native interface
#
# CONFIG_SATA_AHCI_PLATFORM is not set
# CONFIG_AHCI_CEVA is not set
CONFIG_AHCI_SUNXI=y
# CONFIG_AHCI_QORIQ is not set
CONFIG_ATA_SFF=y

#
# SFF controllers with custom DMA interface
#
CONFIG_ATA_BMDMA=y

#
# SATA SFF controllers with BMDMA
#
# CONFIG_SATA_DWC is not set

#
# PATA SFF controllers with BMDMA
#

#
# PIO-only SFF controllers
#

#
# Generic fallback / legacy drivers
#
CONFIG_MD=y
# CONFIG_BLK_DEV_MD is not set
# CONFIG_BCACHE is not set
CONFIG_BLK_DEV_DM_BUILTIN=y
CONFIG_BLK_DEV_DM=y
# CONFIG_DM_DEBUG is not set
# CONFIG_DM_UNSTRIPED is not set
CONFIG_DM_CRYPT=m
# CONFIG_DM_SNAPSHOT is not set
# CONFIG_DM_THIN_PROVISIONING is not set
# CONFIG_DM_CACHE is not set
# CONFIG_DM_WRITECACHE is not set
# CONFIG_DM_ERA is not set
# CONFIG_DM_CLONE is not set
# CONFIG_DM_MIRROR is not set
# CONFIG_DM_RAID is not set
# CONFIG_DM_ZERO is not set
# CONFIG_DM_MULTIPATH is not set
# CONFIG_DM_DELAY is not set
# CONFIG_DM_DUST is not set
# CONFIG_DM_INIT is not set
# CONFIG_DM_UEVENT is not set
# CONFIG_DM_FLAKEY is not set
# CONFIG_DM_VERITY is not set
# CONFIG_DM_SWITCH is not set
# CONFIG_DM_LOG_WRITES is not set
# CONFIG_DM_INTEGRITY is not set
# CONFIG_TARGET_CORE is not set
CONFIG_NETDEVICES=y
CONFIG_MII=y
CONFIG_NET_CORE=y
# CONFIG_BONDING is not set
# CONFIG_DUMMY is not set
# CONFIG_WIREGUARD is not set
# CONFIG_EQUALIZER is not set
# CONFIG_NET_TEAM is not set
# CONFIG_MACVLAN is not set
# CONFIG_IPVLAN is not set
# CONFIG_VXLAN is not set
# CONFIG_GENEVE is not set
# CONFIG_BAREUDP is not set
# CONFIG_GTP is not set
# CONFIG_MACSEC is not set
# CONFIG_NETCONSOLE is not set
# CONFIG_TUN is not set
# CONFIG_TUN_VNET_CROSS_LE is not set
# CONFIG_VETH is not set
# CONFIG_NLMON is not set
CONFIG_ETHERNET=y
CONFIG_NET_VENDOR_ALACRITECH=y
CONFIG_NET_VENDOR_ALLWINNER=y
CONFIG_SUN4I_EMAC=y
# CONFIG_ALTERA_TSE is not set
CONFIG_NET_VENDOR_AMAZON=y
CONFIG_NET_VENDOR_AQUANTIA=y
# CONFIG_NET_VENDOR_ARC is not set
CONFIG_NET_VENDOR_ASIX=y
# CONFIG_SPI_AX88796C is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
CONFIG_NET_VENDOR_CADENCE=y
# CONFIG_MACB is not set
CONFIG_NET_VENDOR_CAVIUM=y
# CONFIG_NET_VENDOR_CIRRUS is not set
CONFIG_NET_VENDOR_CORTINA=y
# CONFIG_GEMINI_ETHERNET is not set
CONFIG_NET_VENDOR_DAVICOM=y
# CONFIG_DM9000 is not set
# CONFIG_DM9051 is not set
# CONFIG_DNET is not set
CONFIG_NET_VENDOR_ENGLEDER=y
# CONFIG_TSNEP is not set
CONFIG_NET_VENDOR_EZCHIP=y
# CONFIG_EZCHIP_NPS_MANAGEMENT_ENET is not set
# CONFIG_NET_VENDOR_FARADAY is not set
CONFIG_NET_VENDOR_FUNGIBLE=y
CONFIG_NET_VENDOR_GOOGLE=y
CONFIG_NET_VENDOR_HISILICON=y
# CONFIG_HIX5HD2_GMAC is not set
# CONFIG_HISI_FEMAC is not set
# CONFIG_HIP04_ETH is not set
# CONFIG_HNS_DSAF is not set
# CONFIG_HNS_ENET is not set
CONFIG_NET_VENDOR_HUAWEI=y
# CONFIG_NET_VENDOR_INTEL is not set
CONFIG_NET_VENDOR_MICROSOFT=y
CONFIG_NET_VENDOR_LITEX=y
# CONFIG_LITEX_LITEETH is not set
# CONFIG_NET_VENDOR_MARVELL is not set
CONFIG_NET_VENDOR_MELLANOX=y
# CONFIG_MLXSW_CORE is not set
# CONFIG_MLXFW is not set
# CONFIG_NET_VENDOR_MICREL is not set
# CONFIG_NET_VENDOR_MICROCHIP is not set
CONFIG_NET_VENDOR_MICROSEMI=y
# CONFIG_NET_VENDOR_NATSEMI is not set
CONFIG_NET_VENDOR_NETRONOME=y
CONFIG_NET_VENDOR_NI=y
# CONFIG_NI_XGE_MANAGEMENT_ENET is not set
# CONFIG_ETHOC is not set
CONFIG_NET_VENDOR_PENSANDO=y
CONFIG_NET_VENDOR_QUALCOMM=y
# CONFIG_QCA7000_SPI is not set
# CONFIG_QCOM_EMAC is not set
# CONFIG_RMNET is not set
CONFIG_NET_VENDOR_RENESAS=y
CONFIG_NET_VENDOR_ROCKER=y
# CONFIG_NET_VENDOR_SAMSUNG is not set
# CONFIG_NET_VENDOR_SEEQ is not set
CONFIG_NET_VENDOR_SOLARFLARE=y
# CONFIG_NET_VENDOR_SMSC is not set
CONFIG_NET_VENDOR_SOCIONEXT=y
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=y
# CONFIG_STMMAC_SELFTESTS is not set
CONFIG_STMMAC_PLATFORM=y
# CONFIG_DWMAC_DWC_QOS_ETH is not set
CONFIG_DWMAC_GENERIC=y
CONFIG_DWMAC_SUNXI=y
CONFIG_DWMAC_SUN8I=y
# CONFIG_DWMAC_INTEL_PLAT is not set
CONFIG_NET_VENDOR_SYNOPSYS=y
# CONFIG_DWC_XLGMAC is not set
CONFIG_NET_VENDOR_VERTEXCOM=y
# CONFIG_MSE102X is not set
# CONFIG_NET_VENDOR_VIA is not set
# CONFIG_NET_VENDOR_WIZNET is not set
CONFIG_NET_VENDOR_XILINX=y
# CONFIG_XILINX_EMACLITE is not set
# CONFIG_XILINX_AXI_EMAC is not set
# CONFIG_XILINX_LL_TEMAC is not set
CONFIG_PHYLINK=y
CONFIG_PHYLIB=y
CONFIG_SWPHY=y
# CONFIG_LED_TRIGGER_PHY is not set
CONFIG_FIXED_PHY=y
# CONFIG_SFP is not set

#
# MII PHY device drivers
#
# CONFIG_AMD_PHY is not set
# CONFIG_ADIN_PHY is not set
# CONFIG_AQUANTIA_PHY is not set
# CONFIG_AX88796B_PHY is not set
# CONFIG_BROADCOM_PHY is not set
# CONFIG_BCM54140_PHY is not set
# CONFIG_BCM7XXX_PHY is not set
# CONFIG_BCM84881_PHY is not set
# CONFIG_BCM87XX_PHY is not set
# CONFIG_CICADA_PHY is not set
# CONFIG_CORTINA_PHY is not set
# CONFIG_DAVICOM_PHY is not set
# CONFIG_ICPLUS_PHY is not set
# CONFIG_LXT_PHY is not set
# CONFIG_INTEL_XWAY_PHY is not set
# CONFIG_LSI_ET1011C_PHY is not set
# CONFIG_MARVELL_PHY is not set
# CONFIG_MARVELL_10G_PHY is not set
# CONFIG_MARVELL_88X2222_PHY is not set
# CONFIG_MAXLINEAR_GPHY is not set
# CONFIG_MEDIATEK_GE_PHY is not set
CONFIG_MICREL_PHY=y
# CONFIG_MICROCHIP_PHY is not set
# CONFIG_MICROCHIP_T1_PHY is not set
# CONFIG_MICROSEMI_PHY is not set
# CONFIG_MOTORCOMM_PHY is not set
# CONFIG_NATIONAL_PHY is not set
# CONFIG_NXP_C45_TJA11XX_PHY is not set
# CONFIG_NXP_TJA11XX_PHY is not set
# CONFIG_AT803X_PHY is not set
# CONFIG_QSEMI_PHY is not set
CONFIG_REALTEK_PHY=y
# CONFIG_RENESAS_PHY is not set
# CONFIG_ROCKCHIP_PHY is not set
# CONFIG_SMSC_PHY is not set
# CONFIG_STE10XP is not set
# CONFIG_TERANETICS_PHY is not set
# CONFIG_DP83822_PHY is not set
# CONFIG_DP83TC811_PHY is not set
# CONFIG_DP83848_PHY is not set
# CONFIG_DP83867_PHY is not set
# CONFIG_DP83869_PHY is not set
# CONFIG_VITESSE_PHY is not set
# CONFIG_XILINX_GMII2RGMII is not set
# CONFIG_MICREL_KS8995MA is not set
CONFIG_MDIO_DEVICE=y
CONFIG_MDIO_BUS=y
CONFIG_FWNODE_MDIO=y
CONFIG_OF_MDIO=y
CONFIG_MDIO_DEVRES=y
CONFIG_MDIO_SUN4I=y
# CONFIG_MDIO_BITBANG is not set
# CONFIG_MDIO_BCM_UNIMAC is not set
# CONFIG_MDIO_HISI_FEMAC is not set
# CONFIG_MDIO_MVUSB is not set
# CONFIG_MDIO_MSCC_MIIM is not set
# CONFIG_MDIO_IPQ4019 is not set
# CONFIG_MDIO_IPQ8064 is not set

#
# MDIO Multiplexers
#
CONFIG_MDIO_BUS_MUX=y
# CONFIG_MDIO_BUS_MUX_GPIO is not set
# CONFIG_MDIO_BUS_MUX_MULTIPLEXER is not set
# CONFIG_MDIO_BUS_MUX_MMIOREG is not set

#
# PCS device drivers
#
CONFIG_PCS_XPCS=y
# end of PCS device drivers

# CONFIG_PPP is not set
# CONFIG_SLIP is not set
CONFIG_USB_NET_DRIVERS=y
# CONFIG_USB_CATC is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_RTL8152 is not set
# CONFIG_USB_LAN78XX is not set
# CONFIG_USB_USBNET is not set
# CONFIG_USB_IPHETH is not set
CONFIG_WLAN=y
# CONFIG_WLAN_VENDOR_ADMTEK is not set
# CONFIG_WLAN_VENDOR_ATH is not set
# CONFIG_WLAN_VENDOR_ATMEL is not set
CONFIG_WLAN_VENDOR_BROADCOM=y
# CONFIG_B43 is not set
# CONFIG_B43LEGACY is not set
CONFIG_BRCMUTIL=m
# CONFIG_BRCMSMAC is not set
CONFIG_BRCMFMAC=m
CONFIG_BRCMFMAC_PROTO_BCDC=y
CONFIG_BRCMFMAC_SDIO=y
# CONFIG_BRCMFMAC_USB is not set
# CONFIG_BRCM_TRACING is not set
# CONFIG_BRCMDBG is not set
# CONFIG_WLAN_VENDOR_CISCO is not set
# CONFIG_WLAN_VENDOR_INTEL is not set
# CONFIG_WLAN_VENDOR_INTERSIL is not set
# CONFIG_WLAN_VENDOR_MARVELL is not set
# CONFIG_WLAN_VENDOR_MEDIATEK is not set
# CONFIG_WLAN_VENDOR_MICROCHIP is not set
# CONFIG_WLAN_VENDOR_RALINK is not set
# CONFIG_WLAN_VENDOR_REALTEK is not set
# CONFIG_WLAN_VENDOR_RSI is not set
# CONFIG_WLAN_VENDOR_ST is not set
# CONFIG_WLAN_VENDOR_TI is not set
# CONFIG_WLAN_VENDOR_ZYDAS is not set
# CONFIG_WLAN_VENDOR_QUANTENNA is not set
# CONFIG_MAC80211_HWSIM is not set
# CONFIG_USB_NET_RNDIS_WLAN is not set
# CONFIG_VIRT_WIFI is not set
# CONFIG_WAN is not set

#
# Wireless WAN
#
# CONFIG_WWAN is not set
# end of Wireless WAN

# CONFIG_NETDEVSIM is not set
# CONFIG_NET_FAILOVER is not set
# CONFIG_ISDN is not set

#
# Input device support
#
CONFIG_INPUT=y
CONFIG_INPUT_LEDS=y
CONFIG_INPUT_FF_MEMLESS=y
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
CONFIG_INPUT_KEYBOARD=y
# CONFIG_KEYBOARD_ADC is not set
# CONFIG_KEYBOARD_ADP5588 is not set
# CONFIG_KEYBOARD_ADP5589 is not set
CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1050 is not set
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_DLINK_DIR685 is not set
# CONFIG_KEYBOARD_LKKBD is not set
# CONFIG_KEYBOARD_GPIO is not set
# CONFIG_KEYBOARD_GPIO_POLLED is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
# CONFIG_KEYBOARD_MATRIX is not set
# CONFIG_KEYBOARD_LM8323 is not set
# CONFIG_KEYBOARD_LM8333 is not set
# CONFIG_KEYBOARD_MAX7359 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_MPR121 is not set
# CONFIG_KEYBOARD_NEWTON is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_STOWAWAY is not set
# CONFIG_KEYBOARD_SUNKBD is not set
CONFIG_KEYBOARD_SUN4I_LRADC=y
# CONFIG_KEYBOARD_OMAP4 is not set
# CONFIG_KEYBOARD_TM2_TOUCHKEY is not set
# CONFIG_KEYBOARD_XTKBD is not set
# CONFIG_KEYBOARD_CAP11XX is not set
# CONFIG_KEYBOARD_BCM is not set
# CONFIG_KEYBOARD_CYPRESS_SF is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
CONFIG_INPUT_TOUCHSCREEN=y
# CONFIG_TOUCHSCREEN_ADS7846 is not set
# CONFIG_TOUCHSCREEN_AD7877 is not set
# CONFIG_TOUCHSCREEN_AD7879 is not set
# CONFIG_TOUCHSCREEN_ADC is not set
# CONFIG_TOUCHSCREEN_AR1021_I2C is not set
# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_TOUCHSCREEN_BU21013 is not set
# CONFIG_TOUCHSCREEN_BU21029 is not set
# CONFIG_TOUCHSCREEN_CHIPONE_ICN8318 is not set
# CONFIG_TOUCHSCREEN_CY8CTMA140 is not set
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
# CONFIG_TOUCHSCREEN_CYTTSP_CORE is not set
# CONFIG_TOUCHSCREEN_CYTTSP4_CORE is not set
# CONFIG_TOUCHSCREEN_DYNAPRO is not set
# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
# CONFIG_TOUCHSCREEN_EETI is not set
# CONFIG_TOUCHSCREEN_EGALAX is not set
# CONFIG_TOUCHSCREEN_EGALAX_SERIAL is not set
# CONFIG_TOUCHSCREEN_EXC3000 is not set
# CONFIG_TOUCHSCREEN_FUJITSU is not set
# CONFIG_TOUCHSCREEN_GOODIX is not set
# CONFIG_TOUCHSCREEN_HIDEEP is not set
# CONFIG_TOUCHSCREEN_HYCON_HY46XX is not set
# CONFIG_TOUCHSCREEN_ILI210X is not set
# CONFIG_TOUCHSCREEN_ILITEK is not set
# CONFIG_TOUCHSCREEN_S6SY761 is not set
# CONFIG_TOUCHSCREEN_GUNZE is not set
# CONFIG_TOUCHSCREEN_EKTF2127 is not set
# CONFIG_TOUCHSCREEN_ELAN is not set
# CONFIG_TOUCHSCREEN_ELO is not set
# CONFIG_TOUCHSCREEN_WACOM_W8001 is not set
# CONFIG_TOUCHSCREEN_WACOM_I2C is not set
# CONFIG_TOUCHSCREEN_MAX11801 is not set
# CONFIG_TOUCHSCREEN_MCS5000 is not set
# CONFIG_TOUCHSCREEN_MMS114 is not set
# CONFIG_TOUCHSCREEN_MELFAS_MIP4 is not set
# CONFIG_TOUCHSCREEN_MSG2638 is not set
# CONFIG_TOUCHSCREEN_MTOUCH is not set
# CONFIG_TOUCHSCREEN_IMX6UL_TSC is not set
# CONFIG_TOUCHSCREEN_INEXIO is not set
# CONFIG_TOUCHSCREEN_MK712 is not set
# CONFIG_TOUCHSCREEN_PENMOUNT is not set
# CONFIG_TOUCHSCREEN_EDT_FT5X06 is not set
# CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set
# CONFIG_TOUCHSCREEN_TOUCHWIN is not set
# CONFIG_TOUCHSCREEN_PIXCIR is not set
# CONFIG_TOUCHSCREEN_WDT87XX_I2C is not set
# CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set
# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set
# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
# CONFIG_TOUCHSCREEN_TSC2004 is not set
# CONFIG_TOUCHSCREEN_TSC2005 is not set
# CONFIG_TOUCHSCREEN_TSC2007 is not set
# CONFIG_TOUCHSCREEN_RM_TS is not set
# CONFIG_TOUCHSCREEN_SILEAD is not set
# CONFIG_TOUCHSCREEN_SIS_I2C is not set
# CONFIG_TOUCHSCREEN_ST1232 is not set
# CONFIG_TOUCHSCREEN_STMFTS is not set
CONFIG_TOUCHSCREEN_SUN4I=y
# CONFIG_TOUCHSCREEN_SURFACE3_SPI is not set
# CONFIG_TOUCHSCREEN_SX8654 is not set
# CONFIG_TOUCHSCREEN_TPS6507X is not set
# CONFIG_TOUCHSCREEN_ZET6223 is not set
# CONFIG_TOUCHSCREEN_ZFORCE is not set
# CONFIG_TOUCHSCREEN_ROHM_BU21023 is not set
# CONFIG_TOUCHSCREEN_IQS5XX is not set
# CONFIG_TOUCHSCREEN_ZINITIX is not set
CONFIG_INPUT_MISC=y
# CONFIG_INPUT_AD714X is not set
# CONFIG_INPUT_ATMEL_CAPTOUCH is not set
# CONFIG_INPUT_BMA150 is not set
# CONFIG_INPUT_E3X0_BUTTON is not set
# CONFIG_INPUT_MMA8450 is not set
# CONFIG_INPUT_GPIO_BEEPER is not set
# CONFIG_INPUT_GPIO_DECODER is not set
# CONFIG_INPUT_GPIO_VIBRA is not set
# CONFIG_INPUT_ATI_REMOTE2 is not set
# CONFIG_INPUT_KEYSPAN_REMOTE is not set
# CONFIG_INPUT_KXTJ9 is not set
# CONFIG_INPUT_POWERMATE is not set
# CONFIG_INPUT_YEALINK is not set
# CONFIG_INPUT_CM109 is not set
# CONFIG_INPUT_REGULATOR_HAPTIC is not set
CONFIG_INPUT_AXP20X_PEK=y
# CONFIG_INPUT_UINPUT is not set
# CONFIG_INPUT_PCF8574 is not set
# CONFIG_INPUT_PWM_BEEPER is not set
# CONFIG_INPUT_PWM_VIBRA is not set
# CONFIG_INPUT_GPIO_ROTARY_ENCODER is not set
# CONFIG_INPUT_DA7280_HAPTICS is not set
# CONFIG_INPUT_ADXL34X is not set
# CONFIG_INPUT_IMS_PCU is not set
# CONFIG_INPUT_IQS269A is not set
# CONFIG_INPUT_IQS626A is not set
# CONFIG_INPUT_CMA3000 is not set
# CONFIG_INPUT_DRV260X_HAPTICS is not set
# CONFIG_INPUT_DRV2665_HAPTICS is not set
# CONFIG_INPUT_DRV2667_HAPTICS is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
CONFIG_SERIO=y
CONFIG_SERIO_SERPORT=y
CONFIG_SERIO_LIBPS2=y
# CONFIG_SERIO_RAW is not set
# CONFIG_SERIO_ALTERA_PS2 is not set
# CONFIG_SERIO_PS2MULT is not set
# CONFIG_SERIO_ARC_PS2 is not set
# CONFIG_SERIO_APBPS2 is not set
CONFIG_SERIO_SUN4I_PS2=y
# CONFIG_SERIO_GPIO_PS2 is not set
# CONFIG_USERIO is not set
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_VT_CONSOLE_SLEEP=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
CONFIG_LEGACY_PTYS=y
CONFIG_LEGACY_PTY_COUNT=256
CONFIG_LDISC_AUTOLOAD=y

#
# Serial drivers
#
CONFIG_SERIAL_EARLYCON=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y
CONFIG_SERIAL_8250_16550A_VARIANTS=y
# CONFIG_SERIAL_8250_FINTEK is not set
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_DMA=y
CONFIG_SERIAL_8250_NR_UARTS=8
CONFIG_SERIAL_8250_RUNTIME_UARTS=8
# CONFIG_SERIAL_8250_EXTENDED is not set
# CONFIG_SERIAL_8250_ASPEED_VUART is not set
CONFIG_SERIAL_8250_DWLIB=y
CONFIG_SERIAL_8250_FSL=y
CONFIG_SERIAL_8250_DW=y
# CONFIG_SERIAL_8250_RT288X is not set
CONFIG_SERIAL_OF_PLATFORM=y

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_EARLYCON_ARM_SEMIHOST is not set
# CONFIG_SERIAL_MAX3100 is not set
# CONFIG_SERIAL_MAX310X is not set
# CONFIG_SERIAL_UARTLITE is not set
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
# CONFIG_SERIAL_SIFIVE is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_SC16IS7XX is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_XILINX_PS_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_CONEXANT_DIGICOLOR is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_SERIAL_SPRD is not set
# CONFIG_SERIAL_SUNPLUS is not set
# end of Serial drivers

CONFIG_SERIAL_MCTRL_GPIO=y
# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_N_GSM is not set
# CONFIG_NULL_TTY is not set
# CONFIG_HVC_DCC is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_TIMERIOMEM is not set
# CONFIG_HW_RANDOM_BA431 is not set
# CONFIG_HW_RANDOM_CCTRNG is not set
# CONFIG_HW_RANDOM_XIPHERA is not set
CONFIG_HW_RANDOM_ARM_SMCCC_TRNG=m
CONFIG_DEVMEM=y
# CONFIG_TCG_TPM is not set
# CONFIG_XILLYBUS is not set
# CONFIG_XILLYUSB is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# end of Character devices

#
# I2C support
#
CONFIG_I2C=y
CONFIG_I2C_BOARDINFO=y
CONFIG_I2C_COMPAT=y
CONFIG_I2C_CHARDEV=y
CONFIG_I2C_MUX=y

#
# Multiplexer I2C Chip support
#
# CONFIG_I2C_ARB_GPIO_CHALLENGE is not set
# CONFIG_I2C_MUX_GPIO is not set
# CONFIG_I2C_MUX_GPMUX is not set
# CONFIG_I2C_MUX_LTC4306 is not set
# CONFIG_I2C_MUX_PCA9541 is not set
# CONFIG_I2C_MUX_PCA954x is not set
# CONFIG_I2C_MUX_PINCTRL is not set
# CONFIG_I2C_MUX_REG is not set
# CONFIG_I2C_DEMUX_PINCTRL is not set
# CONFIG_I2C_MUX_MLXCPLD is not set
# end of Multiplexer I2C Chip support

CONFIG_I2C_HELPER_AUTO=y

#
# I2C Hardware Bus support
#

#
# I2C system bus drivers (mostly embedded / system-on-chip)
#
# CONFIG_I2C_CBUS_GPIO is not set
# CONFIG_I2C_DESIGNWARE_PLATFORM is not set
# CONFIG_I2C_EMEV2 is not set
# CONFIG_I2C_GPIO is not set
CONFIG_I2C_MV64XXX=y
# CONFIG_I2C_OCORES is not set
# CONFIG_I2C_PCA_PLATFORM is not set
# CONFIG_I2C_RK3X is not set
# CONFIG_I2C_SIMTEC is not set
CONFIG_I2C_SUN6I_P2WI=y
# CONFIG_I2C_XILINX is not set

#
# External I2C/SMBus adapter drivers
#
# CONFIG_I2C_DIOLAN_U2C is not set
# CONFIG_I2C_CP2615 is not set
# CONFIG_I2C_ROBOTFUZZ_OSIF is not set
# CONFIG_I2C_TAOS_EVM is not set
# CONFIG_I2C_TINY_USB is not set

#
# Other I2C/SMBus bus drivers
#
# CONFIG_I2C_VIRTIO is not set
# end of I2C Hardware Bus support

# CONFIG_I2C_STUB is not set
# CONFIG_I2C_SLAVE is not set
# CONFIG_I2C_DEBUG_CORE is not set
# CONFIG_I2C_DEBUG_ALGO is not set
# CONFIG_I2C_DEBUG_BUS is not set
# end of I2C support

# CONFIG_I3C is not set
CONFIG_SPI=y
# CONFIG_SPI_DEBUG is not set
CONFIG_SPI_MASTER=y
# CONFIG_SPI_MEM is not set

#
# SPI Master Controller Drivers
#
# CONFIG_SPI_ALTERA is not set
# CONFIG_SPI_AXI_SPI_ENGINE is not set
# CONFIG_SPI_BITBANG is not set
# CONFIG_SPI_CADENCE is not set
# CONFIG_SPI_CADENCE_QUADSPI is not set
# CONFIG_SPI_DESIGNWARE is not set
# CONFIG_SPI_NXP_FLEXSPI is not set
# CONFIG_SPI_GPIO is not set
# CONFIG_SPI_FSL_SPI is not set
# CONFIG_SPI_OC_TINY is not set
# CONFIG_SPI_ROCKCHIP is not set
# CONFIG_SPI_SC18IS602 is not set
# CONFIG_SPI_SIFIVE is not set
CONFIG_SPI_SUN4I=y
CONFIG_SPI_SUN6I=y
# CONFIG_SPI_MXIC is not set
# CONFIG_SPI_XCOMM is not set
# CONFIG_SPI_XILINX is not set
# CONFIG_SPI_ZYNQMP_GQSPI is not set
# CONFIG_SPI_AMD is not set

#
# SPI Multiplexer support
#
# CONFIG_SPI_MUX is not set

#
# SPI Protocol Masters
#
# CONFIG_SPI_SPIDEV is not set
# CONFIG_SPI_LOOPBACK_TEST is not set
# CONFIG_SPI_TLE62X0 is not set
# CONFIG_SPI_SLAVE is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
CONFIG_PPS=y
# CONFIG_PPS_DEBUG is not set

#
# PPS clients support
#
# CONFIG_PPS_CLIENT_KTIMER is not set
# CONFIG_PPS_CLIENT_LDISC is not set
# CONFIG_PPS_CLIENT_GPIO is not set

#
# PPS generators support
#

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK=y
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
CONFIG_PTP_1588_CLOCK_KVM=y
# CONFIG_PTP_1588_CLOCK_IDT82P33 is not set
# CONFIG_PTP_1588_CLOCK_IDTCM is not set
# end of PTP clock support

CONFIG_PINCTRL=y
CONFIG_PINMUX=y
CONFIG_PINCONF=y
CONFIG_GENERIC_PINCONF=y
# CONFIG_DEBUG_PINCTRL is not set
# CONFIG_PINCTRL_AXP209 is not set
# CONFIG_PINCTRL_MCP23S08 is not set
# CONFIG_PINCTRL_MICROCHIP_SGPIO is not set
# CONFIG_PINCTRL_OCELOT is not set
# CONFIG_PINCTRL_SINGLE is not set
# CONFIG_PINCTRL_STMFX is not set
# CONFIG_PINCTRL_SX150X is not set

#
# Renesas pinctrl drivers
#
# end of Renesas pinctrl drivers

CONFIG_PINCTRL_SUNXI=y
CONFIG_PINCTRL_SUN4I_A10=y
CONFIG_PINCTRL_SUN5I=y
CONFIG_PINCTRL_SUN6I_A31=y
CONFIG_PINCTRL_SUN6I_A31_R=y
CONFIG_PINCTRL_SUN8I_A23=y
CONFIG_PINCTRL_SUN8I_A33=y
CONFIG_PINCTRL_SUN8I_A83T=y
CONFIG_PINCTRL_SUN8I_A83T_R=y
CONFIG_PINCTRL_SUN8I_A23_R=y
CONFIG_PINCTRL_SUN8I_H3=y
CONFIG_PINCTRL_SUN8I_H3_R=y
CONFIG_PINCTRL_SUN8I_V3S=y
CONFIG_PINCTRL_SUN9I_A80=y
CONFIG_PINCTRL_SUN9I_A80_R=y
# CONFIG_PINCTRL_SUN50I_A64 is not set
# CONFIG_PINCTRL_SUN50I_A64_R is not set
# CONFIG_PINCTRL_SUN50I_A100 is not set
# CONFIG_PINCTRL_SUN50I_A100_R is not set
# CONFIG_PINCTRL_SUN50I_H5 is not set
# CONFIG_PINCTRL_SUN50I_H6 is not set
# CONFIG_PINCTRL_SUN50I_H6_R is not set
# CONFIG_PINCTRL_SUN50I_H616 is not set
# CONFIG_PINCTRL_SUN50I_H616_R is not set
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_GPIOLIB=y
CONFIG_GPIOLIB_FASTPATH_LIMIT=512
CONFIG_OF_GPIO=y
# CONFIG_DEBUG_GPIO is not set
CONFIG_GPIO_CDEV=y
CONFIG_GPIO_CDEV_V1=y

#
# Memory mapped GPIO drivers
#
# CONFIG_GPIO_74XX_MMIO is not set
# CONFIG_GPIO_ALTERA is not set
# CONFIG_GPIO_CADENCE is not set
# CONFIG_GPIO_DWAPB is not set
# CONFIG_GPIO_FTGPIO010 is not set
# CONFIG_GPIO_GENERIC_PLATFORM is not set
# CONFIG_GPIO_GRGPIO is not set
# CONFIG_GPIO_HLWD is not set
# CONFIG_GPIO_LOGICVC is not set
# CONFIG_GPIO_MB86S7X is not set
# CONFIG_GPIO_MPC8XXX is not set
# CONFIG_GPIO_SAMA5D2_PIOBU is not set
# CONFIG_GPIO_SIFIVE is not set
# CONFIG_GPIO_SYSCON is not set
# CONFIG_GPIO_XILINX is not set
# CONFIG_GPIO_ZEVIO is not set
# CONFIG_GPIO_AMD_FCH is not set
# end of Memory mapped GPIO drivers

#
# I2C GPIO expanders
#
# CONFIG_GPIO_ADP5588 is not set
# CONFIG_GPIO_ADNP is not set
# CONFIG_GPIO_GW_PLD is not set
# CONFIG_GPIO_MAX7300 is not set
# CONFIG_GPIO_MAX732X is not set
# CONFIG_GPIO_PCA953X is not set
# CONFIG_GPIO_PCA9570 is not set
# CONFIG_GPIO_PCF857X is not set
# CONFIG_GPIO_TPIC2810 is not set
# end of I2C GPIO expanders

#
# MFD GPIO expanders
#
# CONFIG_HTC_EGPIO is not set
# end of MFD GPIO expanders

#
# SPI GPIO expanders
#
# CONFIG_GPIO_74X164 is not set
# CONFIG_GPIO_MAX3191X is not set
# CONFIG_GPIO_MAX7301 is not set
# CONFIG_GPIO_MC33880 is not set
# CONFIG_GPIO_PISOSR is not set
# CONFIG_GPIO_XRA1403 is not set
# end of SPI GPIO expanders

#
# USB GPIO expanders
#
# end of USB GPIO expanders

#
# Virtual GPIO drivers
#
# CONFIG_GPIO_AGGREGATOR is not set
# CONFIG_GPIO_MOCKUP is not set
# CONFIG_GPIO_SIM is not set
# end of Virtual GPIO drivers

# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
CONFIG_POWER_SUPPLY=y
# CONFIG_POWER_SUPPLY_DEBUG is not set
CONFIG_POWER_SUPPLY_HWMON=y
# CONFIG_PDA_POWER is not set
# CONFIG_GENERIC_ADC_BATTERY is not set
# CONFIG_TEST_POWER is not set
# CONFIG_CHARGER_ADP5061 is not set
# CONFIG_BATTERY_CW2015 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_DS2781 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SAMSUNG_SDI is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_CHARGER_SBS is not set
# CONFIG_MANAGER_SBS is not set
# CONFIG_BATTERY_BQ27XXX is not set
CONFIG_CHARGER_AXP20X=y
CONFIG_BATTERY_AXP20X=y
CONFIG_AXP20X_POWER=y
# CONFIG_BATTERY_MAX17040 is not set
# CONFIG_BATTERY_MAX17042 is not set
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_CHARGER_LT3651 is not set
# CONFIG_CHARGER_LTC4162L is not set
# CONFIG_CHARGER_DETECTOR_MAX14656 is not set
# CONFIG_CHARGER_MAX77976 is not set
# CONFIG_CHARGER_BQ2415X is not set
# CONFIG_CHARGER_BQ24190 is not set
# CONFIG_CHARGER_BQ24257 is not set
# CONFIG_CHARGER_BQ24735 is not set
# CONFIG_CHARGER_BQ2515X is not set
# CONFIG_CHARGER_BQ25890 is not set
# CONFIG_CHARGER_BQ25980 is not set
# CONFIG_CHARGER_BQ256XX is not set
# CONFIG_CHARGER_SMB347 is not set
# CONFIG_BATTERY_GAUGE_LTC2941 is not set
# CONFIG_BATTERY_GOLDFISH is not set
# CONFIG_BATTERY_RT5033 is not set
# CONFIG_CHARGER_RT9455 is not set
# CONFIG_CHARGER_UCS1002 is not set
# CONFIG_CHARGER_BD99954 is not set
# CONFIG_BATTERY_UG3105 is not set
CONFIG_HWMON=y
# CONFIG_HWMON_DEBUG_CHIP is not set

#
# Native drivers
#
# CONFIG_SENSORS_AD7314 is not set
# CONFIG_SENSORS_AD7414 is not set
# CONFIG_SENSORS_AD7418 is not set
# CONFIG_SENSORS_ADM1021 is not set
# CONFIG_SENSORS_ADM1025 is not set
# CONFIG_SENSORS_ADM1026 is not set
# CONFIG_SENSORS_ADM1029 is not set
# CONFIG_SENSORS_ADM1031 is not set
# CONFIG_SENSORS_ADM1177 is not set
# CONFIG_SENSORS_ADM9240 is not set
# CONFIG_SENSORS_ADT7310 is not set
# CONFIG_SENSORS_ADT7410 is not set
# CONFIG_SENSORS_ADT7411 is not set
# CONFIG_SENSORS_ADT7462 is not set
# CONFIG_SENSORS_ADT7470 is not set
# CONFIG_SENSORS_ADT7475 is not set
# CONFIG_SENSORS_AHT10 is not set
# CONFIG_SENSORS_AQUACOMPUTER_D5NEXT is not set
# CONFIG_SENSORS_AS370 is not set
# CONFIG_SENSORS_ASC7621 is not set
# CONFIG_SENSORS_AXI_FAN_CONTROL is not set
# CONFIG_SENSORS_ASPEED is not set
# CONFIG_SENSORS_ATXP1 is not set
# CONFIG_SENSORS_CORSAIR_CPRO is not set
# CONFIG_SENSORS_CORSAIR_PSU is not set
# CONFIG_SENSORS_DRIVETEMP is not set
# CONFIG_SENSORS_DS620 is not set
# CONFIG_SENSORS_DS1621 is not set
# CONFIG_SENSORS_F71805F is not set
# CONFIG_SENSORS_F71882FG is not set
# CONFIG_SENSORS_F75375S is not set
# CONFIG_SENSORS_FTSTEUTATES is not set
# CONFIG_SENSORS_GL518SM is not set
# CONFIG_SENSORS_GL520SM is not set
# CONFIG_SENSORS_G760A is not set
# CONFIG_SENSORS_G762 is not set
# CONFIG_SENSORS_GPIO_FAN is not set
# CONFIG_SENSORS_HIH6130 is not set
CONFIG_SENSORS_IIO_HWMON=y
# CONFIG_SENSORS_IT87 is not set
# CONFIG_SENSORS_JC42 is not set
# CONFIG_SENSORS_POWR1220 is not set
# CONFIG_SENSORS_LINEAGE is not set
# CONFIG_SENSORS_LTC2945 is not set
# CONFIG_SENSORS_LTC2947_I2C is not set
# CONFIG_SENSORS_LTC2947_SPI is not set
# CONFIG_SENSORS_LTC2990 is not set
# CONFIG_SENSORS_LTC2992 is not set
# CONFIG_SENSORS_LTC4151 is not set
# CONFIG_SENSORS_LTC4215 is not set
# CONFIG_SENSORS_LTC4222 is not set
# CONFIG_SENSORS_LTC4245 is not set
# CONFIG_SENSORS_LTC4260 is not set
# CONFIG_SENSORS_LTC4261 is not set
# CONFIG_SENSORS_MAX1111 is not set
# CONFIG_SENSORS_MAX127 is not set
# CONFIG_SENSORS_MAX16065 is not set
# CONFIG_SENSORS_MAX1619 is not set
# CONFIG_SENSORS_MAX1668 is not set
# CONFIG_SENSORS_MAX197 is not set
# CONFIG_SENSORS_MAX31722 is not set
# CONFIG_SENSORS_MAX31730 is not set
# CONFIG_SENSORS_MAX6620 is not set
# CONFIG_SENSORS_MAX6621 is not set
# CONFIG_SENSORS_MAX6639 is not set
# CONFIG_SENSORS_MAX6642 is not set
# CONFIG_SENSORS_MAX6650 is not set
# CONFIG_SENSORS_MAX6697 is not set
# CONFIG_SENSORS_MAX31790 is not set
# CONFIG_SENSORS_MCP3021 is not set
# CONFIG_SENSORS_TC654 is not set
# CONFIG_SENSORS_TPS23861 is not set
# CONFIG_SENSORS_MR75203 is not set
# CONFIG_SENSORS_ADCXX is not set
# CONFIG_SENSORS_LM63 is not set
# CONFIG_SENSORS_LM70 is not set
# CONFIG_SENSORS_LM73 is not set
# CONFIG_SENSORS_LM75 is not set
# CONFIG_SENSORS_LM77 is not set
# CONFIG_SENSORS_LM78 is not set
# CONFIG_SENSORS_LM80 is not set
# CONFIG_SENSORS_LM83 is not set
# CONFIG_SENSORS_LM85 is not set
# CONFIG_SENSORS_LM87 is not set
# CONFIG_SENSORS_LM90 is not set
# CONFIG_SENSORS_LM92 is not set
# CONFIG_SENSORS_LM93 is not set
# CONFIG_SENSORS_LM95234 is not set
# CONFIG_SENSORS_LM95241 is not set
# CONFIG_SENSORS_LM95245 is not set
# CONFIG_SENSORS_PC87360 is not set
# CONFIG_SENSORS_PC87427 is not set
# CONFIG_SENSORS_NTC_THERMISTOR is not set
# CONFIG_SENSORS_NCT6683 is not set
# CONFIG_SENSORS_NCT6775 is not set
# CONFIG_SENSORS_NCT7802 is not set
# CONFIG_SENSORS_NCT7904 is not set
# CONFIG_SENSORS_NPCM7XX is not set
# CONFIG_SENSORS_NZXT_KRAKEN2 is not set
# CONFIG_SENSORS_NZXT_SMART2 is not set
# CONFIG_SENSORS_OCC_P8_I2C is not set
# CONFIG_SENSORS_PCF8591 is not set
# CONFIG_PMBUS is not set
# CONFIG_SENSORS_PWM_FAN is not set
# CONFIG_SENSORS_SBTSI is not set
# CONFIG_SENSORS_SBRMI is not set
# CONFIG_SENSORS_SHT15 is not set
# CONFIG_SENSORS_SHT21 is not set
# CONFIG_SENSORS_SHT3x is not set
# CONFIG_SENSORS_SHT4x is not set
# CONFIG_SENSORS_SHTC1 is not set
# CONFIG_SENSORS_SY7636A is not set
# CONFIG_SENSORS_DME1737 is not set
# CONFIG_SENSORS_EMC1403 is not set
# CONFIG_SENSORS_EMC2103 is not set
# CONFIG_SENSORS_EMC6W201 is not set
# CONFIG_SENSORS_SMSC47M1 is not set
# CONFIG_SENSORS_SMSC47M192 is not set
# CONFIG_SENSORS_SMSC47B397 is not set
# CONFIG_SENSORS_SCH5627 is not set
# CONFIG_SENSORS_SCH5636 is not set
# CONFIG_SENSORS_STTS751 is not set
# CONFIG_SENSORS_SMM665 is not set
# CONFIG_SENSORS_ADC128D818 is not set
# CONFIG_SENSORS_ADS7828 is not set
# CONFIG_SENSORS_ADS7871 is not set
# CONFIG_SENSORS_AMC6821 is not set
# CONFIG_SENSORS_INA209 is not set
# CONFIG_SENSORS_INA2XX is not set
# CONFIG_SENSORS_INA238 is not set
# CONFIG_SENSORS_INA3221 is not set
# CONFIG_SENSORS_TC74 is not set
# CONFIG_SENSORS_THMC50 is not set
# CONFIG_SENSORS_TMP102 is not set
# CONFIG_SENSORS_TMP103 is not set
# CONFIG_SENSORS_TMP108 is not set
# CONFIG_SENSORS_TMP401 is not set
# CONFIG_SENSORS_TMP421 is not set
# CONFIG_SENSORS_TMP513 is not set
# CONFIG_SENSORS_VT1211 is not set
# CONFIG_SENSORS_W83773G is not set
# CONFIG_SENSORS_W83781D is not set
# CONFIG_SENSORS_W83791D is not set
# CONFIG_SENSORS_W83792D is not set
# CONFIG_SENSORS_W83793 is not set
# CONFIG_SENSORS_W83795 is not set
# CONFIG_SENSORS_W83L785TS is not set
# CONFIG_SENSORS_W83L786NG is not set
# CONFIG_SENSORS_W83627HF is not set
# CONFIG_SENSORS_W83627EHF is not set
CONFIG_THERMAL=y
# CONFIG_THERMAL_NETLINK is not set
# CONFIG_THERMAL_STATISTICS is not set
CONFIG_THERMAL_EMERGENCY_POWEROFF_DELAY_MS=0
CONFIG_THERMAL_HWMON=y
CONFIG_THERMAL_OF=y
# CONFIG_THERMAL_WRITABLE_TRIPS is not set
CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
# CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE is not set
# CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE is not set
# CONFIG_THERMAL_GOV_FAIR_SHARE is not set
CONFIG_THERMAL_GOV_STEP_WISE=y
# CONFIG_THERMAL_GOV_BANG_BANG is not set
# CONFIG_THERMAL_GOV_USER_SPACE is not set
CONFIG_CPU_THERMAL=y
CONFIG_CPU_FREQ_THERMAL=y
# CONFIG_DEVFREQ_THERMAL is not set
# CONFIG_THERMAL_EMULATION is not set
# CONFIG_THERMAL_MMIO is not set
CONFIG_SUN8I_THERMAL=y
CONFIG_GENERIC_ADC_THERMAL=y
CONFIG_WATCHDOG=y
CONFIG_WATCHDOG_CORE=y
# CONFIG_WATCHDOG_NOWAYOUT is not set
CONFIG_WATCHDOG_HANDLE_BOOT_ENABLED=y
CONFIG_WATCHDOG_OPEN_TIMEOUT=0
# CONFIG_WATCHDOG_SYSFS is not set
# CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT is not set

#
# Watchdog Pretimeout Governors
#
# CONFIG_WATCHDOG_PRETIMEOUT_GOV is not set

#
# Watchdog Device Drivers
#
# CONFIG_SOFT_WATCHDOG is not set
# CONFIG_GPIO_WATCHDOG is not set
# CONFIG_XILINX_WATCHDOG is not set
# CONFIG_ZIIRAVE_WATCHDOG is not set
# CONFIG_CADENCE_WATCHDOG is not set
# CONFIG_FTWDT010_WATCHDOG is not set
# CONFIG_DW_WATCHDOG is not set
CONFIG_SUNXI_WATCHDOG=y
# CONFIG_MAX63XX_WATCHDOG is not set
# CONFIG_ARM_SMC_WATCHDOG is not set
# CONFIG_MEN_A21_WDT is not set

#
# USB-based Watchdog Cards
#
# CONFIG_USBPCWATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
CONFIG_MFD_CORE=y
# CONFIG_MFD_ACT8945A is not set
# CONFIG_MFD_AS3711 is not set
# CONFIG_MFD_AS3722 is not set
# CONFIG_PMIC_ADP5520 is not set
# CONFIG_MFD_AAT2870_CORE is not set
# CONFIG_MFD_ATMEL_FLEXCOM is not set
# CONFIG_MFD_ATMEL_HLCDC is not set
# CONFIG_MFD_BCM590XX is not set
# CONFIG_MFD_BD9571MWV is not set
CONFIG_MFD_AC100=y
CONFIG_MFD_AXP20X=y
CONFIG_MFD_AXP20X_I2C=y
CONFIG_MFD_AXP20X_RSB=y
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_ASIC3 is not set
# CONFIG_PMIC_DA903X is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_DA9055 is not set
# CONFIG_MFD_DA9062 is not set
# CONFIG_MFD_DA9063 is not set
# CONFIG_MFD_DA9150 is not set
# CONFIG_MFD_DLN2 is not set
# CONFIG_MFD_GATEWORKS_GSC is not set
# CONFIG_MFD_MC13XXX_SPI is not set
# CONFIG_MFD_MC13XXX_I2C is not set
# CONFIG_MFD_MP2629 is not set
# CONFIG_MFD_HI6421_PMIC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_HTC_I2CPLD is not set
# CONFIG_MFD_IQS62X is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_88PM800 is not set
# CONFIG_MFD_88PM805 is not set
# CONFIG_MFD_88PM860X is not set
# CONFIG_MFD_MAX14577 is not set
# CONFIG_MFD_MAX77620 is not set
# CONFIG_MFD_MAX77650 is not set
# CONFIG_MFD_MAX77686 is not set
# CONFIG_MFD_MAX77693 is not set
# CONFIG_MFD_MAX77843 is not set
# CONFIG_MFD_MAX8907 is not set
# CONFIG_MFD_MAX8925 is not set
# CONFIG_MFD_MAX8997 is not set
# CONFIG_MFD_MAX8998 is not set
# CONFIG_MFD_MT6360 is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_MENF21BMC is not set
# CONFIG_EZX_PCAP is not set
# CONFIG_MFD_CPCAP is not set
# CONFIG_MFD_VIPERBOARD is not set
# CONFIG_MFD_NTXEC is not set
# CONFIG_MFD_RETU is not set
# CONFIG_MFD_PCF50633 is not set
# CONFIG_MFD_PM8XXX is not set
# CONFIG_MFD_RT4831 is not set
# CONFIG_MFD_RT5033 is not set
# CONFIG_MFD_RC5T583 is not set
# CONFIG_MFD_RK808 is not set
# CONFIG_MFD_RN5T618 is not set
# CONFIG_MFD_SEC_CORE is not set
# CONFIG_MFD_SI476X_CORE is not set
# CONFIG_MFD_SIMPLE_MFD_I2C is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_MFD_SKY81452 is not set
# CONFIG_MFD_STMPE is not set
CONFIG_MFD_SUN6I_PRCM=y
CONFIG_MFD_SYSCON=y
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_LP3943 is not set
# CONFIG_MFD_LP8788 is not set
# CONFIG_MFD_TI_LMU is not set
# CONFIG_MFD_PALMAS is not set
# CONFIG_TPS6105X is not set
# CONFIG_TPS65010 is not set
# CONFIG_TPS6507X is not set
# CONFIG_MFD_TPS65086 is not set
# CONFIG_MFD_TPS65090 is not set
# CONFIG_MFD_TPS65217 is not set
# CONFIG_MFD_TI_LP873X is not set
# CONFIG_MFD_TI_LP87565 is not set
# CONFIG_MFD_TPS65218 is not set
# CONFIG_MFD_TPS6586X is not set
# CONFIG_MFD_TPS65910 is not set
# CONFIG_MFD_TPS65912_I2C is not set
# CONFIG_MFD_TPS65912_SPI is not set
# CONFIG_TWL4030_CORE is not set
# CONFIG_TWL6040_CORE is not set
# CONFIG_MFD_WL1273_CORE is not set
# CONFIG_MFD_LM3533 is not set
# CONFIG_MFD_TC3589X is not set
# CONFIG_MFD_T7L66XB is not set
# CONFIG_MFD_TC6387XB is not set
# CONFIG_MFD_TC6393XB is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_LOCHNAGAR is not set
# CONFIG_MFD_ARIZONA_I2C is not set
# CONFIG_MFD_ARIZONA_SPI is not set
# CONFIG_MFD_WM8400 is not set
# CONFIG_MFD_WM831X_I2C is not set
# CONFIG_MFD_WM831X_SPI is not set
# CONFIG_MFD_WM8350_I2C is not set
# CONFIG_MFD_WM8994 is not set
# CONFIG_MFD_ROHM_BD718XX is not set
# CONFIG_MFD_ROHM_BD71828 is not set
# CONFIG_MFD_ROHM_BD957XMUF is not set
# CONFIG_MFD_STPMIC1 is not set
# CONFIG_MFD_STMFX is not set
# CONFIG_MFD_ATC260X_I2C is not set
# CONFIG_MFD_QCOM_PM8008 is not set
# CONFIG_MFD_INTEL_M10_BMC is not set
# CONFIG_MFD_RSMU_I2C is not set
# CONFIG_MFD_RSMU_SPI is not set
# end of Multifunction device drivers

CONFIG_REGULATOR=y
# CONFIG_REGULATOR_DEBUG is not set
CONFIG_REGULATOR_FIXED_VOLTAGE=y
# CONFIG_REGULATOR_VIRTUAL_CONSUMER is not set
# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
# CONFIG_REGULATOR_88PG86X is not set
# CONFIG_REGULATOR_ACT8865 is not set
# CONFIG_REGULATOR_AD5398 is not set
CONFIG_REGULATOR_AXP20X=y
# CONFIG_REGULATOR_DA9121 is not set
# CONFIG_REGULATOR_DA9210 is not set
# CONFIG_REGULATOR_DA9211 is not set
# CONFIG_REGULATOR_FAN53555 is not set
# CONFIG_REGULATOR_FAN53880 is not set
CONFIG_REGULATOR_GPIO=y
# CONFIG_REGULATOR_ISL9305 is not set
# CONFIG_REGULATOR_ISL6271A is not set
# CONFIG_REGULATOR_LP3971 is not set
# CONFIG_REGULATOR_LP3972 is not set
# CONFIG_REGULATOR_LP872X is not set
# CONFIG_REGULATOR_LP8755 is not set
# CONFIG_REGULATOR_LTC3589 is not set
# CONFIG_REGULATOR_LTC3676 is not set
# CONFIG_REGULATOR_MAX1586 is not set
# CONFIG_REGULATOR_MAX8649 is not set
# CONFIG_REGULATOR_MAX8660 is not set
# CONFIG_REGULATOR_MAX8893 is not set
# CONFIG_REGULATOR_MAX8952 is not set
# CONFIG_REGULATOR_MAX8973 is not set
# CONFIG_REGULATOR_MAX20086 is not set
# CONFIG_REGULATOR_MAX77826 is not set
# CONFIG_REGULATOR_MCP16502 is not set
# CONFIG_REGULATOR_MP5416 is not set
# CONFIG_REGULATOR_MP8859 is not set
# CONFIG_REGULATOR_MP886X is not set
# CONFIG_REGULATOR_MPQ7920 is not set
# CONFIG_REGULATOR_MT6311 is not set
# CONFIG_REGULATOR_PCA9450 is not set
# CONFIG_REGULATOR_PF8X00 is not set
# CONFIG_REGULATOR_PFUZE100 is not set
# CONFIG_REGULATOR_PV88060 is not set
# CONFIG_REGULATOR_PV88080 is not set
# CONFIG_REGULATOR_PV88090 is not set
# CONFIG_REGULATOR_PWM is not set
# CONFIG_REGULATOR_RASPBERRYPI_TOUCHSCREEN_ATTINY is not set
# CONFIG_REGULATOR_RT4801 is not set
# CONFIG_REGULATOR_RT6160 is not set
# CONFIG_REGULATOR_RT6245 is not set
# CONFIG_REGULATOR_RTQ2134 is not set
# CONFIG_REGULATOR_RTMV20 is not set
# CONFIG_REGULATOR_RTQ6752 is not set
# CONFIG_REGULATOR_SLG51000 is not set
# CONFIG_REGULATOR_SY7636A is not set
# CONFIG_REGULATOR_SY8106A is not set
# CONFIG_REGULATOR_SY8824X is not set
# CONFIG_REGULATOR_SY8827N is not set
# CONFIG_REGULATOR_TPS51632 is not set
# CONFIG_REGULATOR_TPS62360 is not set
# CONFIG_REGULATOR_TPS6286X is not set
# CONFIG_REGULATOR_TPS65023 is not set
# CONFIG_REGULATOR_TPS6507X is not set
# CONFIG_REGULATOR_TPS65132 is not set
# CONFIG_REGULATOR_TPS6524X is not set
# CONFIG_REGULATOR_VCTRL is not set
CONFIG_RC_CORE=y
CONFIG_RC_MAP=y
# CONFIG_LIRC is not set
# CONFIG_RC_DECODERS is not set
CONFIG_RC_DEVICES=y
# CONFIG_RC_ATI_REMOTE is not set
# CONFIG_IR_HIX5HD2 is not set
# CONFIG_IR_IMON is not set
# CONFIG_IR_IMON_RAW is not set
# CONFIG_IR_MCEUSB is not set
# CONFIG_IR_REDRAT3 is not set
# CONFIG_IR_STREAMZAP is not set
# CONFIG_IR_IGORPLUGUSB is not set
# CONFIG_IR_IGUANA is not set
# CONFIG_IR_TTUSBIR is not set
# CONFIG_RC_LOOPBACK is not set
# CONFIG_IR_GPIO_CIR is not set
CONFIG_IR_SUNXI=y
# CONFIG_IR_SERIAL is not set
# CONFIG_RC_XBOX_DVD is not set
# CONFIG_IR_TOY is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

CONFIG_MEDIA_SUPPORT=y
CONFIG_MEDIA_SUPPORT_FILTER=y
CONFIG_MEDIA_SUBDRV_AUTOSELECT=y

#
# Media device types
#
# CONFIG_MEDIA_CAMERA_SUPPORT is not set
# CONFIG_MEDIA_ANALOG_TV_SUPPORT is not set
# CONFIG_MEDIA_DIGITAL_TV_SUPPORT is not set
# CONFIG_MEDIA_RADIO_SUPPORT is not set
# CONFIG_MEDIA_SDR_SUPPORT is not set
CONFIG_MEDIA_PLATFORM_SUPPORT=y
# CONFIG_MEDIA_TEST_SUPPORT is not set
# end of Media device types

CONFIG_VIDEO_DEV=y
CONFIG_MEDIA_CONTROLLER=y

#
# Video4Linux options
#
CONFIG_VIDEO_V4L2=y
CONFIG_VIDEO_V4L2_I2C=y
CONFIG_VIDEO_V4L2_SUBDEV_API=y
# CONFIG_VIDEO_ADV_DEBUG is not set
# CONFIG_VIDEO_FIXED_MINOR_RANGES is not set
CONFIG_V4L2_MEM2MEM_DEV=y
CONFIG_V4L2_FWNODE=y
CONFIG_V4L2_ASYNC=y
# end of Video4Linux options

#
# Media controller options
#
CONFIG_MEDIA_CONTROLLER_REQUEST_API=y
# end of Media controller options

#
# Media drivers
#

#
# Drivers filtered as selected at 'Filter media drivers'
#
# CONFIG_MEDIA_USB_SUPPORT is not set
CONFIG_VIDEOBUF2_CORE=y
CONFIG_VIDEOBUF2_V4L2=y
CONFIG_VIDEOBUF2_MEMOPS=y
CONFIG_VIDEOBUF2_DMA_CONTIG=y
CONFIG_V4L_PLATFORM_DRIVERS=y
# CONFIG_VIDEO_CADENCE is not set
# CONFIG_VIDEO_ASPEED is not set
# CONFIG_VIDEO_MUX is not set
# CONFIG_VIDEO_XILINX is not set
CONFIG_VIDEO_SUN4I_CSI=y
CONFIG_VIDEO_SUN6I_CSI=y
CONFIG_V4L_MEM2MEM_DRIVERS=y
# CONFIG_VIDEO_MEM2MEM_DEINTERLACE is not set
CONFIG_VIDEO_SUN8I_DEINTERLACE=y
CONFIG_VIDEO_SUN8I_ROTATE=y
# end of Media drivers

CONFIG_MEDIA_HIDE_ANCILLARY_SUBDRV=y

#
# Media ancillary drivers
#

#
# IR I2C driver auto-selected by 'Autoselect ancillary drivers'
#
CONFIG_VIDEO_IR_I2C=y

#
# audio, video and radio I2C drivers auto-selected by 'Autoselect ancillary drivers'
#

#
# Video and audio decoders
#

#
# SPI I2C drivers auto-selected by 'Autoselect ancillary drivers'
#

#
# Media SPI Adapters
#
# end of Media SPI Adapters
# end of Media ancillary drivers

#
# Graphics support
#
# CONFIG_IMX_IPUV3_CORE is not set
# CONFIG_DRM is not set

#
# ARM devices
#
# end of ARM devices

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
CONFIG_BACKLIGHT_CLASS_DEVICE=y
# CONFIG_BACKLIGHT_KTD253 is not set
CONFIG_BACKLIGHT_PWM=y
# CONFIG_BACKLIGHT_QCOM_WLED is not set
# CONFIG_BACKLIGHT_ADP8860 is not set
# CONFIG_BACKLIGHT_ADP8870 is not set
# CONFIG_BACKLIGHT_LM3630A is not set
# CONFIG_BACKLIGHT_LM3639 is not set
# CONFIG_BACKLIGHT_LP855X is not set
# CONFIG_BACKLIGHT_GPIO is not set
# CONFIG_BACKLIGHT_LV5207LP is not set
# CONFIG_BACKLIGHT_BD6107 is not set
# CONFIG_BACKLIGHT_ARCXCNN is not set
# CONFIG_BACKLIGHT_LED is not set
# end of Backlight & LCD device support

#
# Console display driver support
#
CONFIG_DUMMY_CONSOLE=y
# end of Console display driver support
# end of Graphics support

CONFIG_SOUND=y
CONFIG_SND=y
CONFIG_SND_TIMER=y
CONFIG_SND_PCM=y
CONFIG_SND_DMAENGINE_PCM=y
CONFIG_SND_JACK=y
CONFIG_SND_JACK_INPUT_DEV=y
# CONFIG_SND_OSSEMUL is not set
CONFIG_SND_PCM_TIMER=y
# CONFIG_SND_HRTIMER is not set
# CONFIG_SND_DYNAMIC_MINORS is not set
CONFIG_SND_SUPPORT_OLD_API=y
CONFIG_SND_PROC_FS=y
CONFIG_SND_VERBOSE_PROCFS=y
# CONFIG_SND_VERBOSE_PRINTK is not set
# CONFIG_SND_DEBUG is not set
# CONFIG_SND_SEQUENCER is not set
CONFIG_SND_DRIVERS=y
# CONFIG_SND_DUMMY is not set
# CONFIG_SND_ALOOP is not set
# CONFIG_SND_MTPAV is not set
# CONFIG_SND_SERIAL_U16550 is not set
# CONFIG_SND_MPU401 is not set

#
# HD-Audio
#
# end of HD-Audio

CONFIG_SND_HDA_PREALLOC_SIZE=64
CONFIG_SND_ARM=y
CONFIG_SND_SPI=y
CONFIG_SND_USB=y
# CONFIG_SND_USB_AUDIO is not set
# CONFIG_SND_USB_UA101 is not set
# CONFIG_SND_USB_CAIAQ is not set
# CONFIG_SND_USB_6FIRE is not set
# CONFIG_SND_USB_HIFACE is not set
# CONFIG_SND_BCD2000 is not set
# CONFIG_SND_USB_POD is not set
# CONFIG_SND_USB_PODHD is not set
# CONFIG_SND_USB_TONEPORT is not set
# CONFIG_SND_USB_VARIAX is not set
CONFIG_SND_SOC=y
CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM=y
# CONFIG_SND_SOC_ADI is not set
# CONFIG_SND_SOC_AMD_ACP is not set
# CONFIG_SND_AMD_ACP_CONFIG is not set
# CONFIG_SND_ATMEL_SOC is not set
# CONFIG_SND_BCM63XX_I2S_WHISTLER is not set
# CONFIG_SND_DESIGNWARE_I2S is not set

#
# SoC Audio for Freescale CPUs
#

#
# Common SoC Audio options for Freescale CPUs:
#
# CONFIG_SND_SOC_FSL_ASRC is not set
# CONFIG_SND_SOC_FSL_SAI is not set
# CONFIG_SND_SOC_FSL_AUDMIX is not set
# CONFIG_SND_SOC_FSL_SSI is not set
# CONFIG_SND_SOC_FSL_SPDIF is not set
# CONFIG_SND_SOC_FSL_ESAI is not set
# CONFIG_SND_SOC_FSL_MICFIL is not set
# CONFIG_SND_SOC_FSL_XCVR is not set
# CONFIG_SND_SOC_IMX_AUDMUX is not set
# end of SoC Audio for Freescale CPUs

# CONFIG_SND_I2S_HI6210_I2S is not set
# CONFIG_SND_SOC_IMG is not set
# CONFIG_SND_SOC_MTK_BTCVSD is not set
# CONFIG_SND_SOC_SOF_TOPLEVEL is not set

#
# STMicroelectronics STM32 SOC audio support
#
# end of STMicroelectronics STM32 SOC audio support

#
# Allwinner SoC Audio support
#
CONFIG_SND_SUN4I_CODEC=y
CONFIG_SND_SUN8I_CODEC=y
CONFIG_SND_SUN8I_CODEC_ANALOG=y
CONFIG_SND_SUN4I_I2S=y
CONFIG_SND_SUN4I_SPDIF=y
CONFIG_SND_SUN8I_ADDA_PR_REGMAP=y
# end of Allwinner SoC Audio support

# CONFIG_SND_SOC_XILINX_I2S is not set
# CONFIG_SND_SOC_XILINX_AUDIO_FORMATTER is not set
# CONFIG_SND_SOC_XILINX_SPDIF is not set
# CONFIG_SND_SOC_XTFPGA_I2S is not set
CONFIG_SND_SOC_I2C_AND_SPI=y

#
# CODEC drivers
#
# CONFIG_SND_SOC_AC97_CODEC is not set
# CONFIG_SND_SOC_ADAU1372_I2C is not set
# CONFIG_SND_SOC_ADAU1372_SPI is not set
# CONFIG_SND_SOC_ADAU1701 is not set
# CONFIG_SND_SOC_ADAU1761_I2C is not set
# CONFIG_SND_SOC_ADAU1761_SPI is not set
# CONFIG_SND_SOC_ADAU7002 is not set
# CONFIG_SND_SOC_ADAU7118_HW is not set
# CONFIG_SND_SOC_ADAU7118_I2C is not set
# CONFIG_SND_SOC_AK4104 is not set
# CONFIG_SND_SOC_AK4118 is not set
# CONFIG_SND_SOC_AK4375 is not set
# CONFIG_SND_SOC_AK4458 is not set
# CONFIG_SND_SOC_AK4554 is not set
# CONFIG_SND_SOC_AK4613 is not set
# CONFIG_SND_SOC_AK4642 is not set
# CONFIG_SND_SOC_AK5386 is not set
# CONFIG_SND_SOC_AK5558 is not set
# CONFIG_SND_SOC_ALC5623 is not set
# CONFIG_SND_SOC_BD28623 is not set
# CONFIG_SND_SOC_BT_SCO is not set
# CONFIG_SND_SOC_CS35L32 is not set
# CONFIG_SND_SOC_CS35L33 is not set
# CONFIG_SND_SOC_CS35L34 is not set
# CONFIG_SND_SOC_CS35L35 is not set
# CONFIG_SND_SOC_CS35L36 is not set
# CONFIG_SND_SOC_CS35L41_SPI is not set
# CONFIG_SND_SOC_CS35L41_I2C is not set
# CONFIG_SND_SOC_CS42L42 is not set
# CONFIG_SND_SOC_CS42L51_I2C is not set
# CONFIG_SND_SOC_CS42L52 is not set
# CONFIG_SND_SOC_CS42L56 is not set
# CONFIG_SND_SOC_CS42L73 is not set
# CONFIG_SND_SOC_CS4234 is not set
# CONFIG_SND_SOC_CS4265 is not set
# CONFIG_SND_SOC_CS4270 is not set
# CONFIG_SND_SOC_CS4271_I2C is not set
# CONFIG_SND_SOC_CS4271_SPI is not set
# CONFIG_SND_SOC_CS42XX8_I2C is not set
# CONFIG_SND_SOC_CS43130 is not set
# CONFIG_SND_SOC_CS4341 is not set
# CONFIG_SND_SOC_CS4349 is not set
# CONFIG_SND_SOC_CS53L30 is not set
# CONFIG_SND_SOC_CX2072X is not set
# CONFIG_SND_SOC_DA7213 is not set
# CONFIG_SND_SOC_DMIC is not set
# CONFIG_SND_SOC_ES7134 is not set
# CONFIG_SND_SOC_ES7241 is not set
# CONFIG_SND_SOC_ES8316 is not set
# CONFIG_SND_SOC_ES8328_I2C is not set
# CONFIG_SND_SOC_ES8328_SPI is not set
# CONFIG_SND_SOC_GTM601 is not set
# CONFIG_SND_SOC_ICS43432 is not set
# CONFIG_SND_SOC_INNO_RK3036 is not set
# CONFIG_SND_SOC_MAX98088 is not set
# CONFIG_SND_SOC_MAX98357A is not set
# CONFIG_SND_SOC_MAX98504 is not set
# CONFIG_SND_SOC_MAX9867 is not set
# CONFIG_SND_SOC_MAX98927 is not set
# CONFIG_SND_SOC_MAX98520 is not set
# CONFIG_SND_SOC_MAX98373_I2C is not set
# CONFIG_SND_SOC_MAX98390 is not set
# CONFIG_SND_SOC_MAX9860 is not set
# CONFIG_SND_SOC_MSM8916_WCD_DIGITAL is not set
# CONFIG_SND_SOC_PCM1681 is not set
# CONFIG_SND_SOC_PCM1789_I2C is not set
# CONFIG_SND_SOC_PCM179X_I2C is not set
# CONFIG_SND_SOC_PCM179X_SPI is not set
# CONFIG_SND_SOC_PCM186X_I2C is not set
# CONFIG_SND_SOC_PCM186X_SPI is not set
# CONFIG_SND_SOC_PCM3060_I2C is not set
# CONFIG_SND_SOC_PCM3060_SPI is not set
# CONFIG_SND_SOC_PCM3168A_I2C is not set
# CONFIG_SND_SOC_PCM3168A_SPI is not set
# CONFIG_SND_SOC_PCM5102A is not set
# CONFIG_SND_SOC_PCM512x_I2C is not set
# CONFIG_SND_SOC_PCM512x_SPI is not set
# CONFIG_SND_SOC_RK3328 is not set
# CONFIG_SND_SOC_RT5616 is not set
# CONFIG_SND_SOC_RT5631 is not set
# CONFIG_SND_SOC_RT5640 is not set
# CONFIG_SND_SOC_RT5659 is not set
# CONFIG_SND_SOC_RT9120 is not set
# CONFIG_SND_SOC_SGTL5000 is not set
# CONFIG_SND_SOC_SIMPLE_AMPLIFIER is not set
# CONFIG_SND_SOC_SIMPLE_MUX is not set
# CONFIG_SND_SOC_SPDIF is not set
# CONFIG_SND_SOC_SSM2305 is not set
# CONFIG_SND_SOC_SSM2518 is not set
# CONFIG_SND_SOC_SSM2602_SPI is not set
# CONFIG_SND_SOC_SSM2602_I2C is not set
# CONFIG_SND_SOC_SSM4567 is not set
# CONFIG_SND_SOC_STA32X is not set
# CONFIG_SND_SOC_STA350 is not set
# CONFIG_SND_SOC_STI_SAS is not set
# CONFIG_SND_SOC_TAS2552 is not set
# CONFIG_SND_SOC_TAS2562 is not set
# CONFIG_SND_SOC_TAS2764 is not set
# CONFIG_SND_SOC_TAS2770 is not set
# CONFIG_SND_SOC_TAS5086 is not set
# CONFIG_SND_SOC_TAS571X is not set
# CONFIG_SND_SOC_TAS5720 is not set
# CONFIG_SND_SOC_TAS5805M is not set
# CONFIG_SND_SOC_TAS6424 is not set
# CONFIG_SND_SOC_TDA7419 is not set
# CONFIG_SND_SOC_TFA9879 is not set
# CONFIG_SND_SOC_TFA989X is not set
# CONFIG_SND_SOC_TLV320ADC3XXX is not set
# CONFIG_SND_SOC_TLV320AIC23_I2C is not set
# CONFIG_SND_SOC_TLV320AIC23_SPI is not set
# CONFIG_SND_SOC_TLV320AIC31XX is not set
# CONFIG_SND_SOC_TLV320AIC32X4_I2C is not set
# CONFIG_SND_SOC_TLV320AIC32X4_SPI is not set
# CONFIG_SND_SOC_TLV320AIC3X_I2C is not set
# CONFIG_SND_SOC_TLV320AIC3X_SPI is not set
# CONFIG_SND_SOC_TLV320ADCX140 is not set
# CONFIG_SND_SOC_TS3A227E is not set
# CONFIG_SND_SOC_TSCS42XX is not set
# CONFIG_SND_SOC_TSCS454 is not set
# CONFIG_SND_SOC_UDA1334 is not set
# CONFIG_SND_SOC_WM8510 is not set
# CONFIG_SND_SOC_WM8523 is not set
# CONFIG_SND_SOC_WM8524 is not set
# CONFIG_SND_SOC_WM8580 is not set
# CONFIG_SND_SOC_WM8711 is not set
# CONFIG_SND_SOC_WM8728 is not set
# CONFIG_SND_SOC_WM8731 is not set
# CONFIG_SND_SOC_WM8737 is not set
# CONFIG_SND_SOC_WM8741 is not set
# CONFIG_SND_SOC_WM8750 is not set
# CONFIG_SND_SOC_WM8753 is not set
# CONFIG_SND_SOC_WM8770 is not set
# CONFIG_SND_SOC_WM8776 is not set
# CONFIG_SND_SOC_WM8782 is not set
# CONFIG_SND_SOC_WM8804_I2C is not set
# CONFIG_SND_SOC_WM8804_SPI is not set
# CONFIG_SND_SOC_WM8903 is not set
# CONFIG_SND_SOC_WM8904 is not set
# CONFIG_SND_SOC_WM8960 is not set
# CONFIG_SND_SOC_WM8962 is not set
# CONFIG_SND_SOC_WM8974 is not set
# CONFIG_SND_SOC_WM8978 is not set
# CONFIG_SND_SOC_WM8985 is not set
# CONFIG_SND_SOC_ZL38060 is not set
# CONFIG_SND_SOC_MAX9759 is not set
# CONFIG_SND_SOC_MT6351 is not set
# CONFIG_SND_SOC_MT6358 is not set
# CONFIG_SND_SOC_MT6660 is not set
# CONFIG_SND_SOC_NAU8315 is not set
# CONFIG_SND_SOC_NAU8540 is not set
# CONFIG_SND_SOC_NAU8810 is not set
# CONFIG_SND_SOC_NAU8821 is not set
# CONFIG_SND_SOC_NAU8822 is not set
# CONFIG_SND_SOC_NAU8824 is not set
# CONFIG_SND_SOC_TPA6130A2 is not set
# CONFIG_SND_SOC_LPASS_WSA_MACRO is not set
# CONFIG_SND_SOC_LPASS_VA_MACRO is not set
# CONFIG_SND_SOC_LPASS_RX_MACRO is not set
# CONFIG_SND_SOC_LPASS_TX_MACRO is not set
# end of CODEC drivers

# CONFIG_SND_SIMPLE_CARD is not set
# CONFIG_SND_AUDIO_GRAPH_CARD is not set
# CONFIG_SND_AUDIO_GRAPH_CARD2 is not set
# CONFIG_SND_TEST_COMPONENT is not set

#
# HID support
#
CONFIG_HID=y
# CONFIG_HID_BATTERY_STRENGTH is not set
# CONFIG_HIDRAW is not set
# CONFIG_UHID is not set
CONFIG_HID_GENERIC=y

#
# Special HID drivers
#
CONFIG_HID_A4TECH=y
# CONFIG_HID_ACCUTOUCH is not set
# CONFIG_HID_ACRUX is not set
CONFIG_HID_APPLE=y
# CONFIG_HID_APPLEIR is not set
# CONFIG_HID_ASUS is not set
# CONFIG_HID_AUREAL is not set
CONFIG_HID_BELKIN=y
# CONFIG_HID_BETOP_FF is not set
# CONFIG_HID_BIGBEN_FF is not set
CONFIG_HID_CHERRY=y
CONFIG_HID_CHICONY=y
# CONFIG_HID_CORSAIR is not set
# CONFIG_HID_COUGAR is not set
# CONFIG_HID_MACALLY is not set
# CONFIG_HID_PRODIKEYS is not set
# CONFIG_HID_CMEDIA is not set
# CONFIG_HID_CREATIVE_SB0540 is not set
CONFIG_HID_CYPRESS=y
# CONFIG_HID_DRAGONRISE is not set
# CONFIG_HID_EMS_FF is not set
# CONFIG_HID_ELAN is not set
# CONFIG_HID_ELECOM is not set
# CONFIG_HID_ELO is not set
CONFIG_HID_EZKEY=y
# CONFIG_HID_GEMBIRD is not set
# CONFIG_HID_GFRM is not set
# CONFIG_HID_GLORIOUS is not set
# CONFIG_HID_HOLTEK is not set
# CONFIG_HID_VIVALDI is not set
# CONFIG_HID_GT683R is not set
# CONFIG_HID_KEYTOUCH is not set
# CONFIG_HID_KYE is not set
# CONFIG_HID_UCLOGIC is not set
# CONFIG_HID_WALTOP is not set
# CONFIG_HID_VIEWSONIC is not set
# CONFIG_HID_XIAOMI is not set
# CONFIG_HID_GYRATION is not set
# CONFIG_HID_ICADE is not set
CONFIG_HID_ITE=y
# CONFIG_HID_JABRA is not set
# CONFIG_HID_TWINHAN is not set
CONFIG_HID_KENSINGTON=y
# CONFIG_HID_LCPOWER is not set
# CONFIG_HID_LED is not set
# CONFIG_HID_LENOVO is not set
# CONFIG_HID_LETSKETCH is not set
CONFIG_HID_LOGITECH=y
# CONFIG_HID_LOGITECH_HIDPP is not set
# CONFIG_LOGITECH_FF is not set
# CONFIG_LOGIRUMBLEPAD2_FF is not set
# CONFIG_LOGIG940_FF is not set
# CONFIG_LOGIWHEELS_FF is not set
# CONFIG_HID_MAGICMOUSE is not set
# CONFIG_HID_MALTRON is not set
# CONFIG_HID_MAYFLASH is not set
CONFIG_HID_REDRAGON=y
CONFIG_HID_MICROSOFT=y
CONFIG_HID_MONTEREY=y
# CONFIG_HID_MULTITOUCH is not set
# CONFIG_HID_NINTENDO is not set
# CONFIG_HID_NTI is not set
# CONFIG_HID_NTRIG is not set
# CONFIG_HID_ORTEK is not set
# CONFIG_HID_PANTHERLORD is not set
# CONFIG_HID_PENMOUNT is not set
# CONFIG_HID_PETALYNX is not set
# CONFIG_HID_PICOLCD is not set
# CONFIG_HID_PLANTRONICS is not set
# CONFIG_HID_RAZER is not set
# CONFIG_HID_PRIMAX is not set
# CONFIG_HID_RETRODE is not set
# CONFIG_HID_ROCCAT is not set
# CONFIG_HID_SAITEK is not set
# CONFIG_HID_SAMSUNG is not set
# CONFIG_HID_SEMITEK is not set
# CONFIG_HID_SIGMAMICRO is not set
# CONFIG_HID_SONY is not set
# CONFIG_HID_SPEEDLINK is not set
# CONFIG_HID_STEAM is not set
# CONFIG_HID_STEELSERIES is not set
# CONFIG_HID_SUNPLUS is not set
# CONFIG_HID_RMI is not set
# CONFIG_HID_GREENASIA is not set
# CONFIG_HID_SMARTJOYPLUS is not set
# CONFIG_HID_TIVO is not set
# CONFIG_HID_TOPSEED is not set
# CONFIG_HID_THINGM is not set
# CONFIG_HID_THRUSTMASTER is not set
# CONFIG_HID_UDRAW_PS3 is not set
# CONFIG_HID_U2FZERO is not set
# CONFIG_HID_WACOM is not set
# CONFIG_HID_WIIMOTE is not set
# CONFIG_HID_XINMO is not set
# CONFIG_HID_ZEROPLUS is not set
# CONFIG_HID_ZYDACRON is not set
# CONFIG_HID_SENSOR_HUB is not set
# CONFIG_HID_ALPS is not set
# CONFIG_HID_MCP2221 is not set
# end of Special HID drivers

#
# USB HID support
#
CONFIG_USB_HID=y
# CONFIG_HID_PID is not set
# CONFIG_USB_HIDDEV is not set
# end of USB HID support

#
# I2C HID support
#
# CONFIG_I2C_HID_OF is not set
# CONFIG_I2C_HID_OF_GOODIX is not set
# end of I2C HID support
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
CONFIG_USB_SUPPORT=y
CONFIG_USB_COMMON=y
# CONFIG_USB_LED_TRIG is not set
# CONFIG_USB_ULPI_BUS is not set
# CONFIG_USB_CONN_GPIO is not set
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB=y
# CONFIG_USB_ANNOUNCE_NEW_DEVICES is not set

#
# Miscellaneous USB options
#
CONFIG_USB_DEFAULT_PERSIST=y
# CONFIG_USB_FEW_INIT_RETRIES is not set
# CONFIG_USB_DYNAMIC_MINORS is not set
# CONFIG_USB_OTG is not set
# CONFIG_USB_OTG_PRODUCTLIST is not set
# CONFIG_USB_LEDS_TRIGGER_USBPORT is not set
CONFIG_USB_AUTOSUSPEND_DELAY=2
# CONFIG_USB_MON is not set

#
# USB Host Controller Drivers
#
# CONFIG_USB_C67X00_HCD is not set
# CONFIG_USB_XHCI_HCD is not set
CONFIG_USB_EHCI_HCD=y
# CONFIG_USB_EHCI_ROOT_HUB_TT is not set
CONFIG_USB_EHCI_TT_NEWSCHED=y
# CONFIG_USB_EHCI_FSL is not set
CONFIG_USB_EHCI_HCD_PLATFORM=y
# CONFIG_USB_OXU210HP_HCD is not set
# CONFIG_USB_ISP116X_HCD is not set
# CONFIG_USB_FOTG210_HCD is not set
# CONFIG_USB_MAX3421_HCD is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_OHCI_HCD_PLATFORM=y
# CONFIG_USB_SL811_HCD is not set
# CONFIG_USB_R8A66597_HCD is not set
# CONFIG_USB_HCD_TEST_MODE is not set

#
# USB Device Class drivers
#
# CONFIG_USB_ACM is not set
# CONFIG_USB_PRINTER is not set
# CONFIG_USB_WDM is not set
# CONFIG_USB_TMC is not set

#
# NOTE: USB_STORAGE depends on SCSI but BLK_DEV_SD may
#

#
# also be needed; see USB_STORAGE Help for more info
#
# CONFIG_USB_STORAGE is not set

#
# USB Imaging devices
#
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USBIP_CORE is not set
# CONFIG_USB_CDNS_SUPPORT is not set
CONFIG_USB_MUSB_HDRC=y
# CONFIG_USB_MUSB_HOST is not set
# CONFIG_USB_MUSB_GADGET is not set
CONFIG_USB_MUSB_DUAL_ROLE=y

#
# Platform Glue Layer
#
CONFIG_USB_MUSB_SUNXI=y

#
# MUSB DMA mode
#
# CONFIG_MUSB_PIO_ONLY is not set
# CONFIG_USB_DWC3 is not set
# CONFIG_USB_DWC2 is not set
# CONFIG_USB_CHIPIDEA is not set
# CONFIG_USB_ISP1760 is not set

#
# USB port drivers
#
# CONFIG_USB_SERIAL is not set

#
# USB Miscellaneous drivers
#
# CONFIG_USB_EMI62 is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_ADUTUX is not set
# CONFIG_USB_SEVSEG is not set
# CONFIG_USB_LEGOTOWER is not set
# CONFIG_USB_LCD is not set
# CONFIG_USB_CYPRESS_CY7C63 is not set
# CONFIG_USB_CYTHERM is not set
# CONFIG_USB_IDMOUSE is not set
# CONFIG_USB_FTDI_ELAN is not set
# CONFIG_USB_APPLEDISPLAY is not set
# CONFIG_APPLE_MFI_FASTCHARGE is not set
# CONFIG_USB_SISUSBVGA is not set
# CONFIG_USB_LD is not set
# CONFIG_USB_TRANCEVIBRATOR is not set
# CONFIG_USB_IOWARRIOR is not set
# CONFIG_USB_TEST is not set
# CONFIG_USB_EHSET_TEST_FIXTURE is not set
# CONFIG_USB_ISIGHTFW is not set
# CONFIG_USB_YUREX is not set
# CONFIG_USB_EZUSB_FX2 is not set
# CONFIG_USB_HUB_USB251XB is not set
# CONFIG_USB_HSIC_USB3503 is not set
# CONFIG_USB_HSIC_USB4604 is not set
# CONFIG_USB_LINK_LAYER_TEST is not set
# CONFIG_USB_CHAOSKEY is not set

#
# USB Physical Layer drivers
#
CONFIG_USB_PHY=y
CONFIG_NOP_USB_XCEIV=y
# CONFIG_AM335X_PHY_USB is not set
# CONFIG_USB_GPIO_VBUS is not set
# CONFIG_USB_ISP1301 is not set
# CONFIG_USB_ULPI is not set
# end of USB Physical Layer drivers

CONFIG_USB_GADGET=y
# CONFIG_USB_GADGET_DEBUG is not set
# CONFIG_USB_GADGET_DEBUG_FILES is not set
# CONFIG_USB_GADGET_DEBUG_FS is not set
CONFIG_USB_GADGET_VBUS_DRAW=2
CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2

#
# USB Peripheral Controller
#
# CONFIG_USB_FUSB300 is not set
# CONFIG_USB_FOTG210_UDC is not set
# CONFIG_USB_GR_UDC is not set
# CONFIG_USB_R8A66597 is not set
# CONFIG_USB_PXA27X is not set
# CONFIG_USB_MV_UDC is not set
# CONFIG_USB_MV_U3D is not set
# CONFIG_USB_SNP_UDC_PLAT is not set
# CONFIG_USB_M66592 is not set
# CONFIG_USB_BDC_UDC is not set
# CONFIG_USB_NET2272 is not set
# CONFIG_USB_GADGET_XILINX is not set
# CONFIG_USB_MAX3420_UDC is not set
# CONFIG_USB_DUMMY_HCD is not set
# end of USB Peripheral Controller

# CONFIG_USB_CONFIGFS is not set

#
# USB Gadget precomposed configurations
#
# CONFIG_USB_ZERO is not set
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_ETH is not set
# CONFIG_USB_G_NCM is not set
# CONFIG_USB_GADGETFS is not set
# CONFIG_USB_FUNCTIONFS is not set
# CONFIG_USB_MASS_STORAGE is not set
# CONFIG_USB_G_SERIAL is not set
# CONFIG_USB_MIDI_GADGET is not set
# CONFIG_USB_G_PRINTER is not set
# CONFIG_USB_CDC_COMPOSITE is not set
# CONFIG_USB_G_ACM_MS is not set
# CONFIG_USB_G_MULTI is not set
# CONFIG_USB_G_HID is not set
# CONFIG_USB_G_DBGP is not set
# CONFIG_USB_G_WEBCAM is not set
# CONFIG_USB_RAW_GADGET is not set
# end of USB Gadget precomposed configurations

# CONFIG_TYPEC is not set
# CONFIG_USB_ROLE_SWITCH is not set
CONFIG_MMC=y
CONFIG_PWRSEQ_EMMC=y
CONFIG_PWRSEQ_SIMPLE=y
CONFIG_MMC_BLOCK=y
CONFIG_MMC_BLOCK_MINORS=8
# CONFIG_SDIO_UART is not set
# CONFIG_MMC_TEST is not set

#
# MMC/SD/SDIO Host Controller Drivers
#
# CONFIG_MMC_DEBUG is not set
# CONFIG_MMC_SDHCI is not set
# CONFIG_MMC_SPI is not set
# CONFIG_MMC_DW is not set
# CONFIG_MMC_VUB300 is not set
# CONFIG_MMC_USHC is not set
# CONFIG_MMC_USDHI6ROL0 is not set
CONFIG_MMC_SUNXI=y
# CONFIG_MMC_CQHCI is not set
# CONFIG_MMC_HSQ is not set
# CONFIG_MMC_MTK is not set
# CONFIG_MEMSTICK is not set
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_CLASS_FLASH is not set
# CONFIG_LEDS_CLASS_MULTICOLOR is not set
# CONFIG_LEDS_BRIGHTNESS_HW_CHANGED is not set

#
# LED drivers
#
# CONFIG_LEDS_AN30259A is not set
# CONFIG_LEDS_AW2013 is not set
# CONFIG_LEDS_BCM6328 is not set
# CONFIG_LEDS_BCM6358 is not set
# CONFIG_LEDS_CR0014114 is not set
# CONFIG_LEDS_EL15203000 is not set
# CONFIG_LEDS_LM3530 is not set
# CONFIG_LEDS_LM3532 is not set
# CONFIG_LEDS_LM3642 is not set
# CONFIG_LEDS_LM3692X is not set
# CONFIG_LEDS_PCA9532 is not set
CONFIG_LEDS_GPIO=y
# CONFIG_LEDS_LP3944 is not set
# CONFIG_LEDS_LP3952 is not set
# CONFIG_LEDS_LP50XX is not set
# CONFIG_LEDS_LP55XX_COMMON is not set
# CONFIG_LEDS_LP8860 is not set
# CONFIG_LEDS_PCA955X is not set
# CONFIG_LEDS_PCA963X is not set
# CONFIG_LEDS_DAC124S085 is not set
# CONFIG_LEDS_PWM is not set
# CONFIG_LEDS_REGULATOR is not set
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_LT3593 is not set
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_TLC591XX is not set
# CONFIG_LEDS_LM355x is not set
# CONFIG_LEDS_IS31FL319X is not set
# CONFIG_LEDS_IS31FL32XX is not set

#
# LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)
#
# CONFIG_LEDS_BLINKM is not set
# CONFIG_LEDS_SYSCON is not set
# CONFIG_LEDS_MLXREG is not set
# CONFIG_LEDS_USER is not set
# CONFIG_LEDS_SPI_BYTE is not set
# CONFIG_LEDS_TI_LMU_COMMON is not set

#
# Flash and Torch LED drivers
#

#
# LED Triggers
#
CONFIG_LEDS_TRIGGERS=y
# CONFIG_LEDS_TRIGGER_TIMER is not set
# CONFIG_LEDS_TRIGGER_ONESHOT is not set
# CONFIG_LEDS_TRIGGER_DISK is not set
CONFIG_LEDS_TRIGGER_HEARTBEAT=y
# CONFIG_LEDS_TRIGGER_BACKLIGHT is not set
# CONFIG_LEDS_TRIGGER_CPU is not set
# CONFIG_LEDS_TRIGGER_ACTIVITY is not set
# CONFIG_LEDS_TRIGGER_GPIO is not set
CONFIG_LEDS_TRIGGER_DEFAULT_ON=y

#
# iptables trigger is under Netfilter config (LED target)
#
# CONFIG_LEDS_TRIGGER_TRANSIENT is not set
# CONFIG_LEDS_TRIGGER_CAMERA is not set
# CONFIG_LEDS_TRIGGER_PANIC is not set
# CONFIG_LEDS_TRIGGER_NETDEV is not set
# CONFIG_LEDS_TRIGGER_PATTERN is not set
# CONFIG_LEDS_TRIGGER_AUDIO is not set
# CONFIG_LEDS_TRIGGER_TTY is not set

#
# Simple LED drivers
#
# CONFIG_ACCESSIBILITY is not set
# CONFIG_INFINIBAND is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_SYSTOHC=y
CONFIG_RTC_SYSTOHC_DEVICE="rtc0"
# CONFIG_RTC_DEBUG is not set
CONFIG_RTC_NVMEM=y

#
# RTC interfaces
#
# CONFIG_RTC_INTF_SYSFS is not set
# CONFIG_RTC_INTF_PROC is not set
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
# CONFIG_RTC_DRV_TEST is not set

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_ABB5ZES3 is not set
# CONFIG_RTC_DRV_ABEOZ9 is not set
# CONFIG_RTC_DRV_ABX80X is not set
CONFIG_RTC_DRV_AC100=y
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_HYM8563 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_ISL12022 is not set
# CONFIG_RTC_DRV_ISL12026 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8523 is not set
# CONFIG_RTC_DRV_PCF85063 is not set
# CONFIG_RTC_DRV_PCF85363 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_BQ32K is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8010 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set
# CONFIG_RTC_DRV_EM3027 is not set
# CONFIG_RTC_DRV_RV3028 is not set
# CONFIG_RTC_DRV_RV3032 is not set
# CONFIG_RTC_DRV_RV8803 is not set
# CONFIG_RTC_DRV_SD3078 is not set

#
# SPI RTC drivers
#
# CONFIG_RTC_DRV_M41T93 is not set
# CONFIG_RTC_DRV_M41T94 is not set
# CONFIG_RTC_DRV_DS1302 is not set
# CONFIG_RTC_DRV_DS1305 is not set
# CONFIG_RTC_DRV_DS1343 is not set
# CONFIG_RTC_DRV_DS1347 is not set
# CONFIG_RTC_DRV_DS1390 is not set
# CONFIG_RTC_DRV_MAX6916 is not set
# CONFIG_RTC_DRV_R9701 is not set
# CONFIG_RTC_DRV_RX4581 is not set
# CONFIG_RTC_DRV_RS5C348 is not set
# CONFIG_RTC_DRV_MAX6902 is not set
# CONFIG_RTC_DRV_PCF2123 is not set
# CONFIG_RTC_DRV_MCP795 is not set
CONFIG_RTC_I2C_AND_SPI=y

#
# SPI and I2C RTC drivers
#
# CONFIG_RTC_DRV_DS3232 is not set
# CONFIG_RTC_DRV_PCF2127 is not set
# CONFIG_RTC_DRV_RV3029C2 is not set
# CONFIG_RTC_DRV_RX6110 is not set

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1685_FAMILY is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_DS2404 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_MSM6242 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_RP5C01 is not set
# CONFIG_RTC_DRV_V3020 is not set
# CONFIG_RTC_DRV_ZYNQMP is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_SUN6I=y
CONFIG_RTC_DRV_SUNXI=y
# CONFIG_RTC_DRV_CADENCE is not set
# CONFIG_RTC_DRV_FTRTC010 is not set
# CONFIG_RTC_DRV_R7301 is not set

#
# HID Sensor RTC drivers
#
# CONFIG_RTC_DRV_GOLDFISH is not set
CONFIG_DMADEVICES=y
# CONFIG_DMADEVICES_DEBUG is not set

#
# DMA Devices
#
CONFIG_DMA_ENGINE=y
CONFIG_DMA_VIRTUAL_CHANNELS=y
CONFIG_DMA_OF=y
# CONFIG_ALTERA_MSGDMA is not set
CONFIG_DMA_SUN4I=y
CONFIG_DMA_SUN6I=y
# CONFIG_DW_AXI_DMAC is not set
# CONFIG_FSL_EDMA is not set
# CONFIG_FSL_QDMA is not set
# CONFIG_INTEL_IDMA64 is not set
# CONFIG_NBPFAXI_DMA is not set
# CONFIG_XILINX_ZYNQMP_DPDMA is not set
# CONFIG_QCOM_HIDMA_MGMT is not set
# CONFIG_QCOM_HIDMA is not set
# CONFIG_DW_DMAC is not set
# CONFIG_SF_PDMA is not set

#
# DMA Clients
#
# CONFIG_ASYNC_TX_DMA is not set
# CONFIG_DMATEST is not set

#
# DMABUF options
#
CONFIG_SYNC_FILE=y
# CONFIG_SW_SYNC is not set
# CONFIG_UDMABUF is not set
# CONFIG_DMABUF_MOVE_NOTIFY is not set
# CONFIG_DMABUF_DEBUG is not set
# CONFIG_DMABUF_SELFTESTS is not set
# CONFIG_DMABUF_HEAPS is not set
# CONFIG_DMABUF_SYSFS_STATS is not set
# end of DMABUF options

# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
CONFIG_VIRTIO_MENU=y
# CONFIG_VIRTIO_MMIO is not set
# CONFIG_VDPA is not set
CONFIG_VHOST_MENU=y
# CONFIG_VHOST_NET is not set
# CONFIG_VHOST_CROSS_ENDIAN_LEGACY is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
CONFIG_STAGING=y
# CONFIG_PRISM2_USB is not set
# CONFIG_RTLLIB is not set
CONFIG_RTL8723BS=m
# CONFIG_R8712U is not set
# CONFIG_R8188EU is not set
# CONFIG_VT6656 is not set

#
# IIO staging drivers
#

#
# Accelerometers
#
# CONFIG_ADIS16203 is not set
# CONFIG_ADIS16240 is not set
# end of Accelerometers

#
# Analog to digital converters
#
# CONFIG_AD7816 is not set
# end of Analog to digital converters

#
# Analog digital bi-direction converters
#
# CONFIG_ADT7316 is not set
# end of Analog digital bi-direction converters

#
# Capacitance to digital converters
#
# CONFIG_AD7746 is not set
# end of Capacitance to digital converters

#
# Direct Digital Synthesis
#
# CONFIG_AD9832 is not set
# CONFIG_AD9834 is not set
# end of Direct Digital Synthesis

#
# Network Analyzer, Impedance Converters
#
# CONFIG_AD5933 is not set
# end of Network Analyzer, Impedance Converters

#
# Active energy metering IC
#
# CONFIG_ADE7854 is not set
# end of Active energy metering IC

#
# Resolver to digital converters
#
# CONFIG_AD2S1210 is not set
# end of Resolver to digital converters
# end of IIO staging drivers

CONFIG_STAGING_MEDIA=y
# CONFIG_VIDEO_HANTRO is not set
# CONFIG_VIDEO_MAX96712 is not set
CONFIG_VIDEO_SUNXI=y
CONFIG_VIDEO_SUNXI_CEDRUS=y

#
# Android
#
# end of Android

# CONFIG_STAGING_BOARD is not set
# CONFIG_LTE_GDM724X is not set
# CONFIG_UNISYSSPAR is not set
# CONFIG_COMMON_CLK_XLNX_CLKWZRD is not set
# CONFIG_KS7010 is not set
# CONFIG_PI433 is not set
# CONFIG_XIL_AXIS_FIFO is not set
# CONFIG_FIELDBUS_DEV is not set
# CONFIG_WFX is not set
# CONFIG_GOLDFISH is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_COMMON_CLK=y

#
# Clock driver for ARM Reference designs
#
# CONFIG_CLK_ICST is not set
# CONFIG_CLK_SP810 is not set
# end of Clock driver for ARM Reference designs

# CONFIG_LMK04832 is not set
# CONFIG_COMMON_CLK_MAX9485 is not set
# CONFIG_COMMON_CLK_SI5341 is not set
# CONFIG_COMMON_CLK_SI5351 is not set
# CONFIG_COMMON_CLK_SI514 is not set
# CONFIG_COMMON_CLK_SI544 is not set
# CONFIG_COMMON_CLK_SI570 is not set
# CONFIG_COMMON_CLK_CDCE706 is not set
# CONFIG_COMMON_CLK_CDCE925 is not set
# CONFIG_COMMON_CLK_CS2000_CP is not set
# CONFIG_COMMON_CLK_LAN966X is not set
# CONFIG_COMMON_CLK_AXI_CLKGEN is not set
# CONFIG_COMMON_CLK_PWM is not set
# CONFIG_COMMON_CLK_VC5 is not set
# CONFIG_COMMON_CLK_FIXED_MMIO is not set
CONFIG_CLK_SUNXI=y
CONFIG_CLK_SUNXI_CLOCKS=y
CONFIG_CLK_SUNXI_PRCM_SUN6I=y
CONFIG_CLK_SUNXI_PRCM_SUN8I=y
CONFIG_CLK_SUNXI_PRCM_SUN9I=y
CONFIG_SUNXI_CCU=y
CONFIG_SUN4I_A10_CCU=y
CONFIG_SUN5I_CCU=y
CONFIG_SUN6I_A31_CCU=y
CONFIG_SUN8I_A23_CCU=y
CONFIG_SUN8I_A33_CCU=y
CONFIG_SUN8I_A83T_CCU=y
CONFIG_SUN8I_H3_CCU=y
CONFIG_SUN8I_V3S_CCU=y
CONFIG_SUN8I_DE2_CCU=y
CONFIG_SUN8I_R40_CCU=y
CONFIG_SUN9I_A80_CCU=y
CONFIG_SUN8I_R_CCU=y
# CONFIG_XILINX_VCU is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_TIMER_OF=y
CONFIG_TIMER_PROBE=y
CONFIG_CLKSRC_MMIO=y
CONFIG_SUN4I_TIMER=y
CONFIG_SUN5I_HSTIMER=y
CONFIG_ARM_ARCH_TIMER=y
CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
# CONFIG_MICROCHIP_PIT64B is not set
# end of Clock Source drivers

CONFIG_MAILBOX=y
# CONFIG_PLATFORM_MHU is not set
# CONFIG_ALTERA_MBOX is not set
# CONFIG_MAILBOX_TEST is not set
CONFIG_SUN6I_MSGBOX=y
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_QCOM_GLINK_RPM is not set
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

# CONFIG_SOUNDWIRE is not set

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# end of Amlogic SoC drivers

#
# Broadcom SoC drivers
#
# CONFIG_SOC_BRCMSTB is not set
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# CONFIG_QUICC_ENGINE is not set
# CONFIG_FSL_RCPM is not set
# end of NXP/Freescale QorIQ SoC drivers

#
# i.MX SoC drivers
#
# end of i.MX SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

#
# Qualcomm SoC drivers
#
# end of Qualcomm SoC drivers

CONFIG_SUNXI_MBUS=y
CONFIG_SUNXI_SRAM=y
# CONFIG_SOC_TI is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

CONFIG_PM_DEVFREQ=y

#
# DEVFREQ Governors
#
CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND=y
# CONFIG_DEVFREQ_GOV_PERFORMANCE is not set
# CONFIG_DEVFREQ_GOV_POWERSAVE is not set
# CONFIG_DEVFREQ_GOV_USERSPACE is not set
# CONFIG_DEVFREQ_GOV_PASSIVE is not set

#
# DEVFREQ Drivers
#
# CONFIG_ARM_SUN8I_A33_MBUS_DEVFREQ is not set
# CONFIG_PM_DEVFREQ_EVENT is not set
CONFIG_EXTCON=y

#
# Extcon Device Drivers
#
# CONFIG_EXTCON_ADC_JACK is not set
# CONFIG_EXTCON_FSA9480 is not set
# CONFIG_EXTCON_GPIO is not set
# CONFIG_EXTCON_MAX3355 is not set
# CONFIG_EXTCON_PTN5150 is not set
# CONFIG_EXTCON_RT8973A is not set
# CONFIG_EXTCON_SM5502 is not set
# CONFIG_EXTCON_USB_GPIO is not set
# CONFIG_EXTCON_USBC_TUSB320 is not set
# CONFIG_MEMORY is not set
CONFIG_IIO=y
# CONFIG_IIO_BUFFER is not set
# CONFIG_IIO_CONFIGFS is not set
# CONFIG_IIO_TRIGGER is not set
# CONFIG_IIO_SW_DEVICE is not set
# CONFIG_IIO_SW_TRIGGER is not set
# CONFIG_IIO_TRIGGERED_EVENT is not set

#
# Accelerometers
#
# CONFIG_ADIS16201 is not set
# CONFIG_ADIS16209 is not set
# CONFIG_ADXL313_I2C is not set
# CONFIG_ADXL313_SPI is not set
# CONFIG_ADXL345_I2C is not set
# CONFIG_ADXL345_SPI is not set
# CONFIG_ADXL355_I2C is not set
# CONFIG_ADXL355_SPI is not set
# CONFIG_ADXL367_SPI is not set
# CONFIG_ADXL367_I2C is not set
# CONFIG_ADXL372_SPI is not set
# CONFIG_ADXL372_I2C is not set
# CONFIG_BMA180 is not set
# CONFIG_BMA220 is not set
# CONFIG_BMA400 is not set
# CONFIG_BMC150_ACCEL is not set
# CONFIG_BMI088_ACCEL is not set
# CONFIG_DA280 is not set
# CONFIG_DA311 is not set
# CONFIG_DMARD06 is not set
# CONFIG_DMARD09 is not set
# CONFIG_DMARD10 is not set
# CONFIG_FXLS8962AF_I2C is not set
# CONFIG_FXLS8962AF_SPI is not set
# CONFIG_IIO_ST_ACCEL_3AXIS is not set
# CONFIG_KXSD9 is not set
# CONFIG_KXCJK1013 is not set
# CONFIG_MC3230 is not set
# CONFIG_MMA7455_I2C is not set
# CONFIG_MMA7455_SPI is not set
# CONFIG_MMA7660 is not set
# CONFIG_MMA8452 is not set
# CONFIG_MMA9551 is not set
# CONFIG_MMA9553 is not set
# CONFIG_MXC4005 is not set
# CONFIG_MXC6255 is not set
# CONFIG_SCA3000 is not set
# CONFIG_SCA3300 is not set
# CONFIG_STK8312 is not set
# CONFIG_STK8BA50 is not set
# end of Accelerometers

#
# Analog to digital converters
#
# CONFIG_AD7091R5 is not set
# CONFIG_AD7124 is not set
# CONFIG_AD7192 is not set
# CONFIG_AD7266 is not set
# CONFIG_AD7280 is not set
# CONFIG_AD7291 is not set
# CONFIG_AD7292 is not set
# CONFIG_AD7298 is not set
# CONFIG_AD7476 is not set
# CONFIG_AD7606_IFACE_PARALLEL is not set
# CONFIG_AD7606_IFACE_SPI is not set
# CONFIG_AD7766 is not set
# CONFIG_AD7768_1 is not set
# CONFIG_AD7780 is not set
# CONFIG_AD7791 is not set
# CONFIG_AD7793 is not set
# CONFIG_AD7887 is not set
# CONFIG_AD7923 is not set
# CONFIG_AD7949 is not set
# CONFIG_AD799X is not set
# CONFIG_ADI_AXI_ADC is not set
CONFIG_AXP20X_ADC=y
# CONFIG_AXP288_ADC is not set
# CONFIG_CC10001_ADC is not set
# CONFIG_ENVELOPE_DETECTOR is not set
# CONFIG_HI8435 is not set
# CONFIG_HX711 is not set
# CONFIG_INA2XX_ADC is not set
# CONFIG_LTC2471 is not set
# CONFIG_LTC2485 is not set
# CONFIG_LTC2496 is not set
# CONFIG_LTC2497 is not set
# CONFIG_MAX1027 is not set
# CONFIG_MAX11100 is not set
# CONFIG_MAX1118 is not set
# CONFIG_MAX1241 is not set
# CONFIG_MAX1363 is not set
# CONFIG_MAX9611 is not set
# CONFIG_MCP320X is not set
# CONFIG_MCP3422 is not set
# CONFIG_MCP3911 is not set
# CONFIG_NAU7802 is not set
# CONFIG_SD_ADC_MODULATOR is not set
CONFIG_SUN4I_GPADC=y
# CONFIG_TI_ADC081C is not set
# CONFIG_TI_ADC0832 is not set
# CONFIG_TI_ADC084S021 is not set
# CONFIG_TI_ADC12138 is not set
# CONFIG_TI_ADC108S102 is not set
# CONFIG_TI_ADC128S052 is not set
# CONFIG_TI_ADC161S626 is not set
# CONFIG_TI_ADS1015 is not set
# CONFIG_TI_ADS7950 is not set
# CONFIG_TI_ADS8344 is not set
# CONFIG_TI_ADS8688 is not set
# CONFIG_TI_ADS124S08 is not set
# CONFIG_TI_ADS131E08 is not set
# CONFIG_TI_TLC4541 is not set
# CONFIG_TI_TSC2046 is not set
# CONFIG_VF610_ADC is not set
# CONFIG_XILINX_XADC is not set
# end of Analog to digital converters

#
# Analog to digital and digital to analog converters
#
# CONFIG_AD74413R is not set
# end of Analog to digital and digital to analog converters

#
# Analog Front Ends
#
# CONFIG_IIO_RESCALE is not set
# end of Analog Front Ends

#
# Amplifiers
#
# CONFIG_AD8366 is not set
# CONFIG_ADA4250 is not set
# CONFIG_HMC425 is not set
# end of Amplifiers

#
# Capacitance to digital converters
#
# CONFIG_AD7150 is not set
# end of Capacitance to digital converters

#
# Chemical Sensors
#
# CONFIG_ATLAS_PH_SENSOR is not set
# CONFIG_ATLAS_EZO_SENSOR is not set
# CONFIG_BME680 is not set
# CONFIG_CCS811 is not set
# CONFIG_IAQCORE is not set
# CONFIG_SCD30_CORE is not set
# CONFIG_SCD4X is not set
# CONFIG_SENSIRION_SGP30 is not set
# CONFIG_SENSIRION_SGP40 is not set
# CONFIG_SPS30_I2C is not set
# CONFIG_SENSEAIR_SUNRISE_CO2 is not set
# CONFIG_VZ89X is not set
# end of Chemical Sensors

#
# Hid Sensor IIO Common
#
# end of Hid Sensor IIO Common

#
# IIO SCMI Sensors
#
# end of IIO SCMI Sensors

#
# SSP Sensor Common
#
# CONFIG_IIO_SSP_SENSORHUB is not set
# end of SSP Sensor Common

#
# Digital to analog converters
#
# CONFIG_AD3552R is not set
# CONFIG_AD5064 is not set
# CONFIG_AD5360 is not set
# CONFIG_AD5380 is not set
# CONFIG_AD5421 is not set
# CONFIG_AD5446 is not set
# CONFIG_AD5449 is not set
# CONFIG_AD5592R is not set
# CONFIG_AD5593R is not set
# CONFIG_AD5504 is not set
# CONFIG_AD5624R_SPI is not set
# CONFIG_AD5686_SPI is not set
# CONFIG_AD5696_I2C is not set
# CONFIG_AD5755 is not set
# CONFIG_AD5758 is not set
# CONFIG_AD5761 is not set
# CONFIG_AD5764 is not set
# CONFIG_AD5766 is not set
# CONFIG_AD5770R is not set
# CONFIG_AD5791 is not set
# CONFIG_AD7293 is not set
# CONFIG_AD7303 is not set
# CONFIG_AD8801 is not set
# CONFIG_DPOT_DAC is not set
# CONFIG_DS4424 is not set
# CONFIG_LTC1660 is not set
# CONFIG_LTC2632 is not set
# CONFIG_M62332 is not set
# CONFIG_MAX517 is not set
# CONFIG_MAX5821 is not set
# CONFIG_MCP4725 is not set
# CONFIG_MCP4922 is not set
# CONFIG_TI_DAC082S085 is not set
# CONFIG_TI_DAC5571 is not set
# CONFIG_TI_DAC7311 is not set
# CONFIG_TI_DAC7612 is not set
# CONFIG_VF610_DAC is not set
# end of Digital to analog converters

#
# IIO dummy driver
#
# end of IIO dummy driver

#
# Filters
#
# end of Filters

#
# Frequency Synthesizers DDS/PLL
#

#
# Clock Generator/Distribution
#
# CONFIG_AD9523 is not set
# end of Clock Generator/Distribution

#
# Phase-Locked Loop (PLL) frequency synthesizers
#
# CONFIG_ADF4350 is not set
# CONFIG_ADF4371 is not set
# CONFIG_ADMV1013 is not set
# CONFIG_ADMV4420 is not set
# CONFIG_ADRF6780 is not set
# end of Phase-Locked Loop (PLL) frequency synthesizers
# end of Frequency Synthesizers DDS/PLL

#
# Digital gyroscope sensors
#
# CONFIG_ADIS16080 is not set
# CONFIG_ADIS16130 is not set
# CONFIG_ADIS16136 is not set
# CONFIG_ADIS16260 is not set
# CONFIG_ADXRS290 is not set
# CONFIG_ADXRS450 is not set
# CONFIG_BMG160 is not set
# CONFIG_FXAS21002C is not set
# CONFIG_MPU3050_I2C is not set
# CONFIG_IIO_ST_GYRO_3AXIS is not set
# CONFIG_ITG3200 is not set
# end of Digital gyroscope sensors

#
# Health Sensors
#

#
# Heart Rate Monitors
#
# CONFIG_AFE4403 is not set
# CONFIG_AFE4404 is not set
# CONFIG_MAX30100 is not set
# CONFIG_MAX30102 is not set
# end of Heart Rate Monitors
# end of Health Sensors

#
# Humidity sensors
#
# CONFIG_AM2315 is not set
# CONFIG_DHT11 is not set
# CONFIG_HDC100X is not set
# CONFIG_HDC2010 is not set
# CONFIG_HTS221 is not set
# CONFIG_HTU21 is not set
# CONFIG_SI7005 is not set
# CONFIG_SI7020 is not set
# end of Humidity sensors

#
# Inertial measurement units
#
# CONFIG_ADIS16400 is not set
# CONFIG_ADIS16460 is not set
# CONFIG_ADIS16475 is not set
# CONFIG_ADIS16480 is not set
# CONFIG_BMI160_I2C is not set
# CONFIG_BMI160_SPI is not set
# CONFIG_FXOS8700_I2C is not set
# CONFIG_FXOS8700_SPI is not set
# CONFIG_KMX61 is not set
# CONFIG_INV_ICM42600_I2C is not set
# CONFIG_INV_ICM42600_SPI is not set
# CONFIG_INV_MPU6050_I2C is not set
# CONFIG_INV_MPU6050_SPI is not set
# CONFIG_IIO_ST_LSM6DSX is not set
# CONFIG_IIO_ST_LSM9DS0 is not set
# end of Inertial measurement units

#
# Light sensors
#
# CONFIG_ADJD_S311 is not set
# CONFIG_ADUX1020 is not set
# CONFIG_AL3010 is not set
# CONFIG_AL3320A is not set
# CONFIG_APDS9300 is not set
# CONFIG_APDS9960 is not set
# CONFIG_AS73211 is not set
# CONFIG_BH1750 is not set
# CONFIG_BH1780 is not set
# CONFIG_CM32181 is not set
# CONFIG_CM3232 is not set
# CONFIG_CM3323 is not set
# CONFIG_CM3605 is not set
# CONFIG_CM36651 is not set
# CONFIG_GP2AP002 is not set
# CONFIG_GP2AP020A00F is not set
# CONFIG_SENSORS_ISL29018 is not set
# CONFIG_SENSORS_ISL29028 is not set
# CONFIG_ISL29125 is not set
# CONFIG_JSA1212 is not set
# CONFIG_RPR0521 is not set
# CONFIG_LTR501 is not set
# CONFIG_LV0104CS is not set
# CONFIG_MAX44000 is not set
# CONFIG_MAX44009 is not set
# CONFIG_NOA1305 is not set
# CONFIG_OPT3001 is not set
# CONFIG_PA12203001 is not set
# CONFIG_SI1133 is not set
# CONFIG_SI1145 is not set
# CONFIG_STK3310 is not set
# CONFIG_ST_UVIS25 is not set
# CONFIG_TCS3414 is not set
# CONFIG_TCS3472 is not set
# CONFIG_SENSORS_TSL2563 is not set
# CONFIG_TSL2583 is not set
# CONFIG_TSL2591 is not set
# CONFIG_TSL2772 is not set
# CONFIG_TSL4531 is not set
# CONFIG_US5182D is not set
# CONFIG_VCNL4000 is not set
# CONFIG_VCNL4035 is not set
# CONFIG_VEML6030 is not set
# CONFIG_VEML6070 is not set
# CONFIG_VL6180 is not set
# CONFIG_ZOPT2201 is not set
# end of Light sensors

#
# Magnetometer sensors
#
# CONFIG_AK8974 is not set
# CONFIG_AK8975 is not set
# CONFIG_AK09911 is not set
# CONFIG_BMC150_MAGN_I2C is not set
# CONFIG_BMC150_MAGN_SPI is not set
# CONFIG_MAG3110 is not set
# CONFIG_MMC35240 is not set
# CONFIG_IIO_ST_MAGN_3AXIS is not set
# CONFIG_SENSORS_HMC5843_I2C is not set
# CONFIG_SENSORS_HMC5843_SPI is not set
# CONFIG_SENSORS_RM3100_I2C is not set
# CONFIG_SENSORS_RM3100_SPI is not set
# CONFIG_YAMAHA_YAS530 is not set
# end of Magnetometer sensors

#
# Multiplexers
#
# CONFIG_IIO_MUX is not set
# end of Multiplexers

#
# Inclinometer sensors
#
# end of Inclinometer sensors

#
# Linear and angular position sensors
#
# end of Linear and angular position sensors

#
# Digital potentiometers
#
# CONFIG_AD5110 is not set
# CONFIG_AD5272 is not set
# CONFIG_DS1803 is not set
# CONFIG_MAX5432 is not set
# CONFIG_MAX5481 is not set
# CONFIG_MAX5487 is not set
# CONFIG_MCP4018 is not set
# CONFIG_MCP4131 is not set
# CONFIG_MCP4531 is not set
# CONFIG_MCP41010 is not set
# CONFIG_TPL0102 is not set
# end of Digital potentiometers

#
# Digital potentiostats
#
# CONFIG_LMP91000 is not set
# end of Digital potentiostats

#
# Pressure sensors
#
# CONFIG_ABP060MG is not set
# CONFIG_BMP280 is not set
# CONFIG_DLHL60D is not set
# CONFIG_DPS310 is not set
# CONFIG_HP03 is not set
# CONFIG_ICP10100 is not set
# CONFIG_MPL115_I2C is not set
# CONFIG_MPL115_SPI is not set
# CONFIG_MPL3115 is not set
# CONFIG_MS5611 is not set
# CONFIG_MS5637 is not set
# CONFIG_IIO_ST_PRESS is not set
# CONFIG_T5403 is not set
# CONFIG_HP206C is not set
# CONFIG_ZPA2326 is not set
# end of Pressure sensors

#
# Lightning sensors
#
# CONFIG_AS3935 is not set
# end of Lightning sensors

#
# Proximity and distance sensors
#
# CONFIG_ISL29501 is not set
# CONFIG_LIDAR_LITE_V2 is not set
# CONFIG_MB1232 is not set
# CONFIG_PING is not set
# CONFIG_RFD77402 is not set
# CONFIG_SRF04 is not set
# CONFIG_SX9310 is not set
# CONFIG_SX9324 is not set
# CONFIG_SX9360 is not set
# CONFIG_SX9500 is not set
# CONFIG_SRF08 is not set
# CONFIG_VCNL3020 is not set
# CONFIG_VL53L0X_I2C is not set
# end of Proximity and distance sensors

#
# Resolver to digital converters
#
# CONFIG_AD2S90 is not set
# CONFIG_AD2S1200 is not set
# end of Resolver to digital converters

#
# Temperature sensors
#
# CONFIG_LTC2983 is not set
# CONFIG_MAXIM_THERMOCOUPLE is not set
# CONFIG_MLX90614 is not set
# CONFIG_MLX90632 is not set
# CONFIG_TMP006 is not set
# CONFIG_TMP007 is not set
# CONFIG_TMP117 is not set
# CONFIG_TSYS01 is not set
# CONFIG_TSYS02D is not set
# CONFIG_MAX31856 is not set
# CONFIG_MAX31865 is not set
# end of Temperature sensors

CONFIG_PWM=y
CONFIG_PWM_SYSFS=y
# CONFIG_PWM_DEBUG is not set
# CONFIG_PWM_ATMEL_TCB is not set
# CONFIG_PWM_FSL_FTM is not set
# CONFIG_PWM_PCA9685 is not set
CONFIG_PWM_SUN4I=y

#
# IRQ chip support
#
CONFIG_IRQCHIP=y
CONFIG_ARM_GIC=y
CONFIG_ARM_GIC_MAX_NR=1
# CONFIG_AL_FIC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
CONFIG_ARCH_HAS_RESET_CONTROLLER=y
CONFIG_RESET_CONTROLLER=y
CONFIG_RESET_SIMPLE=y
CONFIG_RESET_SUNXI=y
# CONFIG_RESET_TI_SYSCON is not set

#
# PHY Subsystem
#
CONFIG_GENERIC_PHY=y
CONFIG_GENERIC_PHY_MIPI_DPHY=y
# CONFIG_PHY_CAN_TRANSCEIVER is not set
CONFIG_PHY_SUN4I_USB=y
CONFIG_PHY_SUN6I_MIPI_DPHY=y
CONFIG_PHY_SUN9I_USB=y
# CONFIG_PHY_SUN50I_USB3 is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_CADENCE_TORRENT is not set
# CONFIG_PHY_CADENCE_DPHY is not set
# CONFIG_PHY_CADENCE_SIERRA is not set
# CONFIG_PHY_CADENCE_SALVO is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_LAN966X_SERDES is not set
# CONFIG_PHY_CPCAP_USB is not set
# CONFIG_PHY_MAPPHONE_MDM6600 is not set
# CONFIG_PHY_OCELOT_SERDES is not set
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# CONFIG_ARM_CCI_PMU is not set
# CONFIG_ARM_CCN is not set
CONFIG_ARM_PMU=y
# end of Performance monitor support

# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID is not set
# end of Android

# CONFIG_DAX is not set
CONFIG_NVMEM=y
CONFIG_NVMEM_SYSFS=y
CONFIG_NVMEM_SUNXI_SID=y
# CONFIG_NVMEM_RMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_FSI is not set
# CONFIG_TEE is not set
CONFIG_PM_OPP=y
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
CONFIG_FS_IOMAP=y
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
CONFIG_EXT4_FS=y
CONFIG_EXT4_USE_FOR_EXT2=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_JBD2=y
# CONFIG_JBD2_DEBUG is not set
CONFIG_FS_MBCACHE=y
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_FS_POSIX_ACL=y
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
CONFIG_FSNOTIFY=y
CONFIG_DNOTIFY=y
CONFIG_INOTIFY_USER=y
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
CONFIG_FAT_FS=y
# CONFIG_MSDOS_FS is not set
CONFIG_VFAT_FS=y
CONFIG_FAT_DEFAULT_CODEPAGE=437
CONFIG_FAT_DEFAULT_IOCHARSET="iso8859-1"
# CONFIG_FAT_DEFAULT_UTF8 is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_KERNFS=y
CONFIG_SYSFS=y
CONFIG_TMPFS=y
# CONFIG_TMPFS_POSIX_ACL is not set
# CONFIG_TMPFS_XATTR is not set
CONFIG_MEMFD_CREATE=y
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems

CONFIG_MISC_FILESYSTEMS=y
# CONFIG_ORANGEFS_FS is not set
# CONFIG_ADFS_FS is not set
# CONFIG_AFFS_FS is not set
# CONFIG_ECRYPT_FS is not set
# CONFIG_HFS_FS is not set
# CONFIG_HFSPLUS_FS is not set
# CONFIG_BEFS_FS is not set
# CONFIG_BFS_FS is not set
# CONFIG_EFS_FS is not set
# CONFIG_CRAMFS is not set
# CONFIG_SQUASHFS is not set
# CONFIG_VXFS_FS is not set
# CONFIG_MINIX_FS is not set
# CONFIG_OMFS_FS is not set
# CONFIG_HPFS_FS is not set
# CONFIG_QNX4FS_FS is not set
# CONFIG_QNX6FS_FS is not set
# CONFIG_ROMFS_FS is not set
# CONFIG_PSTORE is not set
# CONFIG_SYSV_FS is not set
# CONFIG_UFS_FS is not set
# CONFIG_EROFS_FS is not set
CONFIG_NETWORK_FILESYSTEMS=y
CONFIG_NFS_FS=y
CONFIG_NFS_V2=y
CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
# CONFIG_NFS_SWAP is not set
# CONFIG_NFS_V4_1 is not set
CONFIG_ROOT_NFS=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
CONFIG_NFS_USE_KERNEL_DNS=y
CONFIG_NFS_DISABLE_UDP_SUPPORT=y
# CONFIG_NFSD is not set
CONFIG_GRACE_PERIOD=y
CONFIG_LOCKD=y
CONFIG_LOCKD_V4=y
CONFIG_NFS_ACL_SUPPORT=y
CONFIG_NFS_COMMON=y
CONFIG_SUNRPC=y
CONFIG_SUNRPC_GSS=y
CONFIG_RPCSEC_GSS_KRB5=m
# CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES is not set
# CONFIG_SUNRPC_DEBUG is not set
# CONFIG_CEPH_FS is not set
# CONFIG_CIFS is not set
# CONFIG_SMB_SERVER is not set
# CONFIG_CODA_FS is not set
# CONFIG_AFS_FS is not set
CONFIG_NLS=y
CONFIG_NLS_DEFAULT="iso8859-1"
CONFIG_NLS_CODEPAGE_437=y
# CONFIG_NLS_CODEPAGE_737 is not set
# CONFIG_NLS_CODEPAGE_775 is not set
# CONFIG_NLS_CODEPAGE_850 is not set
# CONFIG_NLS_CODEPAGE_852 is not set
# CONFIG_NLS_CODEPAGE_855 is not set
# CONFIG_NLS_CODEPAGE_857 is not set
# CONFIG_NLS_CODEPAGE_860 is not set
# CONFIG_NLS_CODEPAGE_861 is not set
# CONFIG_NLS_CODEPAGE_862 is not set
# CONFIG_NLS_CODEPAGE_863 is not set
# CONFIG_NLS_CODEPAGE_864 is not set
# CONFIG_NLS_CODEPAGE_865 is not set
# CONFIG_NLS_CODEPAGE_866 is not set
# CONFIG_NLS_CODEPAGE_869 is not set
# CONFIG_NLS_CODEPAGE_936 is not set
# CONFIG_NLS_CODEPAGE_950 is not set
# CONFIG_NLS_CODEPAGE_932 is not set
# CONFIG_NLS_CODEPAGE_949 is not set
# CONFIG_NLS_CODEPAGE_874 is not set
# CONFIG_NLS_ISO8859_8 is not set
# CONFIG_NLS_CODEPAGE_1250 is not set
# CONFIG_NLS_CODEPAGE_1251 is not set
# CONFIG_NLS_ASCII is not set
CONFIG_NLS_ISO8859_1=y
# CONFIG_NLS_ISO8859_2 is not set
# CONFIG_NLS_ISO8859_3 is not set
# CONFIG_NLS_ISO8859_4 is not set
# CONFIG_NLS_ISO8859_5 is not set
# CONFIG_NLS_ISO8859_6 is not set
# CONFIG_NLS_ISO8859_7 is not set
# CONFIG_NLS_ISO8859_9 is not set
# CONFIG_NLS_ISO8859_13 is not set
# CONFIG_NLS_ISO8859_14 is not set
# CONFIG_NLS_ISO8859_15 is not set
# CONFIG_NLS_KOI8_R is not set
# CONFIG_NLS_KOI8_U is not set
# CONFIG_NLS_MAC_ROMAN is not set
# CONFIG_NLS_MAC_CELTIC is not set
# CONFIG_NLS_MAC_CENTEURO is not set
# CONFIG_NLS_MAC_CROATIAN is not set
# CONFIG_NLS_MAC_CYRILLIC is not set
# CONFIG_NLS_MAC_GAELIC is not set
# CONFIG_NLS_MAC_GREEK is not set
# CONFIG_NLS_MAC_ICELAND is not set
# CONFIG_NLS_MAC_INUIT is not set
# CONFIG_NLS_MAC_ROMANIAN is not set
# CONFIG_NLS_MAC_TURKISH is not set
# CONFIG_NLS_UTF8 is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
CONFIG_KEYS=y
# CONFIG_KEYS_REQUEST_CACHE is not set
# CONFIG_PERSISTENT_KEYRINGS is not set
# CONFIG_ENCRYPTED_KEYS is not set
# CONFIG_KEY_DH_OPERATIONS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_GCC_PLUGIN_STRUCTLEAK_USER is not set
# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF is not set
# CONFIG_GCC_PLUGIN_STRUCTLEAK_BYREF_ALL is not set
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization
# end of Kernel hardening options
# end of Security options

CONFIG_XOR_BLOCKS=m
CONFIG_CRYPTO=y

#
# Crypto core or helper
#
CONFIG_CRYPTO_ALGAPI=y
CONFIG_CRYPTO_ALGAPI2=y
CONFIG_CRYPTO_AEAD=y
CONFIG_CRYPTO_AEAD2=y
CONFIG_CRYPTO_SKCIPHER=y
CONFIG_CRYPTO_SKCIPHER2=y
CONFIG_CRYPTO_HASH=y
CONFIG_CRYPTO_HASH2=y
CONFIG_CRYPTO_RNG=y
CONFIG_CRYPTO_RNG2=y
CONFIG_CRYPTO_RNG_DEFAULT=y
CONFIG_CRYPTO_AKCIPHER2=y
CONFIG_CRYPTO_AKCIPHER=y
CONFIG_CRYPTO_KPP2=y
CONFIG_CRYPTO_KPP=m
CONFIG_CRYPTO_ACOMP2=y
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_MANAGER2=y
CONFIG_CRYPTO_USER=y
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y
CONFIG_CRYPTO_GF128MUL=y
CONFIG_CRYPTO_NULL=y
CONFIG_CRYPTO_NULL2=y
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_AUTHENC=y
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_ENGINE=y

#
# Public-key cryptography
#
CONFIG_CRYPTO_RSA=y
CONFIG_CRYPTO_DH=m
CONFIG_CRYPTO_ECC=m
CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_ECDSA=m
CONFIG_CRYPTO_ECRDSA=m
CONFIG_CRYPTO_SM2=m
CONFIG_CRYPTO_CURVE25519=m

#
# Authenticated Encryption with Associated Data
#
CONFIG_CRYPTO_CCM=m
CONFIG_CRYPTO_GCM=y
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
CONFIG_CRYPTO_SEQIV=y
CONFIG_CRYPTO_ECHAINIV=y

#
# Block modes
#
CONFIG_CRYPTO_CBC=y
CONFIG_CRYPTO_CFB=m
CONFIG_CRYPTO_CTR=y
CONFIG_CRYPTO_CTS=m
CONFIG_CRYPTO_ECB=y
CONFIG_CRYPTO_LRW=m
CONFIG_CRYPTO_OFB=m
CONFIG_CRYPTO_PCBC=m
CONFIG_CRYPTO_XTS=m
CONFIG_CRYPTO_KEYWRAP=m
CONFIG_CRYPTO_NHPOLY1305=m
CONFIG_CRYPTO_ADIANTUM=m
CONFIG_CRYPTO_ESSIV=m

#
# Hash modes
#
CONFIG_CRYPTO_CMAC=m
CONFIG_CRYPTO_HMAC=y
CONFIG_CRYPTO_XCBC=m
CONFIG_CRYPTO_VMAC=m

#
# Digest
#
CONFIG_CRYPTO_CRC32C=y
CONFIG_CRYPTO_CRC32=m
CONFIG_CRYPTO_XXHASH=m
CONFIG_CRYPTO_BLAKE2B=m
CONFIG_CRYPTO_BLAKE2S=m
CONFIG_CRYPTO_CRCT10DIF=m
CONFIG_CRYPTO_GHASH=y
CONFIG_CRYPTO_POLY1305=m
CONFIG_CRYPTO_MD4=m
CONFIG_CRYPTO_MD5=y
CONFIG_CRYPTO_MICHAEL_MIC=m
CONFIG_CRYPTO_RMD160=m
CONFIG_CRYPTO_SHA1=y
CONFIG_CRYPTO_SHA256=y
CONFIG_CRYPTO_SHA512=y
CONFIG_CRYPTO_SHA3=m
CONFIG_CRYPTO_SM3=m
CONFIG_CRYPTO_STREEBOG=m
CONFIG_CRYPTO_WP512=m

#
# Ciphers
#
CONFIG_CRYPTO_AES=y
CONFIG_CRYPTO_AES_TI=m
CONFIG_CRYPTO_ANUBIS=m
CONFIG_CRYPTO_ARC4=m
CONFIG_CRYPTO_BLOWFISH=m
CONFIG_CRYPTO_BLOWFISH_COMMON=m
CONFIG_CRYPTO_CAMELLIA=m
CONFIG_CRYPTO_CAST_COMMON=m
CONFIG_CRYPTO_CAST5=m
CONFIG_CRYPTO_CAST6=m
CONFIG_CRYPTO_DES=y
CONFIG_CRYPTO_FCRYPT=m
CONFIG_CRYPTO_KHAZAD=m
CONFIG_CRYPTO_CHACHA20=m
CONFIG_CRYPTO_SEED=m
CONFIG_CRYPTO_SERPENT=m
CONFIG_CRYPTO_SM4=m
CONFIG_CRYPTO_TEA=m
CONFIG_CRYPTO_TWOFISH=m
CONFIG_CRYPTO_TWOFISH_COMMON=m

#
# Compression
#
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=m
CONFIG_CRYPTO_842=m
CONFIG_CRYPTO_LZ4=m
CONFIG_CRYPTO_LZ4HC=m
CONFIG_CRYPTO_ZSTD=m

#
# Random Number Generation
#
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DRBG_MENU=y
CONFIG_CRYPTO_DRBG_HMAC=y
CONFIG_CRYPTO_DRBG_HASH=y
CONFIG_CRYPTO_DRBG_CTR=y
CONFIG_CRYPTO_DRBG=y
CONFIG_CRYPTO_JITTERENTROPY=y
CONFIG_CRYPTO_USER_API=y
CONFIG_CRYPTO_USER_API_HASH=y
CONFIG_CRYPTO_USER_API_SKCIPHER=y
CONFIG_CRYPTO_USER_API_RNG=y
CONFIG_CRYPTO_USER_API_RNG_CAVP=y
CONFIG_CRYPTO_USER_API_AEAD=m
CONFIG_CRYPTO_USER_API_ENABLE_OBSOLETE=y
CONFIG_CRYPTO_STATS=y
CONFIG_CRYPTO_HASH_INFO=y
CONFIG_CRYPTO_HW=y
CONFIG_CRYPTO_DEV_ALLWINNER=y
CONFIG_CRYPTO_DEV_SUN4I_SS=y
CONFIG_CRYPTO_DEV_SUN4I_SS_PRNG=y
CONFIG_CRYPTO_DEV_SUN4I_SS_DEBUG=y
CONFIG_CRYPTO_DEV_SUN8I_CE=y
CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG=y
CONFIG_CRYPTO_DEV_SUN8I_CE_HASH=y
CONFIG_CRYPTO_DEV_SUN8I_CE_PRNG=y
CONFIG_CRYPTO_DEV_SUN8I_CE_TRNG=y
CONFIG_CRYPTO_DEV_SUN8I_CE_RSA=y
CONFIG_CRYPTO_DEV_SUN8I_SS=y
CONFIG_CRYPTO_DEV_SUN8I_SS_DEBUG=y
CONFIG_CRYPTO_DEV_SUN8I_SS_PRNG=y
CONFIG_CRYPTO_DEV_SUN8I_SS_HASH=y
CONFIG_CRYPTO_DEV_ATMEL_I2C=m
CONFIG_CRYPTO_DEV_ATMEL_ECC=m
CONFIG_CRYPTO_DEV_ATMEL_SHA204A=m
CONFIG_CRYPTO_DEV_SAFEXCEL=m
CONFIG_CRYPTO_DEV_CCREE=m
CONFIG_CRYPTO_DEV_AMLOGIC_GXL=m
CONFIG_CRYPTO_DEV_AMLOGIC_GXL_DEBUG=y
CONFIG_ASYMMETRIC_KEY_TYPE=y
CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=y
CONFIG_X509_CERTIFICATE_PARSER=y
# CONFIG_PKCS8_PRIVATE_KEY_PARSER is not set
CONFIG_PKCS7_MESSAGE_PARSER=y
# CONFIG_PKCS7_TEST_KEY is not set
# CONFIG_SIGNED_PE_FILE_VERIFICATION is not set

#
# Certificates for signature checking
#
CONFIG_SYSTEM_TRUSTED_KEYRING=y
CONFIG_SYSTEM_TRUSTED_KEYS=""
# CONFIG_SYSTEM_EXTRA_CERTIFICATE is not set
# CONFIG_SECONDARY_TRUSTED_KEYRING is not set
# CONFIG_SYSTEM_BLACKLIST_KEYRING is not set
# end of Certificates for signature checking

CONFIG_BINARY_PRINTF=y

#
# Library routines
#
CONFIG_LINEAR_RANGES=y
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_HAVE_ARCH_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_GENERIC_NET_UTILS=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_RATIONAL=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_AES=y
CONFIG_CRYPTO_LIB_ARC4=m
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
CONFIG_CRYPTO_LIB_CHACHA_GENERIC=m
CONFIG_CRYPTO_LIB_CHACHA=m
CONFIG_CRYPTO_LIB_CURVE25519_GENERIC=m
CONFIG_CRYPTO_LIB_CURVE25519=m
CONFIG_CRYPTO_LIB_DES=y
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=9
CONFIG_CRYPTO_LIB_POLY1305_GENERIC=m
CONFIG_CRYPTO_LIB_POLY1305=m
CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m
CONFIG_CRYPTO_LIB_SHA256=y
CONFIG_CRYPTO_LIB_SM3=m
CONFIG_CRYPTO_LIB_SM4=m
# end of Crypto library routines

CONFIG_CRC_CCITT=y
CONFIG_CRC16=y
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
CONFIG_XXHASH=y
# CONFIG_RANDOM32_SELFTEST is not set
CONFIG_842_COMPRESS=m
CONFIG_842_DECOMPRESS=m
CONFIG_ZLIB_INFLATE=y
CONFIG_ZLIB_DEFLATE=y
CONFIG_LZO_COMPRESS=m
CONFIG_LZO_DECOMPRESS=y
CONFIG_LZ4_COMPRESS=m
CONFIG_LZ4HC_COMPRESS=m
CONFIG_LZ4_DECOMPRESS=y
CONFIG_ZSTD_COMPRESS=m
CONFIG_ZSTD_DECOMPRESS=y
CONFIG_XZ_DEC=y
CONFIG_XZ_DEC_X86=y
CONFIG_XZ_DEC_POWERPC=y
CONFIG_XZ_DEC_IA64=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_ARMTHUMB=y
CONFIG_XZ_DEC_SPARC=y
# CONFIG_XZ_DEC_MICROLZMA is not set
CONFIG_XZ_DEC_BCJ=y
# CONFIG_XZ_DEC_TEST is not set
CONFIG_DECOMPRESS_GZIP=y
CONFIG_DECOMPRESS_BZIP2=y
CONFIG_DECOMPRESS_LZMA=y
CONFIG_DECOMPRESS_XZ=y
CONFIG_DECOMPRESS_LZO=y
CONFIG_DECOMPRESS_LZ4=y
CONFIG_DECOMPRESS_ZSTD=y
CONFIG_GENERIC_ALLOCATOR=y
CONFIG_ASSOCIATIVE_ARRAY=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_DMA_OPS=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_DMA_DECLARE_COHERENT=y
CONFIG_ARCH_HAS_SETUP_DMA_OPS=y
CONFIG_ARCH_HAS_TEARDOWN_DMA_OPS=y
CONFIG_DMA_NONCOHERENT_MMAP=y
CONFIG_DMA_REMAP=y
CONFIG_DMA_CMA=y
# CONFIG_DMA_PERNUMA_CMA is not set

#
# Default contiguous memory area size:
#
CONFIG_CMA_SIZE_MBYTES=16
CONFIG_CMA_SIZE_SEL_MBYTES=y
# CONFIG_CMA_SIZE_SEL_PERCENTAGE is not set
# CONFIG_CMA_SIZE_SEL_MIN is not set
# CONFIG_CMA_SIZE_SEL_MAX is not set
CONFIG_CMA_ALIGNMENT=8
CONFIG_DMA_API_DEBUG=y
CONFIG_DMA_API_DEBUG_SG=y
# CONFIG_DMA_MAP_BENCHMARK is not set
CONFIG_SGL_ALLOC=y
CONFIG_CPU_RMAP=y
CONFIG_DQL=y
CONFIG_GLOB=y
# CONFIG_GLOB_SELFTEST is not set
CONFIG_NLATTR=y
CONFIG_CLZ_TAB=y
# CONFIG_IRQ_POLL is not set
CONFIG_MPILIB=y
CONFIG_LIBFDT=y
CONFIG_OID_REGISTRY=y
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_32=y
CONFIG_SG_POOL=y
CONFIG_SBITMAP=y
# end of Library routines

CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y

#
# Kernel hacking
#

#
# printk and dmesg options
#
CONFIG_PRINTK_TIME=y
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_BOOT_PRINTK_DELAY is not set
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
CONFIG_SYMBOLIC_ERRNAME=y
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

CONFIG_DEBUG_KERNEL=y
CONFIG_DEBUG_MISC=y

#
# Compile-time checks and compiler options
#
CONFIG_DEBUG_INFO=y
# CONFIG_DEBUG_INFO_NONE is not set
# CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT is not set
CONFIG_DEBUG_INFO_DWARF4=y
# CONFIG_DEBUG_INFO_DWARF5 is not set
# CONFIG_DEBUG_INFO_REDUCED is not set
# CONFIG_DEBUG_INFO_COMPRESSED is not set
# CONFIG_DEBUG_INFO_SPLIT is not set
# CONFIG_GDB_SCRIPTS is not set
CONFIG_FRAME_WARN=1024
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_READABLE_ASM is not set
# CONFIG_HEADERS_INSTALL is not set
# CONFIG_DEBUG_SECTION_MISMATCH is not set
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
CONFIG_DEBUG_FS=y
CONFIG_DEBUG_FS_ALLOW_ALL=y
# CONFIG_DEBUG_FS_DISALLOW_MOUNT is not set
# CONFIG_DEBUG_FS_ALLOW_NONE is not set
CONFIG_HAVE_ARCH_KGDB=y
# CONFIG_KGDB is not set
# CONFIG_UBSAN is not set
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# CONFIG_NET_DEV_REFCNT_TRACKER is not set
# CONFIG_NET_NS_REFCNT_TRACKER is not set
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
# CONFIG_DEBUG_PAGEALLOC is not set
# CONFIG_PAGE_OWNER is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_PAGE_REF is not set
# CONFIG_DEBUG_RODATA_TEST is not set
# CONFIG_DEBUG_WX is not set
# CONFIG_DEBUG_OBJECTS is not set
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_SLUB_STATS is not set
CONFIG_HAVE_DEBUG_KMEMLEAK=y
# CONFIG_DEBUG_KMEMLEAK is not set
# CONFIG_DEBUG_STACK_USAGE is not set
# CONFIG_SCHED_STACK_END_CHECK is not set
# CONFIG_DEBUG_VM is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
# CONFIG_DEBUG_VIRTUAL is not set
CONFIG_DEBUG_MEMORY_INIT=y
# CONFIG_DEBUG_PER_CPU_MAPS is not set
# CONFIG_DEBUG_KMAP_LOCAL is not set
# CONFIG_DEBUG_HIGHMEM is not set
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
# end of Memory Debugging

# CONFIG_DEBUG_SHIRQ is not set

#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
# CONFIG_SOFTLOCKUP_DETECTOR is not set
# CONFIG_DETECT_HUNG_TASK is not set
# CONFIG_WQ_WATCHDOG is not set
# CONFIG_TEST_LOCKUP is not set
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
CONFIG_SCHED_DEBUG=y
# CONFIG_SCHEDSTATS is not set
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
CONFIG_PROVE_LOCKING=y
# CONFIG_PROVE_RAW_LOCK_NESTING is not set
# CONFIG_LOCK_STAT is not set
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
CONFIG_DEBUG_RWSEMS=y
CONFIG_DEBUG_LOCK_ALLOC=y
CONFIG_LOCKDEP=y
CONFIG_LOCKDEP_BITS=15
CONFIG_LOCKDEP_CHAINS_BITS=16
CONFIG_LOCKDEP_STACK_TRACE_BITS=19
CONFIG_LOCKDEP_STACK_TRACE_HASH_BITS=14
CONFIG_LOCKDEP_CIRCULAR_QUEUE_BITS=12
# CONFIG_DEBUG_LOCKDEP is not set
CONFIG_DEBUG_ATOMIC_SLEEP=y
# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
# CONFIG_LOCK_TORTURE_TEST is not set
# CONFIG_WW_MUTEX_SELFTEST is not set
# CONFIG_SCF_TORTURE_TEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

CONFIG_TRACE_IRQFLAGS=y
# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set
# CONFIG_DEBUG_KOBJECT is not set

#
# Debug kernel data structures
#
# CONFIG_DEBUG_LIST is not set
# CONFIG_DEBUG_PLIST is not set
CONFIG_DEBUG_SG=y
# CONFIG_DEBUG_NOTIFIERS is not set
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Debug kernel data structures

# CONFIG_DEBUG_CREDENTIALS is not set

#
# RCU Debugging
#
CONFIG_PROVE_RCU=y
# CONFIG_RCU_SCALE_TEST is not set
# CONFIG_RCU_TORTURE_TEST is not set
# CONFIG_RCU_REF_SCALE_TEST is not set
CONFIG_RCU_CPU_STALL_TIMEOUT=21
CONFIG_RCU_EXP_CPU_STALL_TIMEOUT=21000
CONFIG_RCU_TRACE=y
# CONFIG_RCU_EQS_DEBUG is not set
# end of RCU Debugging

# CONFIG_DEBUG_WQ_FORCE_RR_CPU is not set
# CONFIG_CPU_HOTPLUG_STATE_CONTROL is not set
# CONFIG_LATENCYTOP is not set
CONFIG_NOP_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACE_CLOCK=y
CONFIG_RING_BUFFER=y
CONFIG_EVENT_TRACING=y
CONFIG_CONTEXT_SWITCH_TRACER=y
CONFIG_PREEMPTIRQ_TRACEPOINTS=y
CONFIG_TRACING=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_SAMPLES is not set
# CONFIG_STRICT_DEVMEM is not set

#
# arm Debugging
#
# CONFIG_DEBUG_AID_FOR_SYZBOT is not set
# CONFIG_ARM_PTDUMP_DEBUGFS is not set
# CONFIG_UNWINDER_FRAME_POINTER is not set
CONFIG_UNWINDER_ARM=y
CONFIG_ARM_UNWIND=y
# CONFIG_DEBUG_USER is not set
# CONFIG_DEBUG_LL is not set
CONFIG_DEBUG_LL_INCLUDE="mach/debug-macro.S"
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
# CONFIG_PID_IN_CONTEXTIDR is not set
# CONFIG_CORESIGHT is not set
# end of arm Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
# CONFIG_NOTIFIER_ERROR_INJECTION is not set
# CONFIG_FAULT_INJECTION is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
CONFIG_RUNTIME_TESTING_MENU=y
# CONFIG_LKDTM is not set
# CONFIG_TEST_MIN_HEAP is not set
# CONFIG_TEST_DIV64 is not set
# CONFIG_BACKTRACE_SELF_TEST is not set
# CONFIG_TEST_REF_TRACKER is not set
# CONFIG_RBTREE_TEST is not set
# CONFIG_REED_SOLOMON_TEST is not set
# CONFIG_INTERVAL_TREE_TEST is not set
# CONFIG_PERCPU_TEST is not set
# CONFIG_ATOMIC64_SELFTEST is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_STRING_SELFTEST is not set
# CONFIG_TEST_STRING_HELPERS is not set
# CONFIG_TEST_STRSCPY is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_PRINTF is not set
# CONFIG_TEST_SCANF is not set
# CONFIG_TEST_BITMAP is not set
# CONFIG_TEST_UUID is not set
# CONFIG_TEST_XARRAY is not set
# CONFIG_TEST_OVERFLOW is not set
# CONFIG_TEST_RHASHTABLE is not set
# CONFIG_TEST_SIPHASH is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_LKM is not set
# CONFIG_TEST_BITOPS is not set
# CONFIG_TEST_VMALLOC is not set
# CONFIG_TEST_USER_COPY is not set
# CONFIG_TEST_BPF is not set
# CONFIG_TEST_BLACKHOLE_DEV is not set
# CONFIG_FIND_BIT_BENCHMARK is not set
# CONFIG_TEST_FIRMWARE is not set
# CONFIG_TEST_SYSCTL is not set
# CONFIG_TEST_UDELAY is not set
# CONFIG_TEST_STATIC_KEYS is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_MEMCAT_P is not set
# CONFIG_TEST_STACKINIT is not set
# CONFIG_TEST_MEMINIT is not set
# CONFIG_TEST_FREE_PAGES is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking
# end of Kernel hacking

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 2 Mar 2022 at 09:55, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
>
> Le Wed, Mar 02, 2022 at 09:44:52AM +0100, Ard Biesheuvel a écrit :
> > On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> > >
> > > Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > > > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > > > >
> > > > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > > > <linux@armlinux.org.uk> wrote:
> > > > > >
> > > > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > > > Hello
> > > > > > >
> > > > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > >
> > > > > > > This happen on a sun8i-a83t-bananapi-m3
> > > > > >
> > > > > > Have you enabled vmapped stacks?
> > > > > >
> > > > >
> > > > > This is probably related to
> > > > >
> > > > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > > > >
> > > > > which removes a kernel_text_address() check on frame->pc as it is
> > > > > essentially redundant, given that we won't find unwind data otherwise.
> > > > > Unfortunately, I failed to realise that the other check carries a
> > > > > pr_warn(), which may apparently fire spuriously in some cases.
> > > > >
> > > > > The 0x0 value can easily be filtered out, but i would be interesting
> > > > > where the other value originates from. We might be able to solve this
> > > > > with a simple .nounwind directive in a asm routine somewhere.
> > > > >
> > > > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > > > in the mean time what the address 0xcf0c440 coincides with in your
> > > > > build?
> > > >
> > > > Something like the below should restore the previous behavior, while
> > > > taking the kernel_text_address() check out of the hot path.
> > > >
> > > > --- a/arch/arm/kernel/unwind.c
> > > > +++ b/arch/arm/kernel/unwind.c
> > > > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> > > >
> > > >         idx = unwind_find_idx(frame->pc);
> > > >         if (!idx) {
> > > > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > > +               if (frame->pc && kernel_text_address(frame->pc))
> > > > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > >                 return -URC_FAILURE;
> > > >         }
> > >
> > > Hello
> > >
> > > This is a more detailed trace from my follow up after your patch:
> >
> > So the log below is from a kernel that has the above patch applied?
> > Could you please share the .config?
> >
>
> Yes this is a kernel with above patch applied (this board do not boot without it).

It's not entirely clear to me how (or whether) the recent changes to
unwind.c cause this issue, but one thing that stands out in the
current code is the unguarded dereference of a value pulled of the
stack as a memory address.

It is worth noting that the only unwind entries in vmlinux that load
SP from the stack directly (as opposed to unwinding it by moving from
the frame pointer or by addition/subtraction) are the
__irq_svc/__pabt_svc/__dabt_svc entry routines, and given that the
bogus address 60000013 looks suspiciously like a PSR value (which is
stored in the vicinity of SP on the exception stack), my suspicion is
that some unwinder annotations are out of sync with the actual code.

So while the below does not fix the root cause, i.e., that the
unwinder unwinds SP incorrectly causing us to dereference a bogus
pointer, it should avoid the subsequent crash. Please give it a go.

--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -27,6 +27,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/uaccess.h>
 #include <linux/list.h>

 #include <asm/sections.h>
@@ -236,10 +237,11 @@ static int unwind_pop_register(struct
unwind_ctrl_block *ctrl,
                if (*vsp >= (unsigned long *)ctrl->sp_high)
                        return -URC_FAILURE;

-       /* Use READ_ONCE_NOCHECK here to avoid this memory access
-        * from being tracked by KASAN.
+       /* Use get_kernel_nofault() here to avoid this memory access
+        * from causing a fatal fault, and from being tracked by KASAN.
         */
-       ctrl->vrs[reg] = READ_ONCE_NOCHECK(*(*vsp));
+       if (get_kernel_nofault(ctrl->vrs[reg], *vsp))
+               return -URC_FAILURE;
        if (reg == 14)
                ctrl->lr_addr = *vsp;
        (*vsp)++;

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 2 Mar 2022 at 09:55, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
>
> Le Wed, Mar 02, 2022 at 09:44:52AM +0100, Ard Biesheuvel a écrit :
> > On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> > >
> > > Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > > > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > > > >
> > > > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > > > <linux@armlinux.org.uk> wrote:
> > > > > >
> > > > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > > > Hello
> > > > > > >
> > > > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > >
> > > > > > > This happen on a sun8i-a83t-bananapi-m3
> > > > > >
> > > > > > Have you enabled vmapped stacks?
> > > > > >
> > > > >
> > > > > This is probably related to
> > > > >
> > > > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > > > >
> > > > > which removes a kernel_text_address() check on frame->pc as it is
> > > > > essentially redundant, given that we won't find unwind data otherwise.
> > > > > Unfortunately, I failed to realise that the other check carries a
> > > > > pr_warn(), which may apparently fire spuriously in some cases.
> > > > >
> > > > > The 0x0 value can easily be filtered out, but i would be interesting
> > > > > where the other value originates from. We might be able to solve this
> > > > > with a simple .nounwind directive in a asm routine somewhere.
> > > > >
> > > > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > > > in the mean time what the address 0xcf0c440 coincides with in your
> > > > > build?
> > > >
> > > > Something like the below should restore the previous behavior, while
> > > > taking the kernel_text_address() check out of the hot path.
> > > >
> > > > --- a/arch/arm/kernel/unwind.c
> > > > +++ b/arch/arm/kernel/unwind.c
> > > > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> > > >
> > > >         idx = unwind_find_idx(frame->pc);
> > > >         if (!idx) {
> > > > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > > +               if (frame->pc && kernel_text_address(frame->pc))
> > > > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > >                 return -URC_FAILURE;
> > > >         }
> > >
> > > Hello
> > >
> > > This is a more detailed trace from my follow up after your patch:
> >
> > So the log below is from a kernel that has the above patch applied?
> > Could you please share the .config?
> >
>
> Yes this is a kernel with above patch applied (this board do not boot without it).

It's not entirely clear to me how (or whether) the recent changes to
unwind.c cause this issue, but one thing that stands out in the
current code is the unguarded dereference of a value pulled of the
stack as a memory address.

It is worth noting that the only unwind entries in vmlinux that load
SP from the stack directly (as opposed to unwinding it by moving from
the frame pointer or by addition/subtraction) are the
__irq_svc/__pabt_svc/__dabt_svc entry routines, and given that the
bogus address 60000013 looks suspiciously like a PSR value (which is
stored in the vicinity of SP on the exception stack), my suspicion is
that some unwinder annotations are out of sync with the actual code.

So while the below does not fix the root cause, i.e., that the
unwinder unwinds SP incorrectly causing us to dereference a bogus
pointer, it should avoid the subsequent crash. Please give it a go.

--- a/arch/arm/kernel/unwind.c
+++ b/arch/arm/kernel/unwind.c
@@ -27,6 +27,7 @@
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/uaccess.h>
 #include <linux/list.h>

 #include <asm/sections.h>
@@ -236,10 +237,11 @@ static int unwind_pop_register(struct
unwind_ctrl_block *ctrl,
                if (*vsp >= (unsigned long *)ctrl->sp_high)
                        return -URC_FAILURE;

-       /* Use READ_ONCE_NOCHECK here to avoid this memory access
-        * from being tracked by KASAN.
+       /* Use get_kernel_nofault() here to avoid this memory access
+        * from causing a fatal fault, and from being tracked by KASAN.
         */
-       ctrl->vrs[reg] = READ_ONCE_NOCHECK(*(*vsp));
+       if (get_kernel_nofault(ctrl->vrs[reg], *vsp))
+               return -URC_FAILURE;
        if (reg == 14)
                ctrl->lr_addr = *vsp;
        (*vsp)++;

Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Wed, Mar 02, 2022 at 10:45:46AM +0100, Ard Biesheuvel a écrit :
> On Wed, 2 Mar 2022 at 09:55, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> >
> > Le Wed, Mar 02, 2022 at 09:44:52AM +0100, Ard Biesheuvel a écrit :
> > > On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> > > >
> > > > Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > > > > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > > > > >
> > > > > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > > > > <linux@armlinux.org.uk> wrote:
> > > > > > >
> > > > > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > > > > Hello
> > > > > > > >
> > > > > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > > >
> > > > > > > > This happen on a sun8i-a83t-bananapi-m3
> > > > > > >
> > > > > > > Have you enabled vmapped stacks?
> > > > > > >
> > > > > >
> > > > > > This is probably related to
> > > > > >
> > > > > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > > > > >
> > > > > > which removes a kernel_text_address() check on frame->pc as it is
> > > > > > essentially redundant, given that we won't find unwind data otherwise.
> > > > > > Unfortunately, I failed to realise that the other check carries a
> > > > > > pr_warn(), which may apparently fire spuriously in some cases.
> > > > > >
> > > > > > The 0x0 value can easily be filtered out, but i would be interesting
> > > > > > where the other value originates from. We might be able to solve this
> > > > > > with a simple .nounwind directive in a asm routine somewhere.
> > > > > >
> > > > > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > > > > in the mean time what the address 0xcf0c440 coincides with in your
> > > > > > build?
> > > > >
> > > > > Something like the below should restore the previous behavior, while
> > > > > taking the kernel_text_address() check out of the hot path.
> > > > >
> > > > > --- a/arch/arm/kernel/unwind.c
> > > > > +++ b/arch/arm/kernel/unwind.c
> > > > > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> > > > >
> > > > >         idx = unwind_find_idx(frame->pc);
> > > > >         if (!idx) {
> > > > > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > > > +               if (frame->pc && kernel_text_address(frame->pc))
> > > > > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > > >                 return -URC_FAILURE;
> > > > >         }
> > > >
> > > > Hello
> > > >
> > > > This is a more detailed trace from my follow up after your patch:
> > >
> > > So the log below is from a kernel that has the above patch applied?
> > > Could you please share the .config?
> > >
> >
> > Yes this is a kernel with above patch applied (this board do not boot without it).
> 
> It's not entirely clear to me how (or whether) the recent changes to
> unwind.c cause this issue, but one thing that stands out in the
> current code is the unguarded dereference of a value pulled of the
> stack as a memory address.
> 
> It is worth noting that the only unwind entries in vmlinux that load
> SP from the stack directly (as opposed to unwinding it by moving from
> the frame pointer or by addition/subtraction) are the
> __irq_svc/__pabt_svc/__dabt_svc entry routines, and given that the
> bogus address 60000013 looks suspiciously like a PSR value (which is
> stored in the vicinity of SP on the exception stack), my suspicion is
> that some unwinder annotations are out of sync with the actual code.
> 
> So while the below does not fix the root cause, i.e., that the
> unwinder unwinds SP incorrectly causing us to dereference a bogus
> pointer, it should avoid the subsequent crash. Please give it a go.
> 
> --- a/arch/arm/kernel/unwind.c
> +++ b/arch/arm/kernel/unwind.c
> @@ -27,6 +27,7 @@
>  #include <linux/sched.h>
>  #include <linux/slab.h>
>  #include <linux/spinlock.h>
> +#include <linux/uaccess.h>
>  #include <linux/list.h>
> 
>  #include <asm/sections.h>
> @@ -236,10 +237,11 @@ static int unwind_pop_register(struct
> unwind_ctrl_block *ctrl,
>                 if (*vsp >= (unsigned long *)ctrl->sp_high)
>                         return -URC_FAILURE;
> 
> -       /* Use READ_ONCE_NOCHECK here to avoid this memory access
> -        * from being tracked by KASAN.
> +       /* Use get_kernel_nofault() here to avoid this memory access
> +        * from causing a fatal fault, and from being tracked by KASAN.
>          */
> -       ctrl->vrs[reg] = READ_ONCE_NOCHECK(*(*vsp));
> +       if (get_kernel_nofault(ctrl->vrs[reg], *vsp))
> +               return -URC_FAILURE;
>         if (reg == 14)
>                 ctrl->lr_addr = *vsp;
>         (*vsp)++;

The crash disappeared (but the suspicious RCU usage is still here).

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Wed, Mar 02, 2022 at 10:45:46AM +0100, Ard Biesheuvel a écrit :
> On Wed, 2 Mar 2022 at 09:55, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> >
> > Le Wed, Mar 02, 2022 at 09:44:52AM +0100, Ard Biesheuvel a écrit :
> > > On Wed, 2 Mar 2022 at 09:40, Corentin Labbe <clabbe.montjoie@gmail.com> wrote:
> > > >
> > > > Le Tue, Mar 01, 2022 at 05:52:30PM +0100, Ard Biesheuvel a écrit :
> > > > > On Tue, 1 Mar 2022 at 17:37, Ard Biesheuvel <ardb@kernel.org> wrote:
> > > > > >
> > > > > > On Tue, 1 Mar 2022 at 16:52, Russell King (Oracle)
> > > > > > <linux@armlinux.org.uk> wrote:
> > > > > > >
> > > > > > > On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > > > > > > > Hello
> > > > > > > >
> > > > > > > > I booted today linux-next (20220301) and my boot is flooded with:
> > > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > > > [    0.000000] unwind: Index not found c0f0c440
> > > > > > > > [    0.000000] unwind: Index not found 00000000
> > > > > > > >
> > > > > > > > This happen on a sun8i-a83t-bananapi-m3
> > > > > > >
> > > > > > > Have you enabled vmapped stacks?
> > > > > > >
> > > > > >
> > > > > > This is probably related to
> > > > > >
> > > > > > 538b9265c063 ARM: unwind: track location of LR value in stack frame
> > > > > >
> > > > > > which removes a kernel_text_address() check on frame->pc as it is
> > > > > > essentially redundant, given that we won't find unwind data otherwise.
> > > > > > Unfortunately, I failed to realise that the other check carries a
> > > > > > pr_warn(), which may apparently fire spuriously in some cases.
> > > > > >
> > > > > > The 0x0 value can easily be filtered out, but i would be interesting
> > > > > > where the other value originates from. We might be able to solve this
> > > > > > with a simple .nounwind directive in a asm routine somewhere.
> > > > > >
> > > > > > I'll prepare a patch that disregards the 0x0 value - could you check
> > > > > > in the mean time what the address 0xcf0c440 coincides with in your
> > > > > > build?
> > > > >
> > > > > Something like the below should restore the previous behavior, while
> > > > > taking the kernel_text_address() check out of the hot path.
> > > > >
> > > > > --- a/arch/arm/kernel/unwind.c
> > > > > +++ b/arch/arm/kernel/unwind.c
> > > > > @@ -400,7 +400,8 @@ int unwind_frame(struct stackframe *frame)
> > > > >
> > > > >         idx = unwind_find_idx(frame->pc);
> > > > >         if (!idx) {
> > > > > -               pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > > > +               if (frame->pc && kernel_text_address(frame->pc))
> > > > > +                       pr_warn("unwind: Index not found %08lx\n", frame->pc);
> > > > >                 return -URC_FAILURE;
> > > > >         }
> > > >
> > > > Hello
> > > >
> > > > This is a more detailed trace from my follow up after your patch:
> > >
> > > So the log below is from a kernel that has the above patch applied?
> > > Could you please share the .config?
> > >
> >
> > Yes this is a kernel with above patch applied (this board do not boot without it).
> 
> It's not entirely clear to me how (or whether) the recent changes to
> unwind.c cause this issue, but one thing that stands out in the
> current code is the unguarded dereference of a value pulled of the
> stack as a memory address.
> 
> It is worth noting that the only unwind entries in vmlinux that load
> SP from the stack directly (as opposed to unwinding it by moving from
> the frame pointer or by addition/subtraction) are the
> __irq_svc/__pabt_svc/__dabt_svc entry routines, and given that the
> bogus address 60000013 looks suspiciously like a PSR value (which is
> stored in the vicinity of SP on the exception stack), my suspicion is
> that some unwinder annotations are out of sync with the actual code.
> 
> So while the below does not fix the root cause, i.e., that the
> unwinder unwinds SP incorrectly causing us to dereference a bogus
> pointer, it should avoid the subsequent crash. Please give it a go.
> 
> --- a/arch/arm/kernel/unwind.c
> +++ b/arch/arm/kernel/unwind.c
> @@ -27,6 +27,7 @@
>  #include <linux/sched.h>
>  #include <linux/slab.h>
>  #include <linux/spinlock.h>
> +#include <linux/uaccess.h>
>  #include <linux/list.h>
> 
>  #include <asm/sections.h>
> @@ -236,10 +237,11 @@ static int unwind_pop_register(struct
> unwind_ctrl_block *ctrl,
>                 if (*vsp >= (unsigned long *)ctrl->sp_high)
>                         return -URC_FAILURE;
> 
> -       /* Use READ_ONCE_NOCHECK here to avoid this memory access
> -        * from being tracked by KASAN.
> +       /* Use get_kernel_nofault() here to avoid this memory access
> +        * from causing a fatal fault, and from being tracked by KASAN.
>          */
> -       ctrl->vrs[reg] = READ_ONCE_NOCHECK(*(*vsp));
> +       if (get_kernel_nofault(ctrl->vrs[reg], *vsp))
> +               return -URC_FAILURE;
>         if (reg == 14)
>                 ctrl->lr_addr = *vsp;
>         (*vsp)++;

The crash disappeared (but the suspicious RCU usage is still here).

Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> The crash disappeared (but the suspicious RCU usage is still here).

As the trace on those is:

[    0.239629]  unwind_backtrace from show_stack+0x10/0x14                      
[    0.239654]  show_stack from init_stack+0x1c54/0x2000                        

unwind_backtrace() and show_stack() are both C code, the compiler will
emit the unwind information for it. show_stack() isn't called from
assembly code, only from C code, so the next function's unwind
information should also be generated by the compiler.

However, init_stack is not a function - it's an array of unsigned long.
There is no way this should appear in the trace, and this suggests that
the unwind of show_stack() has gone wrong.

I don't see anything obvious in Ard's changes that would cause that
though.

Did it used to work fine with previous versions of linux-next - those
versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
(commit 2fa394824493) and did this only appear when I merged
"arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
"arm-ftrace-for-rmk" cause any change in your .config?

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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> The crash disappeared (but the suspicious RCU usage is still here).

As the trace on those is:

[    0.239629]  unwind_backtrace from show_stack+0x10/0x14                      
[    0.239654]  show_stack from init_stack+0x1c54/0x2000                        

unwind_backtrace() and show_stack() are both C code, the compiler will
emit the unwind information for it. show_stack() isn't called from
assembly code, only from C code, so the next function's unwind
information should also be generated by the compiler.

However, init_stack is not a function - it's an array of unsigned long.
There is no way this should appear in the trace, and this suggests that
the unwind of show_stack() has gone wrong.

I don't see anything obvious in Ard's changes that would cause that
though.

Did it used to work fine with previous versions of linux-next - those
versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
(commit 2fa394824493) and did this only appear when I merged
"arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
"arm-ftrace-for-rmk" cause any change in your .config?

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 2 Mar 2022 at 12:12, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> > The crash disappeared (but the suspicious RCU usage is still here).
>
> As the trace on those is:
>
> [    0.239629]  unwind_backtrace from show_stack+0x10/0x14
> [    0.239654]  show_stack from init_stack+0x1c54/0x2000
>
> unwind_backtrace() and show_stack() are both C code, the compiler will
> emit the unwind information for it. show_stack() isn't called from
> assembly code, only from C code, so the next function's unwind
> information should also be generated by the compiler.
>
> However, init_stack is not a function - it's an array of unsigned long.
> There is no way this should appear in the trace, and this suggests that
> the unwind of show_stack() has gone wrong.
>
> I don't see anything obvious in Ard's changes that would cause that
> though.
>
> Did it used to work fine with previous versions of linux-next - those
> versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
> (commit 2fa394824493) and did this only appear when I merged
> "arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
> "arm-ftrace-for-rmk" cause any change in your .config?
>

I can reproduce the RCU warnings, and I have tracked this down to the
change I made to return_address() for the graph tracer, which I
thought was justified after removing the call to
kernel_text_address():

--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -35,26 +35,8 @@ static inline unsigned long
ftrace_call_adjust(unsigned long addr)

 #ifndef __ASSEMBLY__

-#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
-/*
- * return_address uses walk_stackframe to do it's work.  If both
- * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
- * information.  For this to work in the function tracer many functions would
- * have to be marked with __notrace.  So for now just depend on
- * !CONFIG_ARM_UNWIND.
- */
-
 void *return_address(unsigned int);

-#else
-
-static inline void *return_address(unsigned int level)
-{
-       return NULL;
-}
-
-#endif
-
 #define ftrace_return_address(n) return_address(n)

 #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME

However, the function graph tracer works happily with this bit
reverted, and so that is probably the best course of action here.

I have already sent the patch that reintroduces the
kernel_text_address() check - would you prefer a v2 of that one with
this change incorporated? Or a second patch that just reverts the
above? (Given that the bogus dereference was invoked from
return_address() as well, I suspect that this change would make the
get_kernel_nofault() change I proposed in this thread redundant)

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Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 2 Mar 2022 at 12:12, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> > The crash disappeared (but the suspicious RCU usage is still here).
>
> As the trace on those is:
>
> [    0.239629]  unwind_backtrace from show_stack+0x10/0x14
> [    0.239654]  show_stack from init_stack+0x1c54/0x2000
>
> unwind_backtrace() and show_stack() are both C code, the compiler will
> emit the unwind information for it. show_stack() isn't called from
> assembly code, only from C code, so the next function's unwind
> information should also be generated by the compiler.
>
> However, init_stack is not a function - it's an array of unsigned long.
> There is no way this should appear in the trace, and this suggests that
> the unwind of show_stack() has gone wrong.
>
> I don't see anything obvious in Ard's changes that would cause that
> though.
>
> Did it used to work fine with previous versions of linux-next - those
> versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
> (commit 2fa394824493) and did this only appear when I merged
> "arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
> "arm-ftrace-for-rmk" cause any change in your .config?
>

I can reproduce the RCU warnings, and I have tracked this down to the
change I made to return_address() for the graph tracer, which I
thought was justified after removing the call to
kernel_text_address():

--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -35,26 +35,8 @@ static inline unsigned long
ftrace_call_adjust(unsigned long addr)

 #ifndef __ASSEMBLY__

-#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
-/*
- * return_address uses walk_stackframe to do it's work.  If both
- * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
- * information.  For this to work in the function tracer many functions would
- * have to be marked with __notrace.  So for now just depend on
- * !CONFIG_ARM_UNWIND.
- */
-
 void *return_address(unsigned int);

-#else
-
-static inline void *return_address(unsigned int level)
-{
-       return NULL;
-}
-
-#endif
-
 #define ftrace_return_address(n) return_address(n)

 #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME

However, the function graph tracer works happily with this bit
reverted, and so that is probably the best course of action here.

I have already sent the patch that reintroduces the
kernel_text_address() check - would you prefer a v2 of that one with
this change incorporated? Or a second patch that just reverts the
above? (Given that the bogus dereference was invoked from
return_address() as well, I suspect that this change would make the
get_kernel_nofault() change I proposed in this thread redundant)

Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 02, 2022 at 12:19:40PM +0100, Ard Biesheuvel wrote:
> On Wed, 2 Mar 2022 at 12:12, Russell King (Oracle)
> <linux@armlinux.org.uk> wrote:
> >
> > On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> > > The crash disappeared (but the suspicious RCU usage is still here).
> >
> > As the trace on those is:
> >
> > [    0.239629]  unwind_backtrace from show_stack+0x10/0x14
> > [    0.239654]  show_stack from init_stack+0x1c54/0x2000
> >
> > unwind_backtrace() and show_stack() are both C code, the compiler will
> > emit the unwind information for it. show_stack() isn't called from
> > assembly code, only from C code, so the next function's unwind
> > information should also be generated by the compiler.
> >
> > However, init_stack is not a function - it's an array of unsigned long.
> > There is no way this should appear in the trace, and this suggests that
> > the unwind of show_stack() has gone wrong.
> >
> > I don't see anything obvious in Ard's changes that would cause that
> > though.
> >
> > Did it used to work fine with previous versions of linux-next - those
> > versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
> > (commit 2fa394824493) and did this only appear when I merged
> > "arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
> > "arm-ftrace-for-rmk" cause any change in your .config?
> >
> 
> I can reproduce the RCU warnings, and I have tracked this down to the
> change I made to return_address() for the graph tracer, which I
> thought was justified after removing the call to
> kernel_text_address():
> 
> --- a/arch/arm/include/asm/ftrace.h
> +++ b/arch/arm/include/asm/ftrace.h
> @@ -35,26 +35,8 @@ static inline unsigned long
> ftrace_call_adjust(unsigned long addr)
> 
>  #ifndef __ASSEMBLY__
> 
> -#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
> -/*
> - * return_address uses walk_stackframe to do it's work.  If both
> - * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
> - * information.  For this to work in the function tracer many functions would
> - * have to be marked with __notrace.  So for now just depend on
> - * !CONFIG_ARM_UNWIND.
> - */
> -
>  void *return_address(unsigned int);
> 
> -#else
> -
> -static inline void *return_address(unsigned int level)
> -{
> -       return NULL;
> -}
> -
> -#endif
> -
>  #define ftrace_return_address(n) return_address(n)
> 
>  #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
> 
> However, the function graph tracer works happily with this bit
> reverted, and so that is probably the best course of action here.
> 
> I have already sent the patch that reintroduces the
> kernel_text_address() check - would you prefer a v2 of that one with
> this change incorporated? Or a second patch that just reverts the
> above? (Given that the bogus dereference was invoked from
> return_address() as well, I suspect that this change would make the
> get_kernel_nofault() change I proposed in this thread redundant)

I'd prefer patches on top of my devel-stable branch, thanks.

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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 02, 2022 at 12:19:40PM +0100, Ard Biesheuvel wrote:
> On Wed, 2 Mar 2022 at 12:12, Russell King (Oracle)
> <linux@armlinux.org.uk> wrote:
> >
> > On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> > > The crash disappeared (but the suspicious RCU usage is still here).
> >
> > As the trace on those is:
> >
> > [    0.239629]  unwind_backtrace from show_stack+0x10/0x14
> > [    0.239654]  show_stack from init_stack+0x1c54/0x2000
> >
> > unwind_backtrace() and show_stack() are both C code, the compiler will
> > emit the unwind information for it. show_stack() isn't called from
> > assembly code, only from C code, so the next function's unwind
> > information should also be generated by the compiler.
> >
> > However, init_stack is not a function - it's an array of unsigned long.
> > There is no way this should appear in the trace, and this suggests that
> > the unwind of show_stack() has gone wrong.
> >
> > I don't see anything obvious in Ard's changes that would cause that
> > though.
> >
> > Did it used to work fine with previous versions of linux-next - those
> > versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
> > (commit 2fa394824493) and did this only appear when I merged
> > "arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
> > "arm-ftrace-for-rmk" cause any change in your .config?
> >
> 
> I can reproduce the RCU warnings, and I have tracked this down to the
> change I made to return_address() for the graph tracer, which I
> thought was justified after removing the call to
> kernel_text_address():
> 
> --- a/arch/arm/include/asm/ftrace.h
> +++ b/arch/arm/include/asm/ftrace.h
> @@ -35,26 +35,8 @@ static inline unsigned long
> ftrace_call_adjust(unsigned long addr)
> 
>  #ifndef __ASSEMBLY__
> 
> -#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
> -/*
> - * return_address uses walk_stackframe to do it's work.  If both
> - * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
> - * information.  For this to work in the function tracer many functions would
> - * have to be marked with __notrace.  So for now just depend on
> - * !CONFIG_ARM_UNWIND.
> - */
> -
>  void *return_address(unsigned int);
> 
> -#else
> -
> -static inline void *return_address(unsigned int level)
> -{
> -       return NULL;
> -}
> -
> -#endif
> -
>  #define ftrace_return_address(n) return_address(n)
> 
>  #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
> 
> However, the function graph tracer works happily with this bit
> reverted, and so that is probably the best course of action here.
> 
> I have already sent the patch that reintroduces the
> kernel_text_address() check - would you prefer a v2 of that one with
> this change incorporated? Or a second patch that just reverts the
> above? (Given that the bogus dereference was invoked from
> return_address() as well, I suspect that this change would make the
> get_kernel_nofault() change I proposed in this thread redundant)

I'd prefer patches on top of my devel-stable branch, thanks.

-- 
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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 02, 2022 at 11:22:29AM +0000, Russell King (Oracle) wrote:
> On Wed, Mar 02, 2022 at 12:19:40PM +0100, Ard Biesheuvel wrote:
> > On Wed, 2 Mar 2022 at 12:12, Russell King (Oracle)
> > <linux@armlinux.org.uk> wrote:
> > >
> > > On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> > > > The crash disappeared (but the suspicious RCU usage is still here).
> > >
> > > As the trace on those is:
> > >
> > > [    0.239629]  unwind_backtrace from show_stack+0x10/0x14
> > > [    0.239654]  show_stack from init_stack+0x1c54/0x2000
> > >
> > > unwind_backtrace() and show_stack() are both C code, the compiler will
> > > emit the unwind information for it. show_stack() isn't called from
> > > assembly code, only from C code, so the next function's unwind
> > > information should also be generated by the compiler.
> > >
> > > However, init_stack is not a function - it's an array of unsigned long.
> > > There is no way this should appear in the trace, and this suggests that
> > > the unwind of show_stack() has gone wrong.
> > >
> > > I don't see anything obvious in Ard's changes that would cause that
> > > though.
> > >
> > > Did it used to work fine with previous versions of linux-next - those
> > > versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
> > > (commit 2fa394824493) and did this only appear when I merged
> > > "arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
> > > "arm-ftrace-for-rmk" cause any change in your .config?
> > >
> > 
> > I can reproduce the RCU warnings, and I have tracked this down to the
> > change I made to return_address() for the graph tracer, which I
> > thought was justified after removing the call to
> > kernel_text_address():
> > 
> > --- a/arch/arm/include/asm/ftrace.h
> > +++ b/arch/arm/include/asm/ftrace.h
> > @@ -35,26 +35,8 @@ static inline unsigned long
> > ftrace_call_adjust(unsigned long addr)
> > 
> >  #ifndef __ASSEMBLY__
> > 
> > -#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
> > -/*
> > - * return_address uses walk_stackframe to do it's work.  If both
> > - * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
> > - * information.  For this to work in the function tracer many functions would
> > - * have to be marked with __notrace.  So for now just depend on
> > - * !CONFIG_ARM_UNWIND.
> > - */
> > -
> >  void *return_address(unsigned int);
> > 
> > -#else
> > -
> > -static inline void *return_address(unsigned int level)
> > -{
> > -       return NULL;
> > -}
> > -
> > -#endif
> > -
> >  #define ftrace_return_address(n) return_address(n)
> > 
> >  #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
> > 
> > However, the function graph tracer works happily with this bit
> > reverted, and so that is probably the best course of action here.
> > 
> > I have already sent the patch that reintroduces the
> > kernel_text_address() check - would you prefer a v2 of that one with
> > this change incorporated? Or a second patch that just reverts the
> > above? (Given that the bogus dereference was invoked from
> > return_address() as well, I suspect that this change would make the
> > get_kernel_nofault() change I proposed in this thread redundant)
> 
> I'd prefer patches on top of my devel-stable branch, thanks.

To reinterate what I've just put on IRC - we have not got to the bottom
of this problem yet - it still very much exists.

There seems to be something of a fundamental issue with the unwinder,
it now appears to be going wrong and failing to unwind beyond a
couple of functions, and the address it's coming out with appears to
be incorrect. I've only just discovered this because I created my very
own bug, and yet again, the timing sucks with the proximity of the
merge window.

I'm getting:

[   13.198803] [<c0017728>] (unwind_backtrace) from [<c0012828>] (show_stack+0x10/0x14)
[   13.198820] [<c0012828>] (show_stack) from [<c2be78d4>] (0xc2be78d4)

for the WARN_ON() stacktrace, and that address that apparently called
show_stack() is most definitely rubbish and incorrect. This makes any
WARN_ON() condition undebuggable.

This is with both 9183/1 and 9184/1 applied on top of pulling your
"arm-ftrace-for-rmk" tag and also with just the "arm-vmap-stacks-v6"
tag. This seems to point at one of these patches breaking the
unwinder:

a1c510d0adc6 ARM: implement support for vmap'ed stacks
532319b9c418 ARM: unwind: disregard unwind info before stack frame is set up
4ab6827081c6 ARM: unwind: dump exception stack from calling frame
b6506981f880 ARM: unwind: support unwinding across multiple stacks

Given that the unwinder is broken, I wonder whether 0183/1 and 9184/1
are actually required.

I did try to point this problem out a few emails back:

"As the trace on those is:

[    0.239629]  unwind_backtrace from show_stack+0x10/0x14
[    0.239654]  show_stack from init_stack+0x1c54/0x2000                        

unwind_backtrace() and show_stack() are both C code, the compiler will
emit the unwind information for it. show_stack() isn't called from
assembly code, only from C code, so the next function's unwind
information should also be generated by the compiler.

However, init_stack is not a function - it's an array of unsigned long.
There is no way this should appear in the trace, and this suggests that
the unwind of show_stack() has gone wrong."

In Corentin's case, there is no way init_stack should ever appear in
the stack trace. In my case, it's not init_stack, but 0xc2be78d4.

Can you try testing out a dummy WARN_ON(1) test in your kernel please?

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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 02, 2022 at 11:22:29AM +0000, Russell King (Oracle) wrote:
> On Wed, Mar 02, 2022 at 12:19:40PM +0100, Ard Biesheuvel wrote:
> > On Wed, 2 Mar 2022 at 12:12, Russell King (Oracle)
> > <linux@armlinux.org.uk> wrote:
> > >
> > > On Wed, Mar 02, 2022 at 11:09:49AM +0100, Corentin Labbe wrote:
> > > > The crash disappeared (but the suspicious RCU usage is still here).
> > >
> > > As the trace on those is:
> > >
> > > [    0.239629]  unwind_backtrace from show_stack+0x10/0x14
> > > [    0.239654]  show_stack from init_stack+0x1c54/0x2000
> > >
> > > unwind_backtrace() and show_stack() are both C code, the compiler will
> > > emit the unwind information for it. show_stack() isn't called from
> > > assembly code, only from C code, so the next function's unwind
> > > information should also be generated by the compiler.
> > >
> > > However, init_stack is not a function - it's an array of unsigned long.
> > > There is no way this should appear in the trace, and this suggests that
> > > the unwind of show_stack() has gone wrong.
> > >
> > > I don't see anything obvious in Ard's changes that would cause that
> > > though.
> > >
> > > Did it used to work fine with previous versions of linux-next - those
> > > versions where we had Ard's "arm-vmap-stacks-v6" tag merged in
> > > (commit 2fa394824493) and did this only appear when I merged
> > > "arm-ftrace-for-rmk" (commit 74aaaa1e9bba) ? Did merging
> > > "arm-ftrace-for-rmk" cause any change in your .config?
> > >
> > 
> > I can reproduce the RCU warnings, and I have tracked this down to the
> > change I made to return_address() for the graph tracer, which I
> > thought was justified after removing the call to
> > kernel_text_address():
> > 
> > --- a/arch/arm/include/asm/ftrace.h
> > +++ b/arch/arm/include/asm/ftrace.h
> > @@ -35,26 +35,8 @@ static inline unsigned long
> > ftrace_call_adjust(unsigned long addr)
> > 
> >  #ifndef __ASSEMBLY__
> > 
> > -#if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND)
> > -/*
> > - * return_address uses walk_stackframe to do it's work.  If both
> > - * CONFIG_FRAME_POINTER=y and CONFIG_ARM_UNWIND=y walk_stackframe uses unwind
> > - * information.  For this to work in the function tracer many functions would
> > - * have to be marked with __notrace.  So for now just depend on
> > - * !CONFIG_ARM_UNWIND.
> > - */
> > -
> >  void *return_address(unsigned int);
> > 
> > -#else
> > -
> > -static inline void *return_address(unsigned int level)
> > -{
> > -       return NULL;
> > -}
> > -
> > -#endif
> > -
> >  #define ftrace_return_address(n) return_address(n)
> > 
> >  #define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
> > 
> > However, the function graph tracer works happily with this bit
> > reverted, and so that is probably the best course of action here.
> > 
> > I have already sent the patch that reintroduces the
> > kernel_text_address() check - would you prefer a v2 of that one with
> > this change incorporated? Or a second patch that just reverts the
> > above? (Given that the bogus dereference was invoked from
> > return_address() as well, I suspect that this change would make the
> > get_kernel_nofault() change I proposed in this thread redundant)
> 
> I'd prefer patches on top of my devel-stable branch, thanks.

To reinterate what I've just put on IRC - we have not got to the bottom
of this problem yet - it still very much exists.

There seems to be something of a fundamental issue with the unwinder,
it now appears to be going wrong and failing to unwind beyond a
couple of functions, and the address it's coming out with appears to
be incorrect. I've only just discovered this because I created my very
own bug, and yet again, the timing sucks with the proximity of the
merge window.

I'm getting:

[   13.198803] [<c0017728>] (unwind_backtrace) from [<c0012828>] (show_stack+0x10/0x14)
[   13.198820] [<c0012828>] (show_stack) from [<c2be78d4>] (0xc2be78d4)

for the WARN_ON() stacktrace, and that address that apparently called
show_stack() is most definitely rubbish and incorrect. This makes any
WARN_ON() condition undebuggable.

This is with both 9183/1 and 9184/1 applied on top of pulling your
"arm-ftrace-for-rmk" tag and also with just the "arm-vmap-stacks-v6"
tag. This seems to point at one of these patches breaking the
unwinder:

a1c510d0adc6 ARM: implement support for vmap'ed stacks
532319b9c418 ARM: unwind: disregard unwind info before stack frame is set up
4ab6827081c6 ARM: unwind: dump exception stack from calling frame
b6506981f880 ARM: unwind: support unwinding across multiple stacks

Given that the unwinder is broken, I wonder whether 0183/1 and 9184/1
are actually required.

I did try to point this problem out a few emails back:

"As the trace on those is:

[    0.239629]  unwind_backtrace from show_stack+0x10/0x14
[    0.239654]  show_stack from init_stack+0x1c54/0x2000                        

unwind_backtrace() and show_stack() are both C code, the compiler will
emit the unwind information for it. show_stack() isn't called from
assembly code, only from C code, so the next function's unwind
information should also be generated by the compiler.

However, init_stack is not a function - it's an array of unsigned long.
There is no way this should appear in the trace, and this suggests that
the unwind of show_stack() has gone wrong."

In Corentin's case, there is no way init_stack should ever appear in
the stack trace. In my case, it's not init_stack, but 0xc2be78d4.

Can you try testing out a dummy WARN_ON(1) test in your kernel please?

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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 09, 2022 at 12:01:26AM +0000, Russell King (Oracle) wrote:
> To reinterate what I've just put on IRC - we have not got to the bottom
> of this problem yet - it still very much exists.
> 
> There seems to be something of a fundamental issue with the unwinder,
> it now appears to be going wrong and failing to unwind beyond a
> couple of functions, and the address it's coming out with appears to
> be incorrect. I've only just discovered this because I created my very
> own bug, and yet again, the timing sucks with the proximity of the
> merge window.
> 
> I'm getting:
> 
> [   13.198803] [<c0017728>] (unwind_backtrace) from [<c0012828>] (show_stack+0x10/0x14)
> [   13.198820] [<c0012828>] (show_stack) from [<c2be78d4>] (0xc2be78d4)
> 
> for the WARN_ON() stacktrace, and that address that apparently called
> show_stack() is most definitely rubbish and incorrect. This makes any
> WARN_ON() condition undebuggable.
> 
> This is with both 9183/1 and 9184/1 applied on top of pulling your
> "arm-ftrace-for-rmk" tag and also with just the "arm-vmap-stacks-v6"
> tag. This seems to point at one of these patches breaking the
> unwinder:
> 
> a1c510d0adc6 ARM: implement support for vmap'ed stacks
> 532319b9c418 ARM: unwind: disregard unwind info before stack frame is set up

The above commit appears to be what's breaking the unwinder. Without
this I get sane stacktraces. With it, the unwinder spits out stupid
function addresses.

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Re: boot flooded with unwind: Index not found

[Russell King (Oracle)]

On Wed, Mar 09, 2022 at 12:01:26AM +0000, Russell King (Oracle) wrote:
> To reinterate what I've just put on IRC - we have not got to the bottom
> of this problem yet - it still very much exists.
> 
> There seems to be something of a fundamental issue with the unwinder,
> it now appears to be going wrong and failing to unwind beyond a
> couple of functions, and the address it's coming out with appears to
> be incorrect. I've only just discovered this because I created my very
> own bug, and yet again, the timing sucks with the proximity of the
> merge window.
> 
> I'm getting:
> 
> [   13.198803] [<c0017728>] (unwind_backtrace) from [<c0012828>] (show_stack+0x10/0x14)
> [   13.198820] [<c0012828>] (show_stack) from [<c2be78d4>] (0xc2be78d4)
> 
> for the WARN_ON() stacktrace, and that address that apparently called
> show_stack() is most definitely rubbish and incorrect. This makes any
> WARN_ON() condition undebuggable.
> 
> This is with both 9183/1 and 9184/1 applied on top of pulling your
> "arm-ftrace-for-rmk" tag and also with just the "arm-vmap-stacks-v6"
> tag. This seems to point at one of these patches breaking the
> unwinder:
> 
> a1c510d0adc6 ARM: implement support for vmap'ed stacks
> 532319b9c418 ARM: unwind: disregard unwind info before stack frame is set up

The above commit appears to be what's breaking the unwinder. Without
this I get sane stacktraces. With it, the unwinder spits out stupid
function addresses.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 9 Mar 2022 at 02:08, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Wed, Mar 09, 2022 at 12:01:26AM +0000, Russell King (Oracle) wrote:
> > To reinterate what I've just put on IRC - we have not got to the bottom
> > of this problem yet - it still very much exists.
> >
> > There seems to be something of a fundamental issue with the unwinder,
> > it now appears to be going wrong and failing to unwind beyond a
> > couple of functions, and the address it's coming out with appears to
> > be incorrect. I've only just discovered this because I created my very
> > own bug, and yet again, the timing sucks with the proximity of the
> > merge window.
> >
> > I'm getting:
> >
> > [   13.198803] [<c0017728>] (unwind_backtrace) from [<c0012828>] (show_stack+0x10/0x14)
> > [   13.198820] [<c0012828>] (show_stack) from [<c2be78d4>] (0xc2be78d4)
> >
> > for the WARN_ON() stacktrace, and that address that apparently called
> > show_stack() is most definitely rubbish and incorrect. This makes any
> > WARN_ON() condition undebuggable.
> >
> > This is with both 9183/1 and 9184/1 applied on top of pulling your
> > "arm-ftrace-for-rmk" tag and also with just the "arm-vmap-stacks-v6"
> > tag. This seems to point at one of these patches breaking the
> > unwinder:
> >
> > a1c510d0adc6 ARM: implement support for vmap'ed stacks
> > 532319b9c418 ARM: unwind: disregard unwind info before stack frame is set up
>
> The above commit appears to be what's breaking the unwinder. Without
> this I get sane stacktraces. With it, the unwinder spits out stupid
> function addresses.
>

OK, then let's revert that patch. It reduces the likelihood that we
can show a sane stacktrace when the stack overflows, but that is not
the end of the world: the important bit is that it gets caught and
that the offending task is terminated.

We can revisit this in the next cycle.

I do think 9183/1 and 9184/1 should be kept, though. There are
definitely cases such as Corentin's that are different from yours
where we might see spurious warnings otherwise.

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Re: boot flooded with unwind: Index not found

[Ard Biesheuvel]

On Wed, 9 Mar 2022 at 02:08, Russell King (Oracle)
<linux@armlinux.org.uk> wrote:
>
> On Wed, Mar 09, 2022 at 12:01:26AM +0000, Russell King (Oracle) wrote:
> > To reinterate what I've just put on IRC - we have not got to the bottom
> > of this problem yet - it still very much exists.
> >
> > There seems to be something of a fundamental issue with the unwinder,
> > it now appears to be going wrong and failing to unwind beyond a
> > couple of functions, and the address it's coming out with appears to
> > be incorrect. I've only just discovered this because I created my very
> > own bug, and yet again, the timing sucks with the proximity of the
> > merge window.
> >
> > I'm getting:
> >
> > [   13.198803] [<c0017728>] (unwind_backtrace) from [<c0012828>] (show_stack+0x10/0x14)
> > [   13.198820] [<c0012828>] (show_stack) from [<c2be78d4>] (0xc2be78d4)
> >
> > for the WARN_ON() stacktrace, and that address that apparently called
> > show_stack() is most definitely rubbish and incorrect. This makes any
> > WARN_ON() condition undebuggable.
> >
> > This is with both 9183/1 and 9184/1 applied on top of pulling your
> > "arm-ftrace-for-rmk" tag and also with just the "arm-vmap-stacks-v6"
> > tag. This seems to point at one of these patches breaking the
> > unwinder:
> >
> > a1c510d0adc6 ARM: implement support for vmap'ed stacks
> > 532319b9c418 ARM: unwind: disregard unwind info before stack frame is set up
>
> The above commit appears to be what's breaking the unwinder. Without
> this I get sane stacktraces. With it, the unwinder spits out stupid
> function addresses.
>

OK, then let's revert that patch. It reduces the likelihood that we
can show a sane stacktrace when the stack overflows, but that is not
the end of the world: the important bit is that it gets caught and
that the offending task is terminated.

We can revisit this in the next cycle.

I do think 9183/1 and 9184/1 should be kept, though. There are
definitely cases such as Corentin's that are different from yours
where we might see spurious warnings otherwise.

Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Tue, Mar 01, 2022 at 03:49:41PM +0000, Russell King (Oracle) a écrit :
> On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > Hello
> > 
> > I booted today linux-next (20220301) and my boot is flooded with:
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> > 
> > This happen on a sun8i-a83t-bananapi-m3
> 
> Have you enabled vmapped stacks?
> 

Yes, I have CONFIG_VMAP_STACK=y in my .config

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Re: boot flooded with unwind: Index not found

[Corentin Labbe]

Le Tue, Mar 01, 2022 at 03:49:41PM +0000, Russell King (Oracle) a écrit :
> On Tue, Mar 01, 2022 at 04:48:25PM +0100, Corentin Labbe wrote:
> > Hello
> > 
> > I booted today linux-next (20220301) and my boot is flooded with:
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> > [    0.000000] unwind: Index not found c0f0c440
> > [    0.000000] unwind: Index not found 00000000
> > 
> > This happen on a sun8i-a83t-bananapi-m3
> 
> Have you enabled vmapped stacks?
> 

Yes, I have CONFIG_VMAP_STACK=y in my .config