arm64: csdlock at early boot due to slow serial (?)

arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

Hello,

I'm observing two unusual behaviors during the boot process on my SBSA
ARM machine, with upstream kernel (6.16-rc4):

1) A 9-second pause during early boot:

	[    0.000000] ACPI: SPCR: console: pl011,mmio32,0xc280000,115200
	[    0.420120] Serial: AMBA PL011 UART driver
	[    0.875263] printk: console [ttyAMA0] enabled
	[    9.848263] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])

2) Occasional CSD lock during early boot:

Intermittently, I encounter a CSD lock. Diagnosing this was challenging, but
after enabling PSEUDO NMI, I was able to capture the stack trace:

	printk: console [ttyAMA0] enabled
	smp: csd: Detected non-responsive CSD lock (#1) on CPU#0, waiting 5001000000 ns for CPU#02 do_nothing (kernel/smp.c:1058)
	smp:     csd: CSD lock (#1) unresponsive.
	Sending NMI from CPU 0 to CPUs 2:
	....
	pl011_console_write_atomic (./arch/arm64/include/asm/vdso/processor.h:12 drivers/tty/serial/amba-pl011.c:2540) (P)
	nbcon_emit_next_record (kernel/printk/nbcon.c:1030)
	__nbcon_atomic_flush_pending_con (kernel/printk/nbcon.c:1498)
	__nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1541 kernel/printk/nbcon.c:1593)
	nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1610)
	vprintk_emit (kernel/printk/printk.c:2429)

On reviewing the amba-pl011.c code, I noticed that each message being flushed
causes the following loop to iterate roughly 20,000 times:

          while ((pl011_read(uap, REG_FR) ^ uap->vendor->inv_fr) & uap->vendor->fr_busy)
                  cpu_relax();

Tracing this, I found that flushing early boot messages is taking a significant
amount of time. For example, trace_printk() output from that function shows:

       swapper/0-1       [000] dN...     9.695941: pl011_console_write_atomic: "[    0.928995] printk: console [ttyAMA0] enabled"
											|
       											-> This is trace_printk of wctxt->outbuf

At timestamp 9.69 seconds, the serial console is still flushing messages from
0.92 seconds, indicating that the initial 9-second gap is spent looping in
cpu_relax()—about 20,000 times per message, which is clearly suboptimal.

Further debugging revealed the following sequence with the pl011 registers:

	1) uart_console_write()
	2) REG_FR has BUSY | RXFE | TXFF for a while (~1k cpu_relax())
	3) RXFE and TXFF are cleaned, and BUSY stay on for another 17k-19k cpu_relax()

Michael has reported a hardware issue where the BUSY bit could get
stuck (see commit d8a4995bcea1: "tty: pl011: Work around QDF2400 E44 stuck BUSY
bit"), which is very similar. TXFE goes down, but BUSY is(?) still stuck for long.

If I am having the same hardware issue, I suppose I need to change that logic
to exist the cpu_relax() loop by checking when Transmit FIFO Empty (TXFE) is 0
instead of BUSY.

Anyway, any one familar with this weird behaviour?

Thanks
--breno

Re: arm64: csdlock at early boot due to slow serial (?)

[Leo Yan]

Hi Breno,

On Wed, Jul 02, 2025 at 10:10:21AM -0700, Breno Leitao wrote:

[...]

> Further debugging revealed the following sequence with the pl011 registers:
> 
> 	1) uart_console_write()
> 	2) REG_FR has BUSY | RXFE | TXFF for a while (~1k cpu_relax())
> 	3) RXFE and TXFF are cleaned, and BUSY stay on for another 17k-19k cpu_relax()
> 
> Michael has reported a hardware issue where the BUSY bit could get
> stuck (see commit d8a4995bcea1: "tty: pl011: Work around QDF2400 E44 stuck BUSY
> bit"), which is very similar. TXFE goes down, but BUSY is(?) still stuck for long.
> 
> If I am having the same hardware issue, I suppose I need to change that logic
> to exist the cpu_relax() loop by checking when Transmit FIFO Empty (TXFE) is 0
> instead of BUSY.
> 
> Anyway, any one familar with this weird behaviour?

To be clear, I am not familiar with pl011 driver.

For the first step, could you confirm the UART port is only used by
Linux kernel?

In some cases, if normal world and secure world share the same UART
port, it can cause the UART state machine malfunction and long wait.

Thanks,
Leo

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

On Wed, Jul 02, 2025 at 06:20:36PM +0100, Leo Yan wrote:
> Hi Breno,
> 
> On Wed, Jul 02, 2025 at 10:10:21AM -0700, Breno Leitao wrote:
> 
> [...]
> 
> > Further debugging revealed the following sequence with the pl011 registers:
> > 
> > 	1) uart_console_write()
> > 	2) REG_FR has BUSY | RXFE | TXFF for a while (~1k cpu_relax())
> > 	3) RXFE and TXFF are cleaned, and BUSY stay on for another 17k-19k cpu_relax()
> > 
> > Michael has reported a hardware issue where the BUSY bit could get
> > stuck (see commit d8a4995bcea1: "tty: pl011: Work around QDF2400 E44 stuck BUSY
> > bit"), which is very similar. TXFE goes down, but BUSY is(?) still stuck for long.
> > 
> > If I am having the same hardware issue, I suppose I need to change that logic
> > to exist the cpu_relax() loop by checking when Transmit FIFO Empty (TXFE) is 0
> > instead of BUSY.
> > 
> > Anyway, any one familar with this weird behaviour?
> 
> To be clear, I am not familiar with pl011 driver.
> 
> For the first step, could you confirm the UART port is only used by
> Linux kernel?
> 
> In some cases, if normal world and secure world share the same UART
> port, it can cause the UART state machine malfunction and long wait.

I don't know how to check it for sure, but, looking at the serial
console output, I don't see anything else using the UART. The only
output I see on the console at that time is coming from linux kernel.

Would you recommend any additional check?

Thanks for the reply,
--breno

Re: arm64: csdlock at early boot due to slow serial (?)

[Leo Yan]

On Thu, Jul 03, 2025 at 03:02:39AM -0700, Breno Leitao wrote:

[...]

> > In some cases, if normal world and secure world share the same UART
> > port, it can cause the UART state machine malfunction and long wait.
> 
> I don't know how to check it for sure, but, looking at the serial
> console output, I don't see anything else using the UART. The only
> output I see on the console at that time is coming from linux kernel.
> 
> Would you recommend any additional check?

I have no experience in the driver, I should avoid any noise. But two
things in my head for quick trying.

- First, you could try earlycon mode, e.g., add option in kernel
  command line:
  
    earlycon=pl011,mmio32,0xc280000
    earlycon=pl011,0xc280000

  This would be possible to give more printing logs. If earlycon works
  well, then the issue might be caused by later init code (clock, or
  UART driver itself).

- Try another UART port if this is possible.

Just curious, you mentioned you are working on the mainline kernel. If
you can confirm a workable kernel version, then this info can help to
rule out hardware issue and we can review the delta changes.

Thanks,
Leo

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

Hello Leo,

On Thu, Jul 03, 2025 at 12:45:57PM +0100, Leo Yan wrote:
> On Thu, Jul 03, 2025 at 03:02:39AM -0700, Breno Leitao wrote:
> > > In some cases, if normal world and secure world share the same UART
> > > port, it can cause the UART state machine malfunction and long wait.
> > 
> > I don't know how to check it for sure, but, looking at the serial
> > console output, I don't see anything else using the UART. The only
> > output I see on the console at that time is coming from linux kernel.
> > 
> > Would you recommend any additional check?
> 
> I have no experience in the driver, I should avoid any noise. But two
> things in my head for quick trying.
> 
> - First, you could try earlycon mode, e.g., add option in kernel
>   command line:
>   
>     earlycon=pl011,mmio32,0xc280000
>     earlycon=pl011,0xc280000
> 
>   This would be possible to give more printing logs. If earlycon works
>   well, then the issue might be caused by later init code (clock, or
>   UART driver itself).

That is an interesting experiment, thanks for the heads-up.

I got `earlycon=pl011,mmio32,0xc280000` working, the machine boots fine,
and I see different behaviours.

Booting up the system the following lines (as examples):

	[    0.000000] earlycon: pl11 at MMIO32 0x000000000c280000 (options '115200')
	[    0.000000] printk: legacy bootconsole [pl11] enabled
	[    0.493205] smp: Brought up 1 node, 72 CPUs
	[    4.232864] SMP: Total of 72 processors activated.
	[    4.242788] CPU: All CPU(s) started at EL2
	[    6.318137] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
	[    6.978245] netpoll: netconsole: local port 6666
	[    7.234429] Run /init as init process

Also, I have a trace_printk() in pl011_console_write_atomic, and it only
start later in the code. More precisely at:

       swapper/0-1       [000] dN.1.     6.334581: pl011_console_write_atomic: Printing 49 [    6.334573] printk: console [ttyAMA0] enabled

I understand that the early boot messages got sent by some other
function? (Or maybe the tracing framework was not initialized?)

Anyway, pl011_console_write_atomic() continues to call ~20K times cpu_relax()
waiting for the BUSY bit to disappear, as before.

For comparison, these are the same line as above, when earlycon is not
set:

	[    0.154009] smp: Brought up 1 node, 72 CPUs
	[    0.154012] SMP: Total of 72 processors activated.
	[    0.154013] CPU: All CPU(s) started at EL2
	[    0.466949] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
	[    0.466967] printk: console [ttyAMA0] enabled
	[    0.466949] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
	[    5.513307] smp: csd: Detected non-responsive CSD lock (#1) on CPU#0, waiting 5001000000 ns for CPU#05 do_nothing+0x0/0x10(0x0).
	[   10.719305] netpoll: netconsole: local port 6666
	[   10.961798] Run /init as init process


From what I see, using earlycon boots the kernel faster. Here are some
ideas I got:

	1) Earlycon enables the message to be printed earlier, thus, it smooth
	out the serial console

	2) without earlycon, the messages are printed at once, with interrupt
	disabled
	 2.a) This causes CSD locks
	 2.b) CSD locks caused an additional 3 seconds delay

	3) pl011_console_write_atomic is slow on both cases

Thanks for the good suggestion,
--breno

Re: arm64: csdlock at early boot due to slow serial (?)

[Leo Yan]

Hi Breno,

On Thu, Jul 03, 2025 at 04:01:54PM +0100, Breno Leitao wrote:

[...]

> That is an interesting experiment, thanks for the heads-up.
> 
> I got `earlycon=pl011,mmio32,0xc280000` working, the machine boots fine,
> and I see different behaviours.
> 
> Booting up the system the following lines (as examples):
> 
> 	[    0.000000] earlycon: pl11 at MMIO32 0x000000000c280000 (options '115200')
> 	[    0.000000] printk: legacy bootconsole [pl11] enabled
> 	[    0.493205] smp: Brought up 1 node, 72 CPUs
> 	[    4.232864] SMP: Total of 72 processors activated.
> 	[    4.242788] CPU: All CPU(s) started at EL2
> 	[    6.318137] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
> 	[    6.978245] netpoll: netconsole: local port 6666
> 	[    7.234429] Run /init as init process
> 
> Also, I have a trace_printk() in pl011_console_write_atomic, and it only
> start later in the code. More precisely at:
> 
>        swapper/0-1       [000] dN.1.     6.334581: pl011_console_write_atomic: Printing 49 [    6.334573] printk: console [ttyAMA0] enabled
> 
> I understand that the early boot messages got sent by some other
> function? (Or maybe the tracing framework was not initialized?)
> 
> Anyway, pl011_console_write_atomic() continues to call ~20K times cpu_relax()
> waiting for the BUSY bit to disappear, as before.

If earlycon works correctly, it means the UART clock has been prepared
before the kernel boots.

I noticed that pl011_console_write_atomic() enables and disables the
uap->clk clock dynamically. The clock is a SoC implementation. If the
UART clock is already properly enabled for earlycon, we can assume it
doesn't need to be managed again in the UART driver.

So, perhaps it's worth an experiment by commenting out the clock
operations in the UART driver?

Thanks,
Leo

Re: arm64: csdlock at early boot due to slow serial (?)

[Mark Rutland]

Hi Breno,

On Wed, Jul 02, 2025 at 10:10:21AM -0700, Breno Leitao wrote:
> Hello,
> 
> I'm observing two unusual behaviors during the boot process on my SBSA
> ARM machine, with upstream kernel (6.16-rc4):

Can you say which SoC in particular that is? Knowing that would help to
identify whether there's some known erratum, clocking issue, etc.

Likewise that might imply more folk to add to Cc.

[...]

> At timestamp 9.69 seconds, the serial console is still flushing messages from
> 0.92 seconds, indicating that the initial 9-second gap is spent looping in
> cpu_relax()—about 20,000 times per message, which is clearly suboptimal.
> 
> Further debugging revealed the following sequence with the pl011 registers:
> 
> 	1) uart_console_write()
> 	2) REG_FR has BUSY | RXFE | TXFF for a while (~1k cpu_relax())
> 	3) RXFE and TXFF are cleaned, and BUSY stay on for another 17k-19k cpu_relax()
> 
> Michael has reported a hardware issue where the BUSY bit could get
> stuck (see commit d8a4995bcea1: "tty: pl011: Work around QDF2400 E44 stuck BUSY
> bit"), which is very similar. TXFE goes down, but BUSY is(?) still stuck for long.

Looking at the commit message, that was an issue with the a "custom
(non-PrimeCell) implementation of the SBSA UART" present on QDF400. I
assume that was soemthing that Qualcomm Datacenter Technologies designed
themselves.

It's possible that your SoC has a similar issue with whatever IP block
is being used as the UART, but the issue in that commit certainly
doesn't apply to most PL011 / SBSA-UART implementations.

> If I am having the same hardware issue, I suppose I need to change that logic
> to exist the cpu_relax() loop by checking when Transmit FIFO Empty (TXFE) is 0
> instead of BUSY.

If you have the same issue, then applying the same workaround makes
sense. As above, it's not clear that this is necessarily the same issue.
Any more detail that you can share regarding the SoC would be very
helpful.

Mark.

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

On Thu, Jul 03, 2025 at 11:28:50AM +0100, Mark Rutland wrote:
> On Wed, Jul 02, 2025 at 10:10:21AM -0700, Breno Leitao wrote:
> > I'm observing two unusual behaviors during the boot process on my SBSA
> > ARM machine, with upstream kernel (6.16-rc4):
> 
> Can you say which SoC in particular that is? Knowing that would help to
> identify whether there's some known erratum, clocking issue, etc.

This is custom made rack mounted machine based on Grace CPU. Here are
some info about the hardware:

	# lscpu:
		Vendor ID:                   ARM
		  Model name:                Neoverse-V2
		    Model:                   0
		    Thread(s) per core:      1
		    Core(s) per socket:      72
		    Socket(s):               1
		    Stepping:                r0p0

	# /proc/cpuinfo
		processor	: 71
		BogoMIPS	: 2000.00
		Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh bti
		CPU implementer	: 0x41
		CPU architecture: 8
		CPU variant	: 0x0
		CPU part	: 0xd4f
		CPU revision	: 0

	# lshw
	    description: Rack Mount Chassis
	    product: <Internal name>
	    vendor: Quanta
	    version: <Internal name>
	    width: 64 bits
	    capabilities: smbios-3.6.0 dmi-3.6.0 smp sve_default_vector_length tagged_addr_disabled
	    configuration: boot=normal chassis=rackmount family=Default string sku=Default string uuid=...

How do I find the SoC exactly?

> Likewise that might imply more folk to add to Cc.
> 
> [...]
> 
> > At timestamp 9.69 seconds, the serial console is still flushing messages from
> > 0.92 seconds, indicating that the initial 9-second gap is spent looping in
> > cpu_relax()-about 20,000 times per message, which is clearly suboptimal.
> > 
> > Further debugging revealed the following sequence with the pl011 registers:
> > 
> > 	1) uart_console_write()
> > 	2) REG_FR has BUSY | RXFE | TXFF for a while (~1k cpu_relax())
> > 	3) RXFE and TXFF are cleaned, and BUSY stay on for another 17k-19k cpu_relax()
> > 
> > Michael has reported a hardware issue where the BUSY bit could get
> > stuck (see commit d8a4995bcea1: "tty: pl011: Work around QDF2400 E44 stuck BUSY
> > bit"), which is very similar. TXFE goes down, but BUSY is(?) still stuck for long.
> 
> Looking at the commit message, that was an issue with the a "custom
> (non-PrimeCell) implementation of the SBSA UART" present on QDF400. I
> assume that was soemthing that Qualcomm Datacenter Technologies designed
> themselves.
> 
> It's possible that your SoC has a similar issue with whatever IP block
> is being used as the UART, but the issue in that commit certainly
> doesn't apply to most PL011 / SBSA-UART implementations.

That makes total sense. Decoding SPCR I see the following:

	# iasl -d spcr.dat
	Intel ACPI Component Architecture
	ASL+ Optimizing Compiler/Disassembler version 20210604
	Copyright (c) 2000 - 2021 Intel Corporation

	File appears to be binary: found 56 non-ASCII characters, disassembling
	Binary file appears to be a valid ACPI table, disassembling
	Input file spcr.dat, Length 0x50 (80) bytes
	ACPI: SPCR 0x0000000000000000 000050 (v02 NVIDIA A M I    00000001 ARMH 00010000)
	Acpi Data Table [SPCR] decoded
	Formatted output:  spcr.dsl - 2624 bytes

Thanks,
--breno

Re: arm64: csdlock at early boot due to slow serial (?)

[Mark Rutland]

On Thu, Jul 03, 2025 at 03:13:26PM +0100, Breno Leitao wrote:
> On Thu, Jul 03, 2025 at 11:28:50AM +0100, Mark Rutland wrote:
> > On Wed, Jul 02, 2025 at 10:10:21AM -0700, Breno Leitao wrote:
> > > I'm observing two unusual behaviors during the boot process on my SBSA
> > > ARM machine, with upstream kernel (6.16-rc4):
> > 
> > Can you say which SoC in particular that is? Knowing that would help to
> > identify whether there's some known erratum, clocking issue, etc.
> 
> This is custom made rack mounted machine based on Grace CPU. Here are
> some info about the hardware:
> 
> 	# lscpu:
> 		Vendor ID:                   ARM
> 		  Model name:                Neoverse-V2
> 		    Model:                   0
> 		    Thread(s) per core:      1
> 		    Core(s) per socket:      72
> 		    Socket(s):               1
> 		    Stepping:                r0p0
> 
> 	# /proc/cpuinfo
> 		processor	: 71
> 		BogoMIPS	: 2000.00
> 		Features	: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jscvt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flagm sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint svei8mm svebf16 i8mm bf16 dgh bti
> 		CPU implementer	: 0x41
> 		CPU architecture: 8
> 		CPU variant	: 0x0
> 		CPU part	: 0xd4f
> 		CPU revision	: 0
> 
> 	# lshw
> 	    description: Rack Mount Chassis
> 	    product: <Internal name>
> 	    vendor: Quanta
> 	    version: <Internal name>
> 	    width: 64 bits
> 	    capabilities: smbios-3.6.0 dmi-3.6.0 smp sve_default_vector_length tagged_addr_disabled
> 	    configuration: boot=normal chassis=rackmount family=Default string sku=Default string uuid=...
> 
> How do I find the SoC exactly?

From what you've told me above, the SoC is Nvidia Grace; what they call
the CPU is the whole SoC.

> > Likewise that might imply more folk to add to Cc.

I've added Ankit and Besar, since they've both worked on some system
level bits on Grace, and might have an idea.

Ankit, Besar, are you aware of any UART issues on Grace (as described in
Breno's messages below), or do you know of anyone who might have an
idea?

Thanks,
Mark.

> > [...]
> > 
> > > At timestamp 9.69 seconds, the serial console is still flushing messages from
> > > 0.92 seconds, indicating that the initial 9-second gap is spent looping in
> > > cpu_relax()-about 20,000 times per message, which is clearly suboptimal.
> > > 
> > > Further debugging revealed the following sequence with the pl011 registers:
> > > 
> > > 	1) uart_console_write()
> > > 	2) REG_FR has BUSY | RXFE | TXFF for a while (~1k cpu_relax())
> > > 	3) RXFE and TXFF are cleaned, and BUSY stay on for another 17k-19k cpu_relax()
> > > 
> > > Michael has reported a hardware issue where the BUSY bit could get
> > > stuck (see commit d8a4995bcea1: "tty: pl011: Work around QDF2400 E44 stuck BUSY
> > > bit"), which is very similar. TXFE goes down, but BUSY is(?) still stuck for long.
> > 
> > Looking at the commit message, that was an issue with the a "custom
> > (non-PrimeCell) implementation of the SBSA UART" present on QDF400. I
> > assume that was soemthing that Qualcomm Datacenter Technologies designed
> > themselves.
> > 
> > It's possible that your SoC has a similar issue with whatever IP block
> > is being used as the UART, but the issue in that commit certainly
> > doesn't apply to most PL011 / SBSA-UART implementations.
> 
> That makes total sense. Decoding SPCR I see the following:
> 
> 	# iasl -d spcr.dat
> 	Intel ACPI Component Architecture
> 	ASL+ Optimizing Compiler/Disassembler version 20210604
> 	Copyright (c) 2000 - 2021 Intel Corporation
> 
> 	File appears to be binary: found 56 non-ASCII characters, disassembling
> 	Binary file appears to be a valid ACPI table, disassembling
> 	Input file spcr.dat, Length 0x50 (80) bytes
> 	ACPI: SPCR 0x0000000000000000 000050 (v02 NVIDIA A M I    00000001 ARMH 00010000)
> 	Acpi Data Table [SPCR] decoded
> 	Formatted output:  spcr.dsl - 2624 bytes
> 
> Thanks,
> --breno

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

On Thu, Jul 03, 2025 at 05:31:09PM +0100, Mark Rutland wrote:

> > How do I find the SoC exactly?
> 
> >From what you've told me above, the SoC is Nvidia Grace; what they call
> the CPU is the whole SoC.
> 
> > > Likewise that might imply more folk to add to Cc.
> 
> I've added Ankit and Besar, since they've both worked on some system
> level bits on Grace, and might have an idea.
> 
> Ankit, Besar, are you aware of any UART issues on Grace (as described in
> Breno's messages below), or do you know of anyone who might have an
> idea?

Here is more information I got about this problem. TL;DR: While the
machine is booting, it is throttled by the UART speed, while having IRQ
disabled.

Here is my line of investigation:

1) when the kernel start to flush the messages, there are ~700 messages
   in the buffer that will be flushed using
   pl011_console_write_atomic()

	[    0.653673] printk: console [ttyAMA0] enabled
	[    9.239225] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])

 a) pl011_console_write_atomic() is called  ~700 times. Each message
 have around 50 chars.

 b) For each char, it needs to wait for it to be sent before proceeding.

3) pl011_console_write_atomic() have two big while()/cpu_relax() blocks.
   One per character and one per message.

    a) the first one is in pl011_console_putchar(), where it checks if the
    FIFO is full before writing a single character. This is done one per
    character.

          while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
                  cpu_relax();
	 
    b) After the line is written, then it hits the second one, in
    pl011_console_write_atomic(), where it waits until the controller is
    not busy anymore:

              while ((pl011_read(uap, REG_FR) ^ uap->vendor->inv_fr) & uap->vendor->fr_busy)
                  cpu_relax();
	

4) The controller has FIFO enabled, but, it doesn't help much, because
   the CPU is waiting for the 700 * 50 chars to be transmitted.

5) At this time we just have one single CPU online (?)

6) This is done with IRQ disabled, which causes a CSD lock to trigger,
   given that the CPU has IRQ disabled


   a) Following Paul's suggestion, I added
   a `lockdep_assert_irqs_enabled()` at the entrance of
   pl011_console_write_atomic(), and that is what I see.

	hardirqs last  enabled at (256267): [<ffff800080364980>] vprintk_store+0x6f8/0x820
	hardirqs last disabled at (256268): [<ffff80008036e1c4>] __nbcon_atomic_flush_pending+0x2c4/0x3e8
	softirqs last  enabled at (255640): [<ffff8000801bb020>] handle_softirqs+0x910/0xe78
	softirqs last disabled at (255635): [<ffff800080010938>] __do_softirq+0x18/0x20

  b) This is the full stack in how we are calling cpu_relax() with irq
  disabled million times:

	WARNING: CPU: 0 PID: 1 at drivers/tty/serial/amba-pl011.c:2545 pl011_console_write_atomic (drivers/tty/serial/amba-pl011.c:2545)
	Modules linked in:
	pstate: 234003c9 (nzCv DAIF +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
	pc : pl011_console_write_atomic (drivers/tty/serial/amba-pl011.c:2545)
	lr : pl011_console_write_atomic (drivers/tty/serial/amba-pl011.c:2545)
	sp : ffff80008980dca0
	pmr: 000000f0
	x29: ffff80008980dca0 x28: ffff0000aebcc080 x27: dfff800000000000
	x26: 1fffe00015d7985a x25: 0000000000000000 x24: 0000000000000000
	x23: ffff0000a1800000 x22: ffff800087e6d7f8 x21: 1fffe00015d7985b
	x20: ffff80008980dee0 x19: 0000000000000003 x18: 00000000ffffffff
	x17: 30313478305b2030 x16: 3030303230303030 x15: 3078302055504320
	x14: 6c61636973796870 x13: 0a2a2a2065676173 x12: ffff700011301b8b
	x11: 1ffff00011301b8a x10: ffff700011301b8a x9 : ffff800081eafdb4
	x8 : 0000000000000004 x7 : 0000000000000003 x6 : 0000000000000000
	x5 : 1ffff00011301be2 x4 : 0000000000000018 x3 : 0000000000000000
	x2 : 1ffff00010fcdb57 x1 : 0000000000000000 x0 : 0000000000000001
	Call trace:
	pl011_console_write_atomic (drivers/tty/serial/amba-pl011.c:2545) (P)
	nbcon_emit_next_record (kernel/printk/nbcon.c:1026)
	__nbcon_atomic_flush_pending_con (kernel/printk/nbcon.c:1498)
	__nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1541 kernel/printk/nbcon.c:1593)
	nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1610)
	vprintk_emit (kernel/printk/printk.c:2429)
	vprintk_default (kernel/printk/printk.c:2466)
	vprintk (kernel/printk/printk_safe.c:83)
	_printk (kernel/printk/printk.c:2470)
	__warn (kernel/panic.c:768)
	report_bug (lib/bug.c:197 lib/bug.c:215)
	bug_handler (arch/arm64/kernel/traps.c:1002)
	call_break_hook (arch/arm64/kernel/debug-monitors.c:319)
	brk_handler (arch/arm64/kernel/debug-monitors.c:325)
	do_debug_exception (arch/arm64/mm/fault.c:1002)
	el1_dbg (arch/arm64/kernel/entry-common.c:514)
	el1h_64_sync_handler (arch/arm64/kernel/entry-common.c:567)
	el1h_64_sync (arch/arm64/kernel/entry.S:595)
	pl011_console_write_atomic (drivers/tty/serial/amba-pl011.c:2524) (P)
	nbcon_emit_next_record (kernel/printk/nbcon.c:1026)
	__nbcon_atomic_flush_pending_con (kernel/printk/nbcon.c:1498)
	__nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1541 kernel/printk/nbcon.c:1593)
	nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1610)
	vprintk_emit (kernel/printk/printk.c:2429)
	vprintk_default (kernel/printk/printk.c:2466)
	vprintk (kernel/printk/printk_safe.c:83)
	_printk (kernel/printk/printk.c:2470)
	register_console (kernel/printk/printk.c:4126 (discriminator 9))
	serial_core_register_port (drivers/tty/serial/serial_core.c:2637 drivers/tty/serial/serial_core.c:3157 drivers/tty/serial/serial_core.c:3388)
	serial_ctrl_register_port (drivers/tty/serial/serial_ctrl.c:42)
	uart_add_one_port (drivers/tty/serial/serial_port.c:144)
	pl011_register_port (drivers/tty/serial/amba-pl011.c:2867)
	sbsa_uart_probe (drivers/tty/serial/amba-pl011.c:3041)
	platform_probe (drivers/base/platform.c:1405)
	really_probe (drivers/base/dd.c:579 drivers/base/dd.c:657)
	__driver_probe_device (drivers/base/dd.c:799)
	driver_probe_device (drivers/base/dd.c:829)
	__device_attach_driver (drivers/base/dd.c:958)
	bus_for_each_drv (drivers/base/bus.c:462)
	__device_attach (drivers/base/dd.c:1031)
	device_initial_probe (drivers/base/dd.c:1079)
	bus_probe_device (drivers/base/bus.c:537)
	device_add (drivers/base/core.c:3699)
	platform_device_add (drivers/base/platform.c:716)
	platform_device_register_full (drivers/base/platform.c:845)
	acpi_create_platform_device (./include/linux/err.h:70 drivers/acpi/acpi_platform.c:178)
	acpi_bus_attach (./include/linux/acpi.h:738 drivers/acpi/scan.c:2206 drivers/acpi/scan.c:2198 drivers/acpi/scan.c:2316)
	acpi_dev_for_one_check (drivers/acpi/bus.c:1146)
	device_for_each_child (drivers/base/core.c:4021)
	acpi_dev_for_each_child (drivers/acpi/bus.c:1151)
	acpi_bus_attach (drivers/acpi/scan.c:2323)
	acpi_dev_for_one_check (drivers/acpi/bus.c:1146)
	device_for_each_child (drivers/base/core.c:4021)
	acpi_dev_for_each_child (drivers/acpi/bus.c:1151)
	acpi_bus_attach (drivers/acpi/scan.c:2323)
	acpi_bus_scan (drivers/acpi/scan.c:2533 drivers/acpi/scan.c:2606)
	acpi_scan_init (drivers/acpi/scan.c:2739)
	acpi_init (drivers/acpi/bus.c:1470)
	do_one_initcall (init/main.c:1274)
	kernel_init_freeable (init/main.c:1335 init/main.c:1352 init/main.c:1371 init/main.c:1584)
	kernel_init (init/main.c:1476)
	ret_from_fork (arch/arm64/kernel/entry.S:863)
	irq event stamp: 256268
	hardirqs last enabled at (256267): vprintk_store (kernel/printk/printk.c:2356 (discriminator 1))
	hardirqs last disabled at (256268): __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1539 kernel/printk/nbcon.c:1593)
	softirqs last enabled at (255640): handle_softirqs (./arch/arm64/include/asm/current.h:19 ./arch/arm64/include/asm/preempt.h:13 kernel/softirq.c:426 kernel/softirq.c:607)
	softirqs last disabled at (255635): __do_softirq (kernel/softirq.c:614)
	---[ end trace 0000000000000000 ]---

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

On Tue, Jul 08, 2025 at 07:00:45AM -0700, Breno Leitao wrote:
> On Thu, Jul 03, 2025 at 05:31:09PM +0100, Mark Rutland wrote:
> 
> Here is more information I got about this problem. TL;DR: While the
> machine is booting, it is throttled by the UART speed, while having IRQ
> disabled.

quick update: I've identified a solution that significantly improves the
situation. I've found that the serial issue was heavily affecting boot
time, which is unleashed now.

After applying the following fix, the boot speed has improved
dramatically. It's the fastest I've seen, and the CSD lockups are gone.

If no concerns raise in the next days, I will send it officially to the
serial maintainers.

Author: Breno Leitao <leitao@debian.org>
Date:   Wed Jul 9 05:57:06 2025 -0700

    serial: amba-pl011: Fix boot performance by switching to console_initcall()

    Replace arch_initcall() with console_initcall() for PL011 driver initialization
    to resolve severe boot performance issues.

    The current arch_initcall() registration causes the console to initialize
    before the printk subsystem is ready, forcing the driver into atomic mode
    during early boot. This results in:

    - 5-8 second boot delay while ~700 boot messages are processed
    - System freeze with IRQs disabled during message output
    - Each character transmitted synchronously with cpu_relax() polling

    This is what is driving the driver to atomic mode in the early boot:

      static inline void printk_get_console_flush_type(struct console_flush_type *ft)
      {
            ....
            if (printk_kthreads_running)
                    ft->nbcon_offload = true;

    The atomic path processes each character individually through
    pl011_console_putchar(), waiting for UART transmission completion
    before proceeding. With only one CPU online during early boot,
    this creates a bottleneck where the system spends excessive time
    in interrupt-disabled state.

    Here is how the code looks like:

      1) disable interrupt
      2) for each of these 700 messages, call pl011_console_write_atomic()
      3) for each character in the message, calls pl011_console_putchar(),
         which waits for the character to be transmitted
      4) once all the line is transmitted, wait for the UART to be idle
      5) re-enable interrupt

    Here is the code representation of the above:

            pl011_console_write_atomic() {
                    ...
                    // For each char in the message
                    pl011_console_putchar() {
                            while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
                                    cpu_relax();
                    }
                    while ((pl011_read(uap, REG_FR) ^ uap->vendor->inv_fr) & uap->vendor->fr_busy)
                            cpu_relax();

    Using console_initcall() ensures proper initialization order,
    allowing the printk subsystem to use threaded output instead
    of atomic mode, eliminating the performance bottleneck.

    Performance improvement: 16x faster kernel boot time at my GRACE SoC
    machine.

      - Before: 10.08s to reach init process
      - After: 0.62s to reach init process

    Here are more timing details, collected from Linus' upstream, where the
    only different is this patch:

    Linus upstream:
      [    0.616203] printk: legacy console [netcon_ext0] enabled
      [    0.627469] Run /init as init process
      [    0.837477] loop: module loaded
      [    8.354803] Adding 134199360k swap on /swapvol/swapfile.

    With this patch:
      [    0.305109] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
      [   10.081742] Run /init as init process
      [   13.288717] loop: module loaded
      [   22.919934] Adding 134199168k swap on /swapvol/swapfile.

    Link: https://lore.kernel.org/all/aGVn%2FSnOvwWewkOW@gmail.com/ [1]

    Signed-off-by: Breno Leitao <leitao@debian.org>

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 22939841b1de..0cf251365825 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -3116,7 +3116,7 @@ static void __exit pl011_exit(void)
  * While this can be a module, if builtin it's most likely the console
  * So let's leave module_exit but move module_init to an earlier place
  */
-arch_initcall(pl011_init);
+console_initcall(pl011_init);
 module_exit(pl011_exit);

 MODULE_AUTHOR("ARM Ltd/Deep Blue Solutions Ltd");

Re: arm64: csdlock at early boot due to slow serial (?)

[Leo Yan]

Hi Breno,

On Wed, Jul 09, 2025 at 07:23:44AM -0700, Breno Leitao wrote:
> On Tue, Jul 08, 2025 at 07:00:45AM -0700, Breno Leitao wrote:
> > On Thu, Jul 03, 2025 at 05:31:09PM +0100, Mark Rutland wrote:
> > 
> > Here is more information I got about this problem. TL;DR: While the
> > machine is booting, it is throttled by the UART speed, while having IRQ
> > disabled.
> 
> quick update: I've identified a solution that significantly improves the
> situation. I've found that the serial issue was heavily affecting boot
> time, which is unleashed now.
> 
> After applying the following fix, the boot speed has improved
> dramatically. It's the fastest I've seen, and the CSD lockups are gone.

Thanks for trying to fix the issue.

> If no concerns raise in the next days, I will send it officially to the
> serial maintainers.

I am not an expert on the PL011 driver, however, I do have concerns
after review the change. Please see my comments below.

> Author: Breno Leitao <leitao@debian.org>
> Date:   Wed Jul 9 05:57:06 2025 -0700
> 
>     serial: amba-pl011: Fix boot performance by switching to console_initcall()
> 
>     Replace arch_initcall() with console_initcall() for PL011 driver initialization
>     to resolve severe boot performance issues.

pl011_init() registers as an AMBA device, so the PL011 driver depends
on the AMBA bus initialization. The AMBA bus is initialized with:

    postcore_initcall(amba_init);

Therefore, the PL011 driver is initialized with arch_initcall(), which
occurs later than the postcore init.

My understanding is that console_initcall() is invoked much earlier
than other initcalls triggered by do_initcalls(). With your change, I
saw the PL011 driver fails to register on Juno-r2 board, due to AMBA bus
driver is not ready for a console init.

  Driver 'uart-pl011' was unable to register with bus_type 'amba'
  because the bus was not initialized.

>     The current arch_initcall() registration causes the console to initialize
>     before the printk subsystem is ready, forcing the driver into atomic mode
>     during early boot. This results in:
> 
>     - 5-8 second boot delay while ~700 boot messages are processed
>     - System freeze with IRQs disabled during message output
>     - Each character transmitted synchronously with cpu_relax() polling
> 
>     This is what is driving the driver to atomic mode in the early boot:
> 
>       static inline void printk_get_console_flush_type(struct console_flush_type *ft)
>       {
>             ....
>             if (printk_kthreads_running)
>                     ft->nbcon_offload = true;
> 
>     The atomic path processes each character individually through
>     pl011_console_putchar(), waiting for UART transmission completion
>     before proceeding. With only one CPU online during early boot,
>     this creates a bottleneck where the system spends excessive time
>     in interrupt-disabled state.

The atomic path is introduced recently by the commit:

  2eb2608618ce ("serial: amba-pl011: Implement nbcon console")

My conclusion is that changing the initcall will not disable the atomic
path, changing to console_initcall() will cause AMBA device init
failure, and as a result, the clock operations will not be invoked.
Thus, I am curious if you have ruled out the issue is caused by the UART
clock (as I mentioned in another reply).

BTW, since the atomic path is enabled in the commit 2eb2608618ce, what
is the result after reverting the commit?

Thanks,
Leo

>     Here is how the code looks like:
> 
>       1) disable interrupt
>       2) for each of these 700 messages, call pl011_console_write_atomic()
>       3) for each character in the message, calls pl011_console_putchar(),
>          which waits for the character to be transmitted
>       4) once all the line is transmitted, wait for the UART to be idle
>       5) re-enable interrupt
> 
>     Here is the code representation of the above:
> 
>             pl011_console_write_atomic() {
>                     ...
>                     // For each char in the message
>                     pl011_console_putchar() {
>                             while (pl011_read(uap, REG_FR) & UART01x_FR_TXFF)
>                                     cpu_relax();
>                     }
>                     while ((pl011_read(uap, REG_FR) ^ uap->vendor->inv_fr) & uap->vendor->fr_busy)
>                             cpu_relax();
> 
>     Using console_initcall() ensures proper initialization order,
>     allowing the printk subsystem to use threaded output instead
>     of atomic mode, eliminating the performance bottleneck.
> 
>     Performance improvement: 16x faster kernel boot time at my GRACE SoC
>     machine.
> 
>       - Before: 10.08s to reach init process
>       - After: 0.62s to reach init process
> 
>     Here are more timing details, collected from Linus' upstream, where the
>     only different is this patch:
> 
>     Linus upstream:
>       [    0.616203] printk: legacy console [netcon_ext0] enabled
>       [    0.627469] Run /init as init process
>       [    0.837477] loop: module loaded
>       [    8.354803] Adding 134199360k swap on /swapvol/swapfile.
> 
>     With this patch:
>       [    0.305109] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
>       [   10.081742] Run /init as init process
>       [   13.288717] loop: module loaded
>       [   22.919934] Adding 134199168k swap on /swapvol/swapfile.
> 
>     Link: https://lore.kernel.org/all/aGVn%2FSnOvwWewkOW@gmail.com/ [1]
> 
>     Signed-off-by: Breno Leitao <leitao@debian.org>
> 
> diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
> index 22939841b1de..0cf251365825 100644
> --- a/drivers/tty/serial/amba-pl011.c
> +++ b/drivers/tty/serial/amba-pl011.c
> @@ -3116,7 +3116,7 @@ static void __exit pl011_exit(void)
>   * While this can be a module, if builtin it's most likely the console
>   * So let's leave module_exit but move module_init to an earlier place
>   */
> -arch_initcall(pl011_init);
> +console_initcall(pl011_init);
>  module_exit(pl011_exit);
> 
>  MODULE_AUTHOR("ARM Ltd/Deep Blue Solutions Ltd");
> 
> 
> 
> 
> 

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

Hello Leo,

On Thu, Jul 10, 2025 at 02:35:57PM +0100, Leo Yan wrote:
> >     serial: amba-pl011: Fix boot performance by switching to console_initcall()
> > 
> >     Replace arch_initcall() with console_initcall() for PL011 driver initialization
> >     to resolve severe boot performance issues.
> 
> pl011_init() registers as an AMBA device, so the PL011 driver depends
> on the AMBA bus initialization. The AMBA bus is initialized with:
> 
>     postcore_initcall(amba_init);
> 
> Therefore, the PL011 driver is initialized with arch_initcall(), which
> occurs later than the postcore init.
> 
> My understanding is that console_initcall() is invoked much earlier
> than other initcalls triggered by do_initcalls(). With your change, I
> saw the PL011 driver fails to register on Juno-r2 board, due to AMBA bus
> driver is not ready for a console init.

You are absolutely correct. I confirm that the machine is fast because
pl011 is not working, which is sad and embarassing.

> The atomic path is introduced recently by the commit:
> 
>   2eb2608618ce ("serial: amba-pl011: Implement nbcon console")
> 
> My conclusion is that changing the initcall will not disable the atomic
> path, changing to console_initcall() will cause AMBA device init
> failure, and as a result, the clock operations will not be invoked.
> Thus, I am curious if you have ruled out the issue is caused by the UART
> clock (as I mentioned in another reply).
> 
> BTW, since the atomic path is enabled in the commit 2eb2608618ce, what
> is the result after reverting the commit?

I've reverted commit 2eb2608618ce ("serial: amba-pl011: Implement nbcon
console"), and I don't see the CSD locks anymoer. The serial speed is
the same and continue to be slow, but, the CSD lock is not there. Here
is the time spent on the serial flush when reverting the commit above

	[    0.309561] printk: legacy console [ttyAMA0] enabled
	[    8.657938] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])

Thanks
--breno

Re: arm64: csdlock at early boot due to slow serial (?)

[Leo Yan]

Hi Breno,

On Thu, Jul 10, 2025 at 10:30:45AM -0700, Breno Leitao wrote:

[...]

> > The atomic path is introduced recently by the commit:
> > 
> >   2eb2608618ce ("serial: amba-pl011: Implement nbcon console")
> > 
> > My conclusion is that changing the initcall will not disable the atomic
> > path, changing to console_initcall() will cause AMBA device init
> > failure, and as a result, the clock operations will not be invoked.
> > Thus, I am curious if you have ruled out the issue is caused by the UART
> > clock (as I mentioned in another reply).
> > 
> > BTW, since the atomic path is enabled in the commit 2eb2608618ce, what
> > is the result after reverting the commit?
> 
> I've reverted commit 2eb2608618ce ("serial: amba-pl011: Implement nbcon
> console"), and I don't see the CSD locks anymoer. The serial speed is
> the same and continue to be slow, but, the CSD lock is not there. Here
> is the time spent on the serial flush when reverting the commit above
> 
> 	[    0.309561] printk: legacy console [ttyAMA0] enabled
> 	[    8.657938] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])

From this result, we can know both the atomic path and the thread path
take a long time polling.

Since both paths configure the UART clock, I'm curious about the
behaviour if the UART clock is untouched. The relevant code is shown
below.

I may seem a bit stubborn in suspecting a clock issue :) But if you
have confirmed that a standard pl011 UART IP is being used, then the
only external factor I am aware of is the clock.

Thanks,
Leo

---8<---

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 71482d639a6d..b04773ba2602 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -64,6 +64,8 @@ static int amba_get_enable_pclk(struct amba_device *pcdev)
 {
 	int ret;
 
+	return 0;
+
 	pcdev->pclk = clk_get(&pcdev->dev, "apb_pclk");
 	if (IS_ERR(pcdev->pclk))
 		return PTR_ERR(pcdev->pclk);
@@ -77,8 +79,8 @@ static int amba_get_enable_pclk(struct amba_device *pcdev)
 
 static void amba_put_disable_pclk(struct amba_device *pcdev)
 {
-	clk_disable_unprepare(pcdev->pclk);
-	clk_put(pcdev->pclk);
+	//clk_disable_unprepare(pcdev->pclk);
+	//clk_put(pcdev->pclk);
 }
 
 
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 22939841b1de..9ba24afb6e4f 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1777,7 +1777,7 @@ static int pl011_hwinit(struct uart_port *port)
 	/*
 	 * Try to enable the clock producer.
 	 */
-	retval = clk_prepare_enable(uap->clk);
+	retval = clk_prepare(uap->clk);
 	if (retval)
 		return retval;
 
@@ -1934,7 +1934,7 @@ static int pl011_startup(struct uart_port *port)
 	return 0;
 
  clk_dis:
-	clk_disable_unprepare(uap->clk);
+	//clk_disable_unprepare(uap->clk);
 	return retval;
 }
 
@@ -2025,7 +2025,7 @@ static void pl011_shutdown(struct uart_port *port)
 	/*
 	 * Shut down the clock producer
 	 */
-	clk_disable_unprepare(uap->clk);
+	//clk_disable_unprepare(uap->clk);
 	/* Optionally let pins go into sleep states */
 	pinctrl_pm_select_sleep_state(port->dev);
 
@@ -2524,7 +2524,7 @@ pl011_console_write_atomic(struct console *co, struct nbcon_write_context *wctxt
 	if (!nbcon_enter_unsafe(wctxt))
 		return;
 
-	clk_enable(uap->clk);
+	//clk_enable(uap->clk);
 
 	if (!uap->vendor->always_enabled) {
 		old_cr = pl011_read(uap, REG_CR);
@@ -2542,7 +2542,7 @@ pl011_console_write_atomic(struct console *co, struct nbcon_write_context *wctxt
 	if (!uap->vendor->always_enabled)
 		pl011_write(old_cr, uap, REG_CR);
 
-	clk_disable(uap->clk);
+	//clk_disable(uap->clk);
 
 	nbcon_exit_unsafe(wctxt);
 }
@@ -2556,7 +2556,7 @@ pl011_console_write_thread(struct console *co, struct nbcon_write_context *wctxt
 	if (!nbcon_enter_unsafe(wctxt))
 		return;
 
-	clk_enable(uap->clk);
+	//clk_enable(uap->clk);
 
 	if (!uap->vendor->always_enabled) {
 		old_cr = pl011_read(uap, REG_CR);
@@ -2586,7 +2586,7 @@ pl011_console_write_thread(struct console *co, struct nbcon_write_context *wctxt
 	if (!uap->vendor->always_enabled)
 		pl011_write(old_cr, uap, REG_CR);
 
-	clk_disable(uap->clk);
+	//clk_disable(uap->clk);
 
 	nbcon_exit_unsafe(wctxt);
 }

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

On Fri, Jul 11, 2025 at 10:50:23AM +0100, Leo Yan wrote:
> > I've reverted commit 2eb2608618ce ("serial: amba-pl011: Implement nbcon
> > console"), and I don't see the CSD locks anymoer. The serial speed is
> > the same and continue to be slow, but, the CSD lock is not there. Here
> > is the time spent on the serial flush when reverting the commit above
> > 
> > 	[    0.309561] printk: legacy console [ttyAMA0] enabled
> > 	[    8.657938] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])
> 
> From this result, we can know both the atomic path and the thread path
> take a long time polling.

I am wondering if this slowdown is by design, or, if there is a bug
somewhere.

> Since both paths configure the UART clock, I'm curious about the
> behaviour if the UART clock is untouched. The relevant code is shown
> below.

Is this the clock frequency that is connected to pl011 coming from AMBA?

> I may seem a bit stubborn in suspecting a clock issue :) But if you
> have confirmed that a standard pl011 UART IP is being used.

How do I double check this is a pl011 UART IP or if this is being
emulated by firmware/ACPI.

> diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
> index 71482d639a6d..b04773ba2602 100644
> --- a/drivers/amba/bus.c
> +++ b/drivers/amba/bus.c
>
I've tested it, but, it seems it didnt' help much. here is the full log

[    0.000000] Booting Linux on physical CPU 0x0000020000 [0x410fd4f0]
[    0.000000] Linux version 6.16.0-rc5-00056-gd7753fd13f9e () (gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-5), GNU ld version 2.35.2-63.el9) #86 SMP Fri Jul 11 03:25:52 PDT 2025
[    0.000000] random: crng init done
[    0.000000] efi: EFI v2.9 by American Megatrends
[    0.000000] efi: RTPROP=0x4053fee418 ACPI 2.0=0x4044bcb018 SMBIOS 3.0=0x4053fe4018 TPMFinalLog=0x4042b50000 MEMATTR=0x404d4f3018 ESRT=0x404f943018 TPMEventLog=0x4042857018 RNG=0x4044bca818 MEMRESERVE=0x4042854e98 
[    0.000000] esrt: Reserving ESRT space from 0x000000404f943018 to 0x000000404f943078.
[    0.000000] ACPI: Early table checksum verification disabled
[    0.000000] ACPI: RSDP 0x0000004044BCB018 000024 (v02 NVIDIA)
[    0.000000] ACPI: XSDT 0x0000004044BCB098 00012C (v01 NVIDIA A M I    00000001 AMI  00000001)
[    0.000000] ACPI: FACP 0x0000004044BCAE18 000114 (v06 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: DSDT 0x0000004044BC4018 001EC9 (v02 NVIDIA TH500    00000001 INTL 20220331)
[    0.000000] ACPI: FIDT 0x0000004044BCBF18 00009C (v01 ALASKA A M I    01072009 AMI  00010013)
[    0.000000] ACPI: SSDT 0x0000004044BCBB18 00015E (v02 ALASKA PRMOPREG 00001000 INTL 20220331)
[    0.000000] ACPI: SPMI 0x0000004044BCBD98 000041 (v05 ALASKA A M I    00000000 AMI. 00000000)
[    0.000000] ACPI: FPDT 0x0000004044BCBE18 000034 (v01 ALASKA T241c1   00000001 AMI  00000001)
[    0.000000] ACPI: PRMT 0x0000004044BCA018 00008E (v00 ALASKA A M I    00000001 AMI  00000001)
[    0.000000] ACPI: SDEI 0x0000004044BCAF98 000024 (v01 NVIDIA A M I    00000001 NVDA 00000001)
[    0.000000] ACPI: HEST 0x0000004044BC8018 001054 (v01 NVIDIA A M I    00000001 NVDA 00000001)
[    0.000000] ACPI: BERT 0x0000004044BCBE98 000030 (v01 NVIDIA A M I    00000001 NVDA 00000001)
[    0.000000] ACPI: EINJ 0x0000004044BCAB98 000170 (v01 NVIDIA A M I    00000001 NVDA 00000001)
[    0.000000] ACPI: ERST 0x0000004044BCA118 000290 (v01 NVIDIA A M I    00000001 NVDA 00000001)
[    0.000000] ACPI: GTDT 0x0000004044BCA518 000084 (v03 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: APIC 0x0000004044BC6018 001778 (v06 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: PPTT 0x0000004044BC1018 0020F8 (v03 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004042AF9018 006CA7 (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SPCR 0x0000004044BCAA18 000050 (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004044BCAA98 0000CC (v02 NVIDIA A M I    00000001 INTL 20220331)
[    0.000000] ACPI: SSDT 0x0000004044BCA618 0000C0 (v02 NVIDIA TH500    00000001 INTL 20220331)
[    0.000000] ACPI: SSDT 0x0000004042AF7018 00190C (v02 NVIDIA BPMP_S0  00000001 INTL 20220331)
[    0.000000] ACPI: MCFG 0x0000004044BCA718 00007C (v01 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004044BC0018 0003AE (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004044BC0418 0003AE (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004044BC0818 0003AF (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004042AF6018 0003AF (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SSDT 0x0000004042AF6418 0003AF (v02 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: IORT 0x0000004042AF5018 00072B (v06 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: APMT 0x0000004042AF5E98 00013C (v00 ALASKA A M I    00000001 AMI  00000001)
[    0.000000] ACPI: MPAM 0x0000004042AF6E98 000084 (v01 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: SLIT 0x0000004042AF6F98 00002D (v01 ALASKA A M I    00000001 AMI  00000001)
[    0.000000] ACPI: SRAT 0x0000004042AF6818 000574 (v03 NVIDIA A M I    00000001 ARMH 00010000)
[    0.000000] ACPI: HMAT 0x0000004044BC0E98 0000A6 (v02 ALASKA A M I    00000001 AMI  00000001)
[    0.000000] ACPI: WSMT 0x0000004044BC0F98 000028 (v01 ALASKA A M I    00000001 AMI  00000001)
[    0.000000] ACPI: TPM2 0x0000004044BCA998 00004C (v04 ALASKA A M I    00000001 AMI  00000000)
[    0.000000] ACPI: SPCR: console: pl011,mmio32,0xc280000,115200
[    0.000000] ACPI: Use ACPI SPCR as default console: Yes
[    0.000000] ACPI: SRAT: Node 0 PXM 0 [mem 0x80000000-0x407fffffff]
[    0.000000] NUMA: Initialized distance table, cnt=1
[    0.000000] NODE_DATA(0) allocated [mem 0x40597daac0-0x40597dffff]
[    0.000000] Zone ranges:
[    0.000000]   DMA      [mem 0x0000000080000000-0x00000000ffffffff]
[    0.000000]   DMA32    empty
[    0.000000]   Normal   [mem 0x0000000100000000-0x000000405fffffff]
[    0.000000]   Device   empty
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x0000000080000000-0x00000000fffcffff]
[    0.000000]   node   0: [mem 0x00000000fffd0000-0x00000000ffffffff]
[    0.000000]   node   0: [mem 0x0000000100000000-0x000000161ab7ffff]
[    0.000000]   node   0: [mem 0x000000161ab90000-0x0000004042afffff]
[    0.000000]   node   0: [mem 0x0000004042b00000-0x0000004044bbffff]
[    0.000000]   node   0: [mem 0x0000004044bc0000-0x00000040520affff]
[    0.000000]   node   0: [mem 0x00000040520b0000-0x000000405303ffff]
[    0.000000]   node   0: [mem 0x0000004053040000-0x000000405376ffff]
[    0.000000]   node   0: [mem 0x0000004053770000-0x0000004053feffff]
[    0.000000]   node   0: [mem 0x0000004053ff0000-0x00000040567fffff]
[    0.000000]   node   0: [mem 0x0000004057000000-0x00000040571fffff]
[    0.000000]   node   0: [mem 0x0000004057600000-0x00000040576fffff]
[    0.000000]   node   0: [mem 0x0000004059700000-0x00000040597dffff]
[    0.000000]   node   0: [mem 0x000000405c000000-0x000000405fffffff]
[    0.000000] Initmem setup node 0 [mem 0x0000000080000000-0x000000405fffffff]
[    0.000000] On node 0, zone Normal: 1 pages in unavailable ranges
[    0.000000] On node 0, zone Normal: 128 pages in unavailable ranges
[    0.000000] On node 0, zone Normal: 64 pages in unavailable ranges
[    0.000000] On node 0, zone Normal: 512 pages in unavailable ranges
[    0.000000] On node 0, zone Normal: 642 pages in unavailable ranges
[    0.000000] crashkernel reserved: 0x00000000e7e00000 - 0x00000000ffe00000 (384 MB)
[    0.000000] psci: probing for conduit method from ACPI.
[    0.000000] psci: PSCIv1.1 detected in firmware.
[    0.000000] psci: Using standard PSCI v0.2 function IDs
[    0.000000] psci: MIGRATE_INFO_TYPE not supported.
[    0.000000] psci: SMC Calling Convention v1.2
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x20000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x40000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x50000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x60000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x70000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x80000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x90000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0xa0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0xb0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0xe0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x100000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x110000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x120000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x130000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x140000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x150000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x160000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x170000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x180000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x190000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x1a0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x1c0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x1d0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x1e0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x1f0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x200000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x210000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x220000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x230000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x240000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x250000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x260000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x270000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x280000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x290000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x2a0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x2b0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x2c0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x2d0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x2e0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x2f0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x300000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x310000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x320000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x330000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x340000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x350000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x360000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x370000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x380000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x3a0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x3b0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x3c0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x3d0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x3e0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x3f0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x400000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x410000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x420000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x430000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x440000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x460000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x480000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x490000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x4a0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x4b0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x4c0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x4d0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x4e0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x4f0000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x500000 -> Node 0
[    0.000000] ACPI: NUMA: SRAT: PXM 0 -> MPIDR 0x510000 -> Node 0
[    0.000000] percpu: Embedded 4 pages/cpu s175784 r8192 d78168 u262144
[    0.000000] pcpu-alloc: s175784 r8192 d78168 u262144 alloc=4*65536
[    0.000000] pcpu-alloc: [0] 00 [0] 01 [0] 02 [0] 03 [0] 04 [0] 05 [0] 06 [0] 07 
[    0.000000] pcpu-alloc: [0] 08 [0] 09 [0] 10 [0] 11 [0] 12 [0] 13 [0] 14 [0] 15 
[    0.000000] pcpu-alloc: [0] 16 [0] 17 [0] 18 [0] 19 [0] 20 [0] 21 [0] 22 [0] 23 
[    0.000000] pcpu-alloc: [0] 24 [0] 25 [0] 26 [0] 27 [0] 28 [0] 29 [0] 30 [0] 31 
[    0.000000] pcpu-alloc: [0] 32 [0] 33 [0] 34 [0] 35 [0] 36 [0] 37 [0] 38 [0] 39 
[    0.000000] pcpu-alloc: [0] 40 [0] 41 [0] 42 [0] 43 [0] 44 [0] 45 [0] 46 [0] 47 
[    0.000000] pcpu-alloc: [0] 48 [0] 49 [0] 50 [0] 51 [0] 52 [0] 53 [0] 54 [0] 55 
[    0.000000] pcpu-alloc: [0] 56 [0] 57 [0] 58 [0] 59 [0] 60 [0] 61 [0] 62 [0] 63 
[    0.000000] pcpu-alloc: [0] 64 [0] 65 [0] 66 [0] 67 [0] 68 [0] 69 [0] 70 [0] 71 
[    0.000000] Detected PIPT I-cache on CPU0
[    0.000000] CPU features: detected: Address authentication (architected QARMA5 algorithm)
[    0.000000] CPU features: detected: GIC system register CPU interface
[    0.000000] CPU features: detected: IRQ priority masking
[    0.000000] CPU features: detected: Virtualization Host Extensions
[    0.000000] CPU features: detected: Spectre-v4
[    0.000000] CPU features: detected: Spectre-BHB
[    0.000000] CPU features: detected: SSBS not fully self-synchronizing
[    0.000000] alternatives: applying boot alternatives
[    0.000000] Kernel command line: BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.16.0-rc5-00055-g0c759ecd169d root=UUID=f89a029a-5900-4918-ae30-e8657630c770 ro ipv6.autoconf=0 crashkernel=384M pcie_aspm=nomsi selinux=0 biosdevname=0 net.ifnames=0 msr.allow_writes=on swiotlb=4096 rd.auto=1 systemd.gpt_auto=0 netconsole=+6666@2401:db00:209c:171e:face:0000:0172:0000/eth0,1514@2401:db00:eef0:a59::/76:d4:dd:68:c3:59 iommu.passthrough=1 pcie_ports=native irqchip.gicv3_pseudo_nmi=1
[    0.000000] Unknown kernel command line parameters "BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.16.0-rc5-00055-g0c759ecd169d biosdevname=0", will be passed to user space.
[    0.000000] printk: log buffer data + meta data: 2097152 + 7340032 = 9437184 bytes
[    0.000000] Dentry cache hash table entries: 16777216 (order: 11, 134217728 bytes, linear)
[    0.000000] Inode-cache hash table entries: 8388608 (order: 10, 67108864 bytes, linear)
[    0.000000] software IO TLB: area num 128.
[    0.000000] software IO TLB: SWIOTLB bounce buffer size roundup to 32MB
[    0.000000] software IO TLB: mapped [mem 0x00000000e5e00000-0x00000000e7e00000] (32MB)
[    0.000000] Fallback order for Node 0: 0 
[    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 4184765
[    0.000000] Policy zone: Normal
[    0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=72, Nodes=1
[    0.000000] ftrace: allocating 60398 entries in 15 pages
[    0.000000] ftrace: allocated 15 pages with 4 groups
[    0.000000] rcu: Hierarchical RCU implementation.
[    0.000000] rcu: 	RCU restricting CPUs from NR_CPUS=512 to nr_cpu_ids=72.
[    0.000000] 	Rude variant of Tasks RCU enabled.
[    0.000000] 	Tracing variant of Tasks RCU enabled.
[    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 100 jiffies.
[    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=72
[    0.000000] RCU Tasks Rude: Setting shift to 7 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=72.
[    0.000000] RCU Tasks Trace: Setting shift to 7 and lim to 1 rcu_task_cb_adjust=1 rcu_task_cpu_ids=72.
[    0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] GIC: enabling workaround for GICv3: ARM64 erratum 2941627
[    0.000000] GICv3: 960 SPIs implemented
[    0.000000] GICv3: 320 Extended SPIs implemented
[    0.000000] Root IRQ handler: gic_handle_irq
[    0.000000] GICv3: GICv3 features: 16 PPIs, DirectLPI
[    0.000000] GICv3: GICv4 features: DirectLPI RVPEID Valid+Dirty 
[    0.000000] GICv3: GICD_CTRL.DS=0, SCR_EL3.FIQ=1
[    0.000000] GICv3: CPU0: found redistributor 20000 region 0:0x0000000022100000
[    0.000000] GICv3: Pseudo-NMIs enabled using relaxed ICC_PMR_EL1 synchronisation
[    0.000000] SRAT: PXM 0 -> ITS 0 -> Node 0
[    0.000000] ITS [mem 0x22040000-0x2205ffff]
[    0.000000] ITS@0x0000000022040000: Single VMOVP capable
[    0.000000] ITS@0x0000000022040000: Using GICv4.1 mode 00000000 00000001
[    0.000000] ITS@0x0000000022040000: allocated 8192 Devices @120a10000 (indirect, esz 8, psz 64K, shr 1)
[    0.000000] ITS@0x0000000022040000: allocated 32768 Interrupt Collections @120a20000 (flat, esz 2, psz 64K, shr 1)
[    0.000000] ITS@0x0000000022040000: allocated 16384 Virtual CPUs @120a40000 (flat, esz 8, psz 64K, shr 1)
[    0.000000] GICv3: Using preallocated redistributor tables
[    0.000000] GICv3: using LPI property table @0x0000000100900000
[    0.000000] ITS: Using DirectLPI for VPE invalidation
[    0.000000] ITS: Enabling GICv4 support
[    0.000000] GICv3: CPU0: using reserved LPI pending table @0x0000000100920000
[    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[    0.000000] arch_timer: cp15 timer(s) running at 1000.00MHz (phys).
[    0.000000] clocksource: arch_sys_counter: mask: 0x1fffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns
[    0.000001] sched_clock: 61 bits at 1000MHz, resolution 1ns, wraps every 4398046511103ns
[    0.000271] kfence: initialized - using 33554432 bytes for 255 objects at 0x(____ptrval____)-0x(____ptrval____)
[    0.000379] Console: colour dummy device 80x25
[    0.000424] ACPI: Core revision 20250404
[    0.000571] Calibrating delay loop (skipped), value calculated using timer frequency.. 2000.00 BogoMIPS (lpj=1000000)
[    0.000576] pid_max: default: 73728 minimum: 576
[    0.000617] LSM: initializing lsm=capability,bpf,ima
[    0.000896] LSM support for eBPF active
[    0.000934] stackdepot: allocating hash table of 1048576 entries via kvcalloc
[    0.001806] Mount-cache hash table entries: 262144 (order: 5, 2097152 bytes, linear)
[    0.001850] Mountpoint-cache hash table entries: 262144 (order: 5, 2097152 bytes, linear)
[    0.002665] rcu: Hierarchical SRCU implementation.
[    0.002667] rcu: 	Max phase no-delay instances is 400.
[    0.002710] Timer migration: 3 hierarchy levels; 8 children per group; 3 crossnode level
[    0.002890] Remapping and enabling EFI services.
[    0.003411] smp: Bringing up secondary CPUs ...
[    0.006323] Detected PIPT I-cache on CPU1
[    0.006339] GICv3: CPU1: found redistributor 40000 region 0:0x0000000022180000
[    0.006344] GICv3: CPU1: using reserved LPI pending table @0x0000000100930000
[    0.006360] CPU1: Booted secondary processor 0x0000040000 [0x410fd4f0]
[    0.007966] Detected PIPT I-cache on CPU2
[    0.007979] GICv3: CPU2: found redistributor 50000 region 0:0x00000000221c0000
[    0.007984] GICv3: CPU2: using reserved LPI pending table @0x0000000100940000
[    0.008000] CPU2: Booted secondary processor 0x0000050000 [0x410fd4f0]
[    0.009650] Detected PIPT I-cache on CPU3
[    0.009663] GICv3: CPU3: found redistributor 60000 region 0:0x0000000022200000
[    0.009668] GICv3: CPU3: using reserved LPI pending table @0x0000000100950000
[    0.009684] CPU3: Booted secondary processor 0x0000060000 [0x410fd4f0]
[    0.011338] Detected PIPT I-cache on CPU4
[    0.011350] GICv3: CPU4: found redistributor 70000 region 0:0x0000000022240000
[    0.011355] GICv3: CPU4: using reserved LPI pending table @0x0000000100960000
[    0.011371] CPU4: Booted secondary processor 0x0000070000 [0x410fd4f0]
[    0.013067] Detected PIPT I-cache on CPU5
[    0.013080] GICv3: CPU5: found redistributor 80000 region 0:0x0000000022280000
[    0.013085] GICv3: CPU5: using reserved LPI pending table @0x0000000100970000
[    0.013101] CPU5: Booted secondary processor 0x0000080000 [0x410fd4f0]
[    0.014795] Detected PIPT I-cache on CPU6
[    0.014808] GICv3: CPU6: found redistributor 90000 region 0:0x00000000222c0000
[    0.014814] GICv3: CPU6: using reserved LPI pending table @0x0000000100980000
[    0.014829] CPU6: Booted secondary processor 0x0000090000 [0x410fd4f0]
[    0.016559] Detected PIPT I-cache on CPU7
[    0.016573] GICv3: CPU7: found redistributor a0000 region 0:0x0000000022300000
[    0.016579] GICv3: CPU7: using reserved LPI pending table @0x0000000100990000
[    0.016594] CPU7: Booted secondary processor 0x00000a0000 [0x410fd4f0]
[    0.018324] Detected PIPT I-cache on CPU8
[    0.018339] GICv3: CPU8: found redistributor b0000 region 0:0x0000000022340000
[    0.018344] GICv3: CPU8: using reserved LPI pending table @0x00000001009a0000
[    0.018360] CPU8: Booted secondary processor 0x00000b0000 [0x410fd4f0]
[    0.019923] Detected PIPT I-cache on CPU9
[    0.019937] GICv3: CPU9: found redistributor e0000 region 0:0x0000000022400000
[    0.019943] GICv3: CPU9: using reserved LPI pending table @0x00000001009b0000
[    0.019958] CPU9: Booted secondary processor 0x00000e0000 [0x410fd4f0]
[    0.021545] Detected PIPT I-cache on CPU10
[    0.021560] GICv3: CPU10: found redistributor 100000 region 0:0x0000000022480000
[    0.021566] GICv3: CPU10: using reserved LPI pending table @0x00000001009c0000
[    0.021581] CPU10: Booted secondary processor 0x0000100000 [0x410fd4f0]
[    0.023148] Detected PIPT I-cache on CPU11
[    0.023164] GICv3: CPU11: found redistributor 110000 region 0:0x00000000224c0000
[    0.023170] GICv3: CPU11: using reserved LPI pending table @0x00000001009d0000
[    0.023185] CPU11: Booted secondary processor 0x0000110000 [0x410fd4f0]
[    0.024714] Detected PIPT I-cache on CPU12
[    0.024731] GICv3: CPU12: found redistributor 120000 region 0:0x0000000022500000
[    0.024736] GICv3: CPU12: using reserved LPI pending table @0x00000001009e0000
[    0.024751] CPU12: Booted secondary processor 0x0000120000 [0x410fd4f0]
[    0.026276] Detected PIPT I-cache on CPU13
[    0.026293] GICv3: CPU13: found redistributor 130000 region 0:0x0000000022540000
[    0.026298] GICv3: CPU13: using reserved LPI pending table @0x00000001009f0000
[    0.026314] CPU13: Booted secondary processor 0x0000130000 [0x410fd4f0]
[    0.027910] Detected PIPT I-cache on CPU14
[    0.027928] GICv3: CPU14: found redistributor 140000 region 0:0x0000000022580000
[    0.027934] GICv3: CPU14: using reserved LPI pending table @0x0000000100a00000
[    0.027949] CPU14: Booted secondary processor 0x0000140000 [0x410fd4f0]
[    0.029552] Detected PIPT I-cache on CPU15
[    0.029569] GICv3: CPU15: found redistributor 150000 region 0:0x00000000225c0000
[    0.029575] GICv3: CPU15: using reserved LPI pending table @0x0000000100a10000
[    0.029591] CPU15: Booted secondary processor 0x0000150000 [0x410fd4f0]
[    0.031223] Detected PIPT I-cache on CPU16
[    0.031241] GICv3: CPU16: found redistributor 160000 region 0:0x0000000022600000
[    0.031247] GICv3: CPU16: using reserved LPI pending table @0x0000000100a20000
[    0.031262] CPU16: Booted secondary processor 0x0000160000 [0x410fd4f0]
[    0.032899] Detected PIPT I-cache on CPU17
[    0.032917] GICv3: CPU17: found redistributor 170000 region 0:0x0000000022640000
[    0.032923] GICv3: CPU17: using reserved LPI pending table @0x0000000100a30000
[    0.032938] CPU17: Booted secondary processor 0x0000170000 [0x410fd4f0]
[    0.034624] Detected PIPT I-cache on CPU18
[    0.034644] GICv3: CPU18: found redistributor 180000 region 0:0x0000000022680000
[    0.034650] GICv3: CPU18: using reserved LPI pending table @0x0000000100a40000
[    0.034666] CPU18: Booted secondary processor 0x0000180000 [0x410fd4f0]
[    0.036339] Detected PIPT I-cache on CPU19
[    0.036358] GICv3: CPU19: found redistributor 190000 region 0:0x00000000226c0000
[    0.036364] GICv3: CPU19: using reserved LPI pending table @0x0000000100a50000
[    0.036380] CPU19: Booted secondary processor 0x0000190000 [0x410fd4f0]
[    0.038094] Detected PIPT I-cache on CPU20
[    0.038117] GICv3: CPU20: found redistributor 1a0000 region 0:0x0000000022700000
[    0.038123] GICv3: CPU20: using reserved LPI pending table @0x0000000100a60000
[    0.038139] CPU20: Booted secondary processor 0x00001a0000 [0x410fd4f0]
[    0.039711] Detected PIPT I-cache on CPU21
[    0.039732] GICv3: CPU21: found redistributor 1c0000 region 0:0x0000000022780000
[    0.039738] GICv3: CPU21: using reserved LPI pending table @0x0000000100a70000
[    0.039754] CPU21: Booted secondary processor 0x00001c0000 [0x410fd4f0]
[    0.041326] Detected PIPT I-cache on CPU22
[    0.041347] GICv3: CPU22: found redistributor 1d0000 region 0:0x00000000227c0000
[    0.041353] GICv3: CPU22: using reserved LPI pending table @0x0000000100a80000
[    0.041369] CPU22: Booted secondary processor 0x00001d0000 [0x410fd4f0]
[    0.042948] Detected PIPT I-cache on CPU23
[    0.042968] GICv3: CPU23: found redistributor 1e0000 region 0:0x0000000022800000
[    0.042974] GICv3: CPU23: using reserved LPI pending table @0x0000000100a90000
[    0.042989] CPU23: Booted secondary processor 0x00001e0000 [0x410fd4f0]
[    0.044560] Detected PIPT I-cache on CPU24
[    0.044582] GICv3: CPU24: found redistributor 1f0000 region 0:0x0000000022840000
[    0.044588] GICv3: CPU24: using reserved LPI pending table @0x0000000100aa0000
[    0.044603] CPU24: Booted secondary processor 0x00001f0000 [0x410fd4f0]
[    0.046141] Detected PIPT I-cache on CPU25
[    0.046164] GICv3: CPU25: found redistributor 200000 region 0:0x0000000022880000
[    0.046170] GICv3: CPU25: using reserved LPI pending table @0x0000000100ab0000
[    0.046185] CPU25: Booted secondary processor 0x0000200000 [0x410fd4f0]
[    0.047727] Detected PIPT I-cache on CPU26
[    0.047750] GICv3: CPU26: found redistributor 210000 region 0:0x00000000228c0000
[    0.047756] GICv3: CPU26: using reserved LPI pending table @0x0000000100ac0000
[    0.047771] CPU26: Booted secondary processor 0x0000210000 [0x410fd4f0]
[    0.049373] Detected PIPT I-cache on CPU27
[    0.049397] GICv3: CPU27: found redistributor 220000 region 0:0x0000000022900000
[    0.049403] GICv3: CPU27: using reserved LPI pending table @0x0000000100ad0000
[    0.049419] CPU27: Booted secondary processor 0x0000220000 [0x410fd4f0]
[    0.051022] Detected PIPT I-cache on CPU28
[    0.051046] GICv3: CPU28: found redistributor 230000 region 0:0x0000000022940000
[    0.051051] GICv3: CPU28: using reserved LPI pending table @0x0000000100ae0000
[    0.051067] CPU28: Booted secondary processor 0x0000230000 [0x410fd4f0]
[    0.052708] Detected PIPT I-cache on CPU29
[    0.052733] GICv3: CPU29: found redistributor 240000 region 0:0x0000000022980000
[    0.052739] GICv3: CPU29: using reserved LPI pending table @0x0000000100af0000
[    0.052755] CPU29: Booted secondary processor 0x0000240000 [0x410fd4f0]
[    0.054410] Detected PIPT I-cache on CPU30
[    0.054435] GICv3: CPU30: found redistributor 250000 region 0:0x00000000229c0000
[    0.054441] GICv3: CPU30: using reserved LPI pending table @0x0000000100b00000
[    0.054456] CPU30: Booted secondary processor 0x0000250000 [0x410fd4f0]
[    0.056142] Detected PIPT I-cache on CPU31
[    0.056168] GICv3: CPU31: found redistributor 260000 region 0:0x0000000022a00000
[    0.056174] GICv3: CPU31: using reserved LPI pending table @0x0000000100b10000
[    0.056190] CPU31: Booted secondary processor 0x0000260000 [0x410fd4f0]
[    0.057875] Detected PIPT I-cache on CPU32
[    0.057901] GICv3: CPU32: found redistributor 270000 region 0:0x0000000022a40000
[    0.057907] GICv3: CPU32: using reserved LPI pending table @0x0000000100b20000
[    0.057922] CPU32: Booted secondary processor 0x0000270000 [0x410fd4f0]
[    0.059643] Detected PIPT I-cache on CPU33
[    0.059670] GICv3: CPU33: found redistributor 280000 region 0:0x0000000022a80000
[    0.059676] GICv3: CPU33: using reserved LPI pending table @0x0000000100b30000
[    0.059692] CPU33: Booted secondary processor 0x0000280000 [0x410fd4f0]
[    0.061415] Detected PIPT I-cache on CPU34
[    0.061441] GICv3: CPU34: found redistributor 290000 region 0:0x0000000022ac0000
[    0.061447] GICv3: CPU34: using reserved LPI pending table @0x0000000100b40000
[    0.061463] CPU34: Booted secondary processor 0x0000290000 [0x410fd4f0]
[    0.063142] Detected PIPT I-cache on CPU35
[    0.063169] GICv3: CPU35: found redistributor 2a0000 region 0:0x0000000022b00000
[    0.063175] GICv3: CPU35: using reserved LPI pending table @0x0000000100b50000
[    0.063191] CPU35: Booted secondary processor 0x00002a0000 [0x410fd4f0]
[    0.064866] Detected PIPT I-cache on CPU36
[    0.064893] GICv3: CPU36: found redistributor 2b0000 region 0:0x0000000022b40000
[    0.064900] GICv3: CPU36: using reserved LPI pending table @0x0000000100b60000
[    0.064916] CPU36: Booted secondary processor 0x00002b0000 [0x410fd4f0]
[    0.066593] Detected PIPT I-cache on CPU37
[    0.066619] GICv3: CPU37: found redistributor 2c0000 region 0:0x0000000022b80000
[    0.066625] GICv3: CPU37: using reserved LPI pending table @0x0000000100b70000
[    0.066641] CPU37: Booted secondary processor 0x00002c0000 [0x410fd4f0]
[    0.068323] Detected PIPT I-cache on CPU38
[    0.068351] GICv3: CPU38: found redistributor 2d0000 region 0:0x0000000022bc0000
[    0.068356] GICv3: CPU38: using reserved LPI pending table @0x0000000100b80000
[    0.068372] CPU38: Booted secondary processor 0x00002d0000 [0x410fd4f0]
[    0.070013] Detected PIPT I-cache on CPU39
[    0.070041] GICv3: CPU39: found redistributor 2e0000 region 0:0x0000000022c00000
[    0.070047] GICv3: CPU39: using reserved LPI pending table @0x0000000100b90000
[    0.070062] CPU39: Booted secondary processor 0x00002e0000 [0x410fd4f0]
[    0.071709] Detected PIPT I-cache on CPU40
[    0.071737] GICv3: CPU40: found redistributor 2f0000 region 0:0x0000000022c40000
[    0.071743] GICv3: CPU40: using reserved LPI pending table @0x0000000100ba0000
[    0.071758] CPU40: Booted secondary processor 0x00002f0000 [0x410fd4f0]
[    0.073468] Detected PIPT I-cache on CPU41
[    0.073498] GICv3: CPU41: found redistributor 300000 region 0:0x0000000022c80000
[    0.073504] GICv3: CPU41: using reserved LPI pending table @0x0000000100bb0000
[    0.073519] CPU41: Booted secondary processor 0x0000300000 [0x410fd4f0]
[    0.075231] Detected PIPT I-cache on CPU42
[    0.075260] GICv3: CPU42: found redistributor 310000 region 0:0x0000000022cc0000
[    0.075266] GICv3: CPU42: using reserved LPI pending table @0x0000000100bc0000
[    0.075281] CPU42: Booted secondary processor 0x0000310000 [0x410fd4f0]
[    0.077026] Detected PIPT I-cache on CPU43
[    0.077057] GICv3: CPU43: found redistributor 320000 region 0:0x0000000022d00000
[    0.077064] GICv3: CPU43: using reserved LPI pending table @0x0000000100bd0000
[    0.077079] CPU43: Booted secondary processor 0x0000320000 [0x410fd4f0]
[    0.078848] Detected PIPT I-cache on CPU44
[    0.078878] GICv3: CPU44: found redistributor 330000 region 0:0x0000000022d40000
[    0.078884] GICv3: CPU44: using reserved LPI pending table @0x0000000100be0000
[    0.078899] CPU44: Booted secondary processor 0x0000330000 [0x410fd4f0]
[    0.080701] Detected PIPT I-cache on CPU45
[    0.080732] GICv3: CPU45: found redistributor 340000 region 0:0x0000000022d80000
[    0.080739] GICv3: CPU45: using reserved LPI pending table @0x0000000100bf0000
[    0.080754] CPU45: Booted secondary processor 0x0000340000 [0x410fd4f0]
[    0.082538] Detected PIPT I-cache on CPU46
[    0.082571] GICv3: CPU46: found redistributor 350000 region 0:0x0000000022dc0000
[    0.082577] GICv3: CPU46: using reserved LPI pending table @0x0000000100c00000
[    0.082593] CPU46: Booted secondary processor 0x0000350000 [0x410fd4f0]
[    0.084424] Detected PIPT I-cache on CPU47
[    0.084457] GICv3: CPU47: found redistributor 360000 region 0:0x0000000022e00000
[    0.084464] GICv3: CPU47: using reserved LPI pending table @0x0000000100c10000
[    0.084480] CPU47: Booted secondary processor 0x0000360000 [0x410fd4f0]
[    0.086320] Detected PIPT I-cache on CPU48
[    0.086356] GICv3: CPU48: found redistributor 370000 region 0:0x0000000022e40000
[    0.086363] GICv3: CPU48: using reserved LPI pending table @0x0000000100c20000
[    0.086378] CPU48: Booted secondary processor 0x0000370000 [0x410fd4f0]
[    0.088111] Detected PIPT I-cache on CPU49
[    0.088144] GICv3: CPU49: found redistributor 380000 region 0:0x0000000022e80000
[    0.088150] GICv3: CPU49: using reserved LPI pending table @0x0000000100c30000
[    0.088166] CPU49: Booted secondary processor 0x0000380000 [0x410fd4f0]
[    0.089909] Detected PIPT I-cache on CPU50
[    0.089943] GICv3: CPU50: found redistributor 3a0000 region 0:0x0000000022f00000
[    0.089949] GICv3: CPU50: using reserved LPI pending table @0x0000000100c40000
[    0.089965] CPU50: Booted secondary processor 0x00003a0000 [0x410fd4f0]
[    0.091700] Detected PIPT I-cache on CPU51
[    0.091734] GICv3: CPU51: found redistributor 3b0000 region 0:0x0000000022f40000
[    0.091741] GICv3: CPU51: using reserved LPI pending table @0x0000000100c50000
[    0.091756] CPU51: Booted secondary processor 0x00003b0000 [0x410fd4f0]
[    0.093453] Detected PIPT I-cache on CPU52
[    0.093487] GICv3: CPU52: found redistributor 3c0000 region 0:0x0000000022f80000
[    0.093493] GICv3: CPU52: using reserved LPI pending table @0x0000000100c60000
[    0.093509] CPU52: Booted secondary processor 0x00003c0000 [0x410fd4f0]
[    0.095209] Detected PIPT I-cache on CPU53
[    0.095245] GICv3: CPU53: found redistributor 3d0000 region 0:0x0000000022fc0000
[    0.095252] GICv3: CPU53: using reserved LPI pending table @0x0000000100c70000
[    0.095267] CPU53: Booted secondary processor 0x00003d0000 [0x410fd4f0]
[    0.097036] Detected PIPT I-cache on CPU54
[    0.097071] GICv3: CPU54: found redistributor 3e0000 region 0:0x0000000023000000
[    0.097077] GICv3: CPU54: using reserved LPI pending table @0x0000000100c80000
[    0.097093] CPU54: Booted secondary processor 0x00003e0000 [0x410fd4f0]
[    0.098860] Detected PIPT I-cache on CPU55
[    0.098896] GICv3: CPU55: found redistributor 3f0000 region 0:0x0000000023040000
[    0.098902] GICv3: CPU55: using reserved LPI pending table @0x0000000100c90000
[    0.098918] CPU55: Booted secondary processor 0x00003f0000 [0x410fd4f0]
[    0.100722] Detected PIPT I-cache on CPU56
[    0.100757] GICv3: CPU56: found redistributor 400000 region 0:0x0000000023080000
[    0.100764] GICv3: CPU56: using reserved LPI pending table @0x0000000100ca0000
[    0.100780] CPU56: Booted secondary processor 0x0000400000 [0x410fd4f0]
[    0.102581] Detected PIPT I-cache on CPU57
[    0.102619] GICv3: CPU57: found redistributor 410000 region 0:0x00000000230c0000
[    0.102626] GICv3: CPU57: using reserved LPI pending table @0x0000000100cb0000
[    0.102642] CPU57: Booted secondary processor 0x0000410000 [0x410fd4f0]
[    0.104491] Detected PIPT I-cache on CPU58
[    0.104528] GICv3: CPU58: found redistributor 420000 region 0:0x0000000023100000
[    0.104535] GICv3: CPU58: using reserved LPI pending table @0x0000000100cc0000
[    0.104551] CPU58: Booted secondary processor 0x0000420000 [0x410fd4f0]
[    0.106452] Detected PIPT I-cache on CPU59
[    0.106492] GICv3: CPU59: found redistributor 430000 region 0:0x0000000023140000
[    0.106499] GICv3: CPU59: using reserved LPI pending table @0x0000000100cd0000
[    0.106515] CPU59: Booted secondary processor 0x0000430000 [0x410fd4f0]
[    0.108460] Detected PIPT I-cache on CPU60
[    0.108499] GICv3: CPU60: found redistributor 440000 region 0:0x0000000023180000
[    0.108506] GICv3: CPU60: using reserved LPI pending table @0x0000000100ce0000
[    0.108522] CPU60: Booted secondary processor 0x0000440000 [0x410fd4f0]
[    0.110309] Detected PIPT I-cache on CPU61
[    0.110352] GICv3: CPU61: found redistributor 460000 region 0:0x0000000023200000
[    0.110359] GICv3: CPU61: using reserved LPI pending table @0x0000000100cf0000
[    0.110375] CPU61: Booted secondary processor 0x0000460000 [0x410fd4f0]
[    0.112170] Detected PIPT I-cache on CPU62
[    0.112211] GICv3: CPU62: found redistributor 480000 region 0:0x0000000023280000
[    0.112218] GICv3: CPU62: using reserved LPI pending table @0x0000000100d00000
[    0.112233] CPU62: Booted secondary processor 0x0000480000 [0x410fd4f0]
[    0.114020] Detected PIPT I-cache on CPU63
[    0.114063] GICv3: CPU63: found redistributor 490000 region 0:0x00000000232c0000
[    0.114069] GICv3: CPU63: using reserved LPI pending table @0x0000000100d10000
[    0.114085] CPU63: Booted secondary processor 0x0000490000 [0x410fd4f0]
[    0.115853] Detected PIPT I-cache on CPU64
[    0.115895] GICv3: CPU64: found redistributor 4a0000 region 0:0x0000000023300000
[    0.115901] GICv3: CPU64: using reserved LPI pending table @0x0000000100d20000
[    0.115917] CPU64: Booted secondary processor 0x00004a0000 [0x410fd4f0]
[    0.117678] Detected PIPT I-cache on CPU65
[    0.117721] GICv3: CPU65: found redistributor 4b0000 region 0:0x0000000023340000
[    0.117728] GICv3: CPU65: using reserved LPI pending table @0x0000000100d30000
[    0.117744] CPU65: Booted secondary processor 0x00004b0000 [0x410fd4f0]
[    0.119570] Detected PIPT I-cache on CPU66
[    0.119613] GICv3: CPU66: found redistributor 4c0000 region 0:0x0000000023380000
[    0.119620] GICv3: CPU66: using reserved LPI pending table @0x0000000100d40000
[    0.119636] CPU66: Booted secondary processor 0x00004c0000 [0x410fd4f0]
[    0.121452] Detected PIPT I-cache on CPU67
[    0.121494] GICv3: CPU67: found redistributor 4d0000 region 0:0x00000000233c0000
[    0.121501] GICv3: CPU67: using reserved LPI pending table @0x0000000100d50000
[    0.121517] CPU67: Booted secondary processor 0x00004d0000 [0x410fd4f0]
[    0.123378] Detected PIPT I-cache on CPU68
[    0.123424] GICv3: CPU68: found redistributor 4e0000 region 0:0x0000000023400000
[    0.123431] GICv3: CPU68: using reserved LPI pending table @0x0000000100d60000
[    0.123447] CPU68: Booted secondary processor 0x00004e0000 [0x410fd4f0]
[    0.125306] Detected PIPT I-cache on CPU69
[    0.125351] GICv3: CPU69: found redistributor 4f0000 region 0:0x0000000023440000
[    0.125358] GICv3: CPU69: using reserved LPI pending table @0x0000000100d70000
[    0.125374] CPU69: Booted secondary processor 0x00004f0000 [0x410fd4f0]
[    0.127276] Detected PIPT I-cache on CPU70
[    0.127322] GICv3: CPU70: found redistributor 500000 region 0:0x0000000023480000
[    0.127329] GICv3: CPU70: using reserved LPI pending table @0x0000000100d80000
[    0.127345] CPU70: Booted secondary processor 0x0000500000 [0x410fd4f0]
[    0.129250] Detected PIPT I-cache on CPU71
[    0.129296] GICv3: CPU71: found redistributor 510000 region 0:0x00000000234c0000
[    0.129303] GICv3: CPU71: using reserved LPI pending table @0x0000000100d90000
[    0.129320] CPU71: Booted secondary processor 0x0000510000 [0x410fd4f0]
[    0.129411] smp: Brought up 1 node, 72 CPUs
[    0.129415] SMP: Total of 72 processors activated.
[    0.129416] CPU: All CPU(s) started at EL2
[    0.129419] CPU features: detected: Branch Target Identification
[    0.129422] CPU features: detected: ARMv8.4 Translation Table Level
[    0.129423] CPU features: detected: Instruction cache invalidation not required for I/D coherence
[    0.129425] CPU features: detected: Data cache clean to the PoU not required for I/D coherence
[    0.129428] CPU features: detected: Common not Private translations
[    0.129429] CPU features: detected: CRC32 instructions
[    0.129431] CPU features: detected: Data cache clean to Point of Deep Persistence
[    0.129433] CPU features: detected: Data cache clean to Point of Persistence
[    0.129434] CPU features: detected: Data independent timing control (DIT)
[    0.129436] CPU features: detected: E0PD
[    0.129437] CPU features: detected: Enhanced Privileged Access Never
[    0.129439] CPU features: detected: Enhanced Virtualization Traps
[    0.129441] CPU features: detected: Generic authentication (architected QARMA5 algorithm)
[    0.129443] CPU features: detected: RCpc load-acquire (LDAPR)
[    0.129445] CPU features: detected: LSE atomic instructions
[    0.129446] CPU features: detected: Privileged Access Never
[    0.129448] CPU features: detected: PMUv3
[    0.129449] CPU features: detected: RAS Extension Support
[    0.129451] CPU features: detected: Speculation barrier (SB)
[    0.129452] CPU features: detected: Stage-2 Force Write-Back
[    0.129454] CPU features: detected: TLB range maintenance instructions
[    0.129456] CPU features: detected: Memory Partitioning And Monitoring
[    0.129457] CPU features: detected: Memory Partitioning And Monitoring Virtualisation
[    0.129459] CPU features: detected: Speculative Store Bypassing Safe (SSBS)
[    0.129461] CPU features: detected: Scalable Vector Extension
[    0.129779] alternatives: applying system-wide alternatives
[    0.132380] CPU features: detected: Activity Monitors Unit (AMU) on CPU0-71
[    0.132384] CPU features: detected: Hardware dirty bit management on CPU0-71
[    0.132387] SVE: maximum available vector length 16 bytes per vector
[    0.132389] SVE: default vector length 16 bytes per vector
[    0.133122] Memory: 266487360K/267824960K available (21056K kernel code, 11778K rwdata, 16704K rodata, 11264K init, 3238K bss, 1123456K reserved, 0K cma-reserved)
[    0.133326] devtmpfs: initialized
[    0.136841] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 1911260446275000 ns
[    0.136862] posixtimers hash table entries: 65536 (order: 5, 2097152 bytes, linear)
[    0.137410] futex hash table entries: 32768 (2097152 bytes on 1 NUMA nodes, total 2048 KiB, linear).
[    0.137482] 1031 pages in range for non-PLT usage
[    0.137483] 31751 pages in range for PLT usage
[    0.137589] pinctrl core: initialized pinctrl subsystem
[    0.137750] SMBIOS 3.6.0 present.
[    0.137754] DMI:....
[    0.137765] DMI: Memory slots populated: 1/1
[    0.138894] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[    0.139813] DMA: preallocated 32768 KiB GFP_KERNEL pool for atomic allocations
[    0.140086] DMA: preallocated 32768 KiB GFP_KERNEL|GFP_DMA pool for atomic allocations
[    0.140360] DMA: preallocated 32768 KiB GFP_KERNEL|GFP_DMA32 pool for atomic allocations
[    0.140375] audit: initializing netlink subsys (disabled)
[    0.140438] audit: type=2000 audit(0.138:1): state=initialized audit_enabled=0 res=1
[    0.140503] thermal_sys: Registered thermal governor 'step_wise'
[    0.140505] thermal_sys: Registered thermal governor 'user_space'
[    0.140540] cpuidle: using governor menu
[    0.140575] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
[    0.141172] ASID allocator initialised with 65536 entries
[    0.141217] Serial: AMBA PL011 UART driver
[    0.141547] HugeTLB: allocation took 0ms with hugepage_allocation_threads=18
[    0.141549] HugeTLB: allocation took 0ms with hugepage_allocation_threads=18
[    0.141553] HugeTLB: registered 16.0 GiB page size, pre-allocated 0 pages
[    0.141554] HugeTLB: 0 KiB vmemmap can be freed for a 16.0 GiB page
[    0.141556] HugeTLB: registered 512 MiB page size, pre-allocated 0 pages
[    0.141557] HugeTLB: 0 KiB vmemmap can be freed for a 512 MiB page
[    0.141559] HugeTLB: registered 2.00 MiB page size, pre-allocated 0 pages
[    0.141560] HugeTLB: 0 KiB vmemmap can be freed for a 2.00 MiB page
[    0.158413] raid6: neonx8   gen() 27187 MB/s
[    0.175451] raid6: neonx4   gen() 25335 MB/s
[    0.192493] raid6: neonx2   gen() 22617 MB/s
[    0.209520] raid6: neonx1   gen() 20437 MB/s
[    0.226578] raid6: int64x8  gen()  9539 MB/s
[    0.243622] raid6: int64x4  gen() 10312 MB/s
[    0.260625] raid6: int64x2  gen()  9492 MB/s
[    0.277692] raid6: int64x1  gen()  7851 MB/s
[    0.277694] raid6: using algorithm neonx8 gen() 27187 MB/s
[    0.294696] raid6: .... xor() 20355 MB/s, rmw enabled
[    0.294698] raid6: using neon recovery algorithm
[    0.294792] PRM: found 1 modules
[    0.294840] ACPI: Added _OSI(Module Device)
[    0.294842] ACPI: Added _OSI(Processor Device)
[    0.294844] ACPI: Added _OSI(Processor Aggregator Device)
[    0.296335] ACPI: 11 ACPI AML tables successfully acquired and loaded
[    0.297520] ACPI: Interpreter enabled
[    0.297522] ACPI: Using GIC for interrupt routing
[    0.297532] ACPI: MCFG table detected, 5 entries
[    0.297802] HEST: Table parsing has been initialized.
[    0.297818] sdei: SDEIv1.0 (0x0) detected in firmware.
[    0.299871] GHES: APEI firmware first mode is enabled by APEI bit and WHEA _OSC.
[    0.299959] ACPI: IORT: SMMU-v3[11000000] Mapped to Proximity domain 0
[    0.299979] ACPI: IORT: SMMU-v3[12000000] Mapped to Proximity domain 0
[    0.299996] ACPI: IORT: SMMU-v3[15000000] Mapped to Proximity domain 0
[    0.300013] ACPI: IORT: SMMU-v3[16000000] Mapped to Proximity domain 0
[    0.300031] ACPI: IORT: SMMU-v3[5000000] Mapped to Proximity domain 0
[    0.305809] ACPI: CPU0 has been hot-added
[    0.305840] ACPI: CPU1 has been hot-added
[    0.305866] ACPI: CPU2 has been hot-added
[    0.305892] ACPI: CPU3 has been hot-added
[    0.305919] ACPI: CPU4 has been hot-added
[    0.305944] ACPI: CPU5 has been hot-added
[    0.305970] ACPI: CPU6 has been hot-added
[    0.305996] ACPI: CPU7 has been hot-added
[    0.306021] ACPI: CPU8 has been hot-added
[    0.306047] ACPI: CPU9 has been hot-added
[    0.306072] ACPI: CPU10 has been hot-added
[    0.306098] ACPI: CPU11 has been hot-added
[    0.306130] ACPI: CPU12 has been hot-added
[    0.306155] ACPI: CPU13 has been hot-added
[    0.306181] ACPI: CPU14 has been hot-added
[    0.306206] ACPI: CPU15 has been hot-added
[    0.306231] ACPI: CPU16 has been hot-added
[    0.306256] ACPI: CPU17 has been hot-added
[    0.306282] ACPI: CPU18 has been hot-added
[    0.306307] ACPI: CPU19 has been hot-added
[    0.306332] ACPI: CPU20 has been hot-added
[    0.306357] ACPI: CPU21 has been hot-added
[    0.306382] ACPI: CPU22 has been hot-added
[    0.306407] ACPI: CPU23 has been hot-added
[    0.306433] ACPI: CPU24 has been hot-added
[    0.306458] ACPI: CPU25 has been hot-added
[    0.306490] ACPI: CPU26 has been hot-added
[    0.306515] ACPI: CPU27 has been hot-added
[    0.306540] ACPI: CPU28 has been hot-added
[    0.306566] ACPI: CPU29 has been hot-added
[    0.306616] ACPI: CPU30 has been hot-added
[    0.306645] ACPI: CPU31 has been hot-added
[    0.306675] ACPI: CPU32 has been hot-added
[    0.306700] ACPI: CPU33 has been hot-added
[    0.306725] ACPI: CPU34 has been hot-added
[    0.306751] ACPI: CPU35 has been hot-added
[    0.306778] ACPI: CPU36 has been hot-added
[    0.306803] ACPI: CPU37 has been hot-added
[    0.306829] ACPI: CPU38 has been hot-added
[    0.306855] ACPI: CPU39 has been hot-added
[    0.306882] ACPI: CPU40 has been hot-added
[    0.306913] ACPI: CPU41 has been hot-added
[    0.306938] ACPI: CPU42 has been hot-added
[    0.306964] ACPI: CPU43 has been hot-added
[    0.306989] ACPI: CPU44 has been hot-added
[    0.307014] ACPI: CPU45 has been hot-added
[    0.307039] ACPI: CPU46 has been hot-added
[    0.307065] ACPI: CPU47 has been hot-added
[    0.307091] ACPI: CPU48 has been hot-added
[    0.307116] ACPI: CPU49 has been hot-added
[    0.307141] ACPI: CPU50 has been hot-added
[    0.307167] ACPI: CPU51 has been hot-added
[    0.307192] ACPI: CPU52 has been hot-added
[    0.307217] ACPI: CPU53 has been hot-added
[    0.307243] ACPI: CPU54 has been hot-added
[    0.307277] ACPI: CPU55 has been hot-added
[    0.307303] ACPI: CPU56 has been hot-added
[    0.307328] ACPI: CPU57 has been hot-added
[    0.307354] ACPI: CPU58 has been hot-added
[    0.307379] ACPI: CPU59 has been hot-added
[    0.307405] ACPI: CPU60 has been hot-added
[    0.307430] ACPI: CPU61 has been hot-added
[    0.307455] ACPI: CPU62 has been hot-added
[    0.307481] ACPI: CPU63 has been hot-added
[    0.307507] ACPI: CPU64 has been hot-added
[    0.307532] ACPI: CPU65 has been hot-added
[    0.307558] ACPI: CPU66 has been hot-added
[    0.307596] ACPI: CPU67 has been hot-added
[    0.307637] ACPI: CPU68 has been hot-added
[    0.307671] ACPI: CPU69 has been hot-added
[    0.307703] ACPI: CPU70 has been hot-added
[    0.307729] ACPI: CPU71 has been hot-added
[    0.307809] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
[    0.307816] printk: console [ttyAMA0] enabled
[    5.414515] smp: csd: Detected non-responsive CSD lock (#1) on CPU#0, waiting 5001000000 ns for CPU#01 do_nothing+0x0/0x10(0x0).
[    5.414532] smp: 	csd: CSD lock (#1) unresponsive.
[    5.414535] Sending NMI from CPU 0 to CPUs 1:
[    5.414541] NMI backtrace for cpu 1
[    5.414545] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.0-rc5-00056-gd7753fd13f9e #86 NONE 
[    5.414548] Hardware name: Quanta JAVA ISLAND PVT 29F0EMAZ049/Java Island, BIOS F0EJ3A13 06/04/2025
[    5.414550] pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[    5.414552] pc : pl011_console_write_atomic+0x94/0x170
[    5.414559] lr : pl011_console_write_atomic+0x84/0x170
[    5.414562] sp : ffff80008492f1a0
[    5.414564] pmr: 000000c0
[    5.414565] x29: ffff80008492f1a0 x28: 0000000000000000 x27: 00000000000000e0
[    5.414572] x26: 0000000000000190 x25: 0000000000000000 x24: 0000000000000000
[    5.414578] x23: 0000000000000001 x22: 0000000000000000 x21: ffff800080c38ea8
[    5.414584] x20: ffff80008492f288 x19: ffff0000b2060080 x18: 00000000ffffffff
[    5.414590] x17: 6362323230303030 x16: 3030303078303a30 x15: 206e6f6967657220
[    5.414595] x14: 3030303064322072 x13: 3030303063623232 x12: 3030303030303030
[    5.414601] x11: 78303a30206e6f69 x10: 6765722030303030 x9 : ffff800080c390e4
[    5.414607] x8 : 6964657220646e75 x7 : 205d313533383630 x6 : 302e30202020205b
[    5.414612] x5 : ffff0000ad10200f x4 : 0000000000000000 x3 : 0000000000000008
[    5.414618] x2 : ffff8000816336c0 x1 : 0000000000000018 x0 : 0000000000000018
[    5.414624] Call trace:
[    5.414626]  pl011_console_write_atomic+0x94/0x170 (P)
[    5.414630]  nbcon_emit_next_record+0x234/0x388
[    5.414634]  __nbcon_atomic_flush_pending_con+0x88/0x108
[    5.414637]  __nbcon_atomic_flush_pending+0x108/0x198
[    5.414640]  nbcon_atomic_flush_pending+0x24/0x38
[    5.414643]  vprintk_emit+0x200/0x348
[    5.414645]  vprintk_default+0x3c/0x50
[    5.414647]  vprintk+0x2c/0x40
[    5.414650]  _printk+0x50/0x60
[    5.414652]  register_console+0x424/0x560
[    5.414654]  serial_core_register_port+0x878/0x898
[    5.414659]  serial_ctrl_register_port+0x14/0x28
[    5.414661]  uart_add_one_port+0x14/0x28
[    5.414664]  pl011_register_port+0x74/0x130
[    5.414667]  sbsa_uart_probe+0x164/0x1b8
[    5.414670]  platform_probe+0x8c/0x100
[    5.414674]  really_probe+0xc4/0x398
[    5.414676]  __driver_probe_device+0x80/0x1a8
[    5.414679]  driver_probe_device+0x44/0x120
[    5.414681]  __device_attach_driver+0xb8/0x158
[    5.414683]  bus_for_each_drv+0x74/0xc0
[    5.414685]  __device_attach+0xac/0x1e0
[    5.414687]  device_initial_probe+0x18/0x28
[    5.414690]  bus_probe_device+0xa8/0xb8
[    5.414692]  device_add+0x648/0x830
[    5.414697]  platform_device_add+0x114/0x280
[    5.414700]  platform_device_register_full+0x148/0x1b8
[    5.414702]  acpi_create_platform_device+0x264/0x388
[    5.414706]  acpi_bus_attach+0x2c8/0x2e8
[    5.414709]  acpi_dev_for_one_check+0x38/0x48
[    5.414711]  device_for_each_child+0x54/0xa0
[    5.414714]  acpi_dev_for_each_child+0x30/0x40
[    5.414716]  acpi_bus_attach+0x6c/0x2e8
[    5.414718]  acpi_dev_for_one_check+0x38/0x48
[    5.414720]  device_for_each_child+0x54/0xa0
[    5.414723]  acpi_dev_for_each_child+0x30/0x40
[    5.414725]  acpi_bus_attach+0x6c/0x2e8
[    5.414727]  acpi_bus_scan+0x5c/0x1b0
[    5.414730]  acpi_scan_init+0xa0/0x288
[    5.414737]  acpi_init+0x1e8/0x4b8
[    5.414740]  do_one_initcall+0x3c/0x2a0
[    5.414743]  kernel_init_freeable+0x22c/0x460
[    5.414746]  kernel_init+0x28/0x1f0
[    5.414750]  ret_from_fork+0x10/0x20
[    5.415540] smp: csd: Re-sending CSD lock (#1) IPI from CPU#00 to CPU#01
[    5.415544] CPU: 0 UID: 0 PID: 14 Comm: kworker/u288:1 Not tainted 6.16.0-rc5-00056-gd7753fd13f9e #86 NONE 
[    5.415548] Hardware name: Quanta JAVA ISLAND PVT 29F0EMAZ049/Java Island, BIOS F0EJ3A13 06/04/2025
[    5.415550] Workqueue: events_unbound toggle_allocation_gate
[    5.415557] Call trace:
[    5.415560]  show_stack+0x1c/0x30 (C)
[    5.415564]  dump_stack_lvl+0x80/0xe8
[    5.415570]  dump_stack+0x14/0x20
[    5.415574]  csd_lock_wait_toolong+0x484/0x5e0
[    5.415577]  smp_call_function_many_cond+0x5e0/0x7f8
[    5.415581]  kick_all_cpus_sync+0x48/0x68
[    5.415585]  arch_jump_label_transform_apply+0x14/0x28
[    5.415590]  __jump_label_update+0x14c/0x230
[    5.415595]  jump_label_update+0x164/0x1b0
[    5.415598]  static_key_enable_cpuslocked+0xf8/0x138
[    5.415602]  static_key_enable+0x24/0x40
[    5.415605]  toggle_allocation_gate+0x5c/0x110
[    5.415608]  process_one_work+0x1e8/0x450
[    5.415614]  worker_thread+0x250/0x3c8
[    5.415616]  kthread+0x264/0x2e0
[    5.415620]  ret_from_fork+0x10/0x20
[    8.826703] smp: csd: CSD lock (#1) got unstuck on CPU#00, CPU#01 released the lock.
[    8.827333] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])
[    8.827341] acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3]
[    8.827387] acpi PNP0A08:00: _OSC: platform does not support [PME AER DPC]
[    8.827437] acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PCIeCapability LTR]
[    8.827850] acpi PNP0A08:00: ECAM area [mem 0x610010000000-0x61001fffffff] reserved by PNP0C02:01
[    8.827880] acpi PNP0A08:00: ECAM at [mem 0x610010000000-0x61001fffffff] for [bus 00-ff]
[    8.827893] ACPI: Remapped I/O 0x0000610020000000 to [io  0x0000-0xffff window]
[    8.827933] PCI host bridge to bus 0002:00
[    8.827938] pci_bus 0002:00: root bus resource [mem 0x610040000000-0x6100bfffffff window] (bus address [0x40000000-0xbfffffff])
[    8.827942] pci_bus 0002:00: root bus resource [mem 0x6100c0000000-0x617fffffffff window]
[    8.827944] pci_bus 0002:00: root bus resource [io  0x0000-0xffff window]
[    8.827947] pci_bus 0002:00: root bus resource [bus 00-ff]
[    8.827965] pci 0002:00:00.0: [10de:22b2] type 01 class 0x060400 PCIe Root Port
[    8.827980] pci 0002:00:00.0: PCI bridge to [bus 01]
[    8.827984] pci 0002:00:00.0:   bridge window [io  0x1000-0x1fff]
[    8.827987] pci 0002:00:00.0:   bridge window [mem 0x610040000000-0x6100402fffff]
[    8.827994] pci 0002:00:00.0:   bridge window [mem 0x6100c0000000-0x6100c17fffff 64bit pref]
[    8.828044] pci 0002:00:00.0: PME# supported from D0 D3hot
[    8.828287] pci 0002:01:00.0: [14e4:1750] type 00 class 0x020000 PCIe Endpoint
[    8.828321] pci 0002:01:00.0: BAR 0 [mem 0x6100c1000000-0x6100c100ffff 64bit pref]
[    8.828326] pci 0002:01:00.0: BAR 2 [mem 0x6100c0000000-0x6100c0ffffff 64bit pref]
[    8.828329] pci 0002:01:00.0: BAR 4 [mem 0x6100c1010000-0x6100c1017fff 64bit pref]
[    8.828333] pci 0002:01:00.0: ROM [mem 0x610040000000-0x61004007ffff pref]
[    8.828427] pci 0002:01:00.0: PME# supported from D0 D3hot D3cold
[    8.828613] pci_bus 0002:00: on NUMA node 0
[    8.828618] pci 0002:00:00.0: bridge window [io  0x1000-0x0fff] to [bus 01] add_size 1000
[    8.828621] pci 0002:00:00.0: bridge window [mem 0x00100000-0x000fffff] to [bus 01] add_size 300000 add_align 100000
[    8.828627] pci 0002:00:00.0: bridge window [mem 0x6100c0000000-0x6100c17fffff 64bit pref]: assigned
[    8.828630] pci 0002:00:00.0: bridge window [mem 0x610040000000-0x6100402fffff]: assigned
[    8.828632] pci 0002:00:00.0: bridge window [io  0x1000-0x1fff]: assigned
[    8.828636] pci 0002:01:00.0: BAR 2 [mem 0x6100c0000000-0x6100c0ffffff 64bit pref]: assigned
[    8.828644] pci 0002:01:00.0: ROM [mem 0x610040000000-0x61004007ffff pref]: assigned
[    8.828646] pci 0002:01:00.0: BAR 0 [mem 0x6100c1000000-0x6100c100ffff 64bit pref]: assigned
[    8.828654] pci 0002:01:00.0: BAR 4 [mem 0x6100c1010000-0x6100c1017fff 64bit pref]: assigned
[    8.828662] pci 0002:00:00.0: PCI bridge to [bus 01]
[    8.828666] pci 0002:00:00.0:   bridge window [io  0x1000-0x1fff]
[    8.828670] pci 0002:00:00.0:   bridge window [mem 0x610040000000-0x6100402fffff]
[    8.828673] pci 0002:00:00.0:   bridge window [mem 0x6100c0000000-0x6100c17fffff 64bit pref]
[    8.828677] pci_bus 0002:00: resource 4 [mem 0x610040000000-0x6100bfffffff window]
[    8.828680] pci_bus 0002:00: resource 5 [mem 0x6100c0000000-0x617fffffffff window]
[    8.828682] pci_bus 0002:00: resource 6 [io  0x0000-0xffff window]
[    8.828685] pci_bus 0002:01: resource 0 [io  0x1000-0x1fff]
[    8.828688] pci_bus 0002:01: resource 1 [mem 0x610040000000-0x6100402fffff]
[    8.828691] pci_bus 0002:01: resource 2 [mem 0x6100c0000000-0x6100c17fffff 64bit pref]
[    8.828792] ACPI: PCI Root Bridge [PCI3] (domain 0003 [bus 00-ff])
[    8.828797] acpi PNP0A08:01: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3]
[    8.828831] acpi PNP0A08:01: _OSC: platform does not support [PME AER DPC]
[    8.828884] acpi PNP0A08:01: _OSC: OS now controls [PCIeHotplug PCIeCapability LTR]
[    8.829285] acpi PNP0A08:01: ECAM area [mem 0x618010000000-0x61801fffffff] reserved by PNP0C02:02
[    8.829300] acpi PNP0A08:01: ECAM at [mem 0x618010000000-0x61801fffffff] for [bus 00-ff]
[    8.829307] ACPI: Remapped I/O 0x0000618020000000 to [io  0x10000-0x1ffff window]
[    8.829337] PCI host bridge to bus 0003:00
[    8.829342] pci_bus 0003:00: root bus resource [mem 0x618040000000-0x6180bfffffff window] (bus address [0x40000000-0xbfffffff])
[    8.829346] pci_bus 0003:00: root bus resource [mem 0x6180c0000000-0x61ffffffffff window]
[    8.829349] pci_bus 0003:00: root bus resource [io  0x10000-0x1ffff window] (bus address [0x0000-0xffff])
[    8.829351] pci_bus 0003:00: root bus resource [bus 00-ff]
[    8.829370] pci 0003:00:00.0: [10de:22b8] type 01 class 0x060400 PCIe Root Port
[    8.829392] pci 0003:00:00.0: PCI bridge to [bus 01]
[    8.829398] pci 0003:00:00.0:   bridge window [io  0x10000-0x10fff]
[    8.829402] pci 0003:00:00.0:   bridge window [mem 0x618040000000-0x6180401fffff]
[    8.829411] pci 0003:00:00.0:   bridge window [mem 0x6180c0000000-0x6180c01fffff 64bit pref]
[    8.829494] pci 0003:00:00.0: PME# supported from D0 D3hot
[    8.829779] pci_bus 0003:00: on NUMA node 0
[    8.829781] pci 0003:00:00.0: bridge window [io  0x1000-0x0fff] to [bus 01] add_size 1000
[    8.829784] pci 0003:00:00.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 01] add_size 200000 add_align 100000
[    8.829787] pci 0003:00:00.0: bridge window [mem 0x00100000-0x000fffff] to [bus 01] add_size 200000 add_align 100000
[    8.829790] pci 0003:00:00.0: bridge window [mem 0x618040000000-0x6180401fffff]: assigned
[    8.829793] pci 0003:00:00.0: bridge window [mem 0x6180c0000000-0x6180c01fffff 64bit pref]: assigned
[    8.829795] pci 0003:00:00.0: bridge window [io  0x10000-0x10fff]: assigned
[    8.829798] pci 0003:00:00.0: PCI bridge to [bus 01]
[    8.829802] pci 0003:00:00.0:   bridge window [io  0x10000-0x10fff]
[    8.829807] pci 0003:00:00.0:   bridge window [mem 0x618040000000-0x6180401fffff]
[    8.829811] pci 0003:00:00.0:   bridge window [mem 0x6180c0000000-0x6180c01fffff 64bit pref]
[    8.829817] pci_bus 0003:00: resource 4 [mem 0x618040000000-0x6180bfffffff window]
[    8.829819] pci_bus 0003:00: resource 5 [mem 0x6180c0000000-0x61ffffffffff window]
[    8.829822] pci_bus 0003:00: resource 6 [io  0x10000-0x1ffff window]
[    8.829824] pci_bus 0003:01: resource 0 [io  0x10000-0x10fff]
[    8.829827] pci_bus 0003:01: resource 1 [mem 0x618040000000-0x6180401fffff]
[    8.829831] pci_bus 0003:01: resource 2 [mem 0x6180c0000000-0x6180c01fffff 64bit pref]
[    8.829883] ACPI: PCI Root Bridge [PCI6] (domain 0006 [bus 00-ff])
[    8.829888] acpi PNP0A08:02: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3]
[    8.829916] acpi PNP0A08:02: _OSC: platform does not support [PME AER DPC]
[    8.829961] acpi PNP0A08:02: _OSC: OS now controls [PCIeHotplug PCIeCapability LTR]
[    8.830358] acpi PNP0A08:02: ECAM area [mem 0x630010000000-0x63001fffffff] reserved by PNP0C02:03
[    8.830370] acpi PNP0A08:02: ECAM at [mem 0x630010000000-0x63001fffffff] for [bus 00-ff]
[    8.830378] ACPI: Remapped I/O 0x0000630020000000 to [io  0x20000-0x2ffff window]
[    8.830406] PCI host bridge to bus 0006:00
[    8.830410] pci_bus 0006:00: root bus resource [mem 0x630040000000-0x6300bfffffff window] (bus address [0x40000000-0xbfffffff])
[    8.830413] pci_bus 0006:00: root bus resource [mem 0x6300c0000000-0x63ffffffffff window]
[    8.830416] pci_bus 0006:00: root bus resource [io  0x20000-0x2ffff window] (bus address [0x0000-0xffff])
[    8.830418] pci_bus 0006:00: root bus resource [bus 00-ff]
[    8.830432] pci 0006:00:00.0: [10de:22b2] type 01 class 0x060400 PCIe Root Port
[    8.830444] pci 0006:00:00.0: PCI bridge to [bus 01]
[    8.830448] pci 0006:00:00.0:   bridge window [io  0x20000-0x20fff]
[    8.830451] pci 0006:00:00.0:   bridge window [mem 0x630040000000-0x6300402fffff]
[    8.830457] pci 0006:00:00.0:   bridge window [mem 0x6300c0000000-0x6300c01fffff 64bit pref]
[    8.830503] pci 0006:00:00.0: PME# supported from D0 D3hot
[    8.830723] pci 0006:01:00.0: [1344:51c3] type 00 class 0x010802 PCIe Endpoint
[    8.830764] pci 0006:01:00.0: BAR 0 [mem 0x630040000000-0x63004003ffff 64bit]
[    8.830772] pci 0006:01:00.0: ROM [mem 0x630040000000-0x63004003ffff pref]
[    8.830846] pci 0006:01:00.0: PME# supported from D0 D1 D3hot
[    8.830923] pci 0006:01:00.0: 31.504 Gb/s available PCIe bandwidth, limited by 8.0 GT/s PCIe x4 link at 0006:00:00.0 (capable of 63.012 Gb/s with 16.0 GT/s PCIe x4 link)
[    8.830983] pci_bus 0006:00: on NUMA node 0
[    8.830986] pci 0006:00:00.0: bridge window [io  0x1000-0x0fff] to [bus 01] add_size 1000
[    8.830989] pci 0006:00:00.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 01] add_size 200000 add_align 100000
[    8.830992] pci 0006:00:00.0: bridge window [mem 0x00100000-0x001fffff] to [bus 01] add_size 200000 add_align 100000
[    8.830996] pci 0006:00:00.0: bridge window [mem 0x630040000000-0x6300402fffff]: assigned
[    8.830998] pci 0006:00:00.0: bridge window [mem 0x6300c0000000-0x6300c01fffff 64bit pref]: assigned
[    8.831001] pci 0006:00:00.0: bridge window [io  0x20000-0x20fff]: assigned
[    8.831005] pci 0006:01:00.0: BAR 0 [mem 0x630040000000-0x63004003ffff 64bit]: assigned
[    8.831015] pci 0006:01:00.0: ROM [mem 0x630040040000-0x63004007ffff pref]: assigned
[    8.831018] pci 0006:00:00.0: PCI bridge to [bus 01]
[    8.831020] pci 0006:00:00.0:   bridge window [io  0x20000-0x20fff]
[    8.831024] pci 0006:00:00.0:   bridge window [mem 0x630040000000-0x6300402fffff]
[    8.831029] pci 0006:00:00.0:   bridge window [mem 0x6300c0000000-0x6300c01fffff 64bit pref]
[    8.831033] pci_bus 0006:00: resource 4 [mem 0x630040000000-0x6300bfffffff window]
[    8.831036] pci_bus 0006:00: resource 5 [mem 0x6300c0000000-0x63ffffffffff window]
[    8.831039] pci_bus 0006:00: resource 6 [io  0x20000-0x2ffff window]
[    8.831041] pci_bus 0006:01: resource 0 [io  0x20000-0x20fff]
[    8.831044] pci_bus 0006:01: resource 1 [mem 0x630040000000-0x6300402fffff]
[    8.831047] pci_bus 0006:01: resource 2 [mem 0x6300c0000000-0x6300c01fffff 64bit pref]
[    8.831138] ACPI: PCI Root Bridge [PCI7] (domain 0007 [bus 00-ff])
[    8.831141] acpi PNP0A08:03: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3]
[    8.831169] acpi PNP0A08:03: _OSC: platform does not support [PME AER DPC]
[    8.831215] acpi PNP0A08:03: _OSC: OS now controls [PCIeHotplug PCIeCapability LTR]
[    8.831617] acpi PNP0A08:03: ECAM area [mem 0x640010000000-0x64001fffffff] reserved by PNP0C02:04
[    8.831629] acpi PNP0A08:03: ECAM at [mem 0x640010000000-0x64001fffffff] for [bus 00-ff]
[    8.831636] ACPI: Remapped I/O 0x0000640020000000 to [io  0x30000-0x3ffff window]
[    8.831672] PCI host bridge to bus 0007:00
[    8.831676] pci_bus 0007:00: root bus resource [mem 0x640040000000-0x6400bfffffff window] (bus address [0x40000000-0xbfffffff])
[    8.831679] pci_bus 0007:00: root bus resource [mem 0x6400c0000000-0x64ffffffffff window]
[    8.831681] pci_bus 0007:00: root bus resource [io  0x30000-0x3ffff window] (bus address [0x0000-0xffff])
[    8.831684] pci_bus 0007:00: root bus resource [bus 00-ff]
[    8.831702] pci 0007:00:00.0: [10de:22b8] type 01 class 0x060400 PCIe Root Port
[    8.831722] pci 0007:00:00.0: PCI bridge to [bus 01]
[    8.831730] pci 0007:00:00.0:   bridge window [io  0x30000-0x30fff]
[    8.831734] pci 0007:00:00.0:   bridge window [mem 0x640040000000-0x6400401fffff]
[    8.831742] pci 0007:00:00.0:   bridge window [mem 0x6400c0000000-0x6400c01fffff 64bit pref]
[    8.831823] pci 0007:00:00.0: PME# supported from D0 D3hot
[    8.832100] pci_bus 0007:00: on NUMA node 0
[    8.832102] pci 0007:00:00.0: bridge window [io  0x1000-0x0fff] to [bus 01] add_size 1000
[    8.832105] pci 0007:00:00.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 01] add_size 200000 add_align 100000
[    8.832108] pci 0007:00:00.0: bridge window [mem 0x00100000-0x000fffff] to [bus 01] add_size 200000 add_align 100000
[    8.832112] pci 0007:00:00.0: bridge window [mem 0x640040000000-0x6400401fffff]: assigned
[    8.832115] pci 0007:00:00.0: bridge window [mem 0x6400c0000000-0x6400c01fffff 64bit pref]: assigned
[    8.832118] pci 0007:00:00.0: bridge window [io  0x30000-0x30fff]: assigned
[    8.832121] pci 0007:00:00.0: PCI bridge to [bus 01]
[    8.832124] pci 0007:00:00.0:   bridge window [io  0x30000-0x30fff]
[    8.832128] pci 0007:00:00.0:   bridge window [mem 0x640040000000-0x6400401fffff]
[    8.832132] pci 0007:00:00.0:   bridge window [mem 0x6400c0000000-0x6400c01fffff 64bit pref]
[    8.832138] pci_bus 0007:00: resource 4 [mem 0x640040000000-0x6400bfffffff window]
[    8.832141] pci_bus 0007:00: resource 5 [mem 0x6400c0000000-0x64ffffffffff window]
[    8.832145] pci_bus 0007:00: resource 6 [io  0x30000-0x3ffff window]
[    8.832147] pci_bus 0007:01: resource 0 [io  0x30000-0x30fff]
[    8.832150] pci_bus 0007:01: resource 1 [mem 0x640040000000-0x6400401fffff]
[    8.832153] pci_bus 0007:01: resource 2 [mem 0x6400c0000000-0x6400c01fffff 64bit pref]
[    8.832209] ACPI: PCI Root Bridge [PCI8] (domain 0008 [bus 00-ff])
[    8.832212] acpi PNP0A08:04: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI EDR HPX-Type3]
[    8.832238] acpi PNP0A08:04: _OSC: platform does not support [PME AER DPC]
[    8.832283] acpi PNP0A08:04: _OSC: OS now controls [PCIeHotplug PCIeCapability LTR]
[    8.832700] acpi PNP0A08:04: ECAM area [mem 0x650010000000-0x65001fffffff] reserved by PNP0C02:05
[    8.832712] acpi PNP0A08:04: ECAM at [mem 0x650010000000-0x65001fffffff] for [bus 00-ff]
[    8.832720] ACPI: Remapped I/O 0x0000650020000000 to [io  0x40000-0x4ffff window]
[    8.832753] PCI host bridge to bus 0008:00
[    8.832758] pci_bus 0008:00: root bus resource [mem 0x650040000000-0x6500bfffffff window] (bus address [0x40000000-0xbfffffff])
[    8.832760] pci_bus 0008:00: root bus resource [mem 0x6500c0000000-0x65ffffffffff window]
[    8.832763] pci_bus 0008:00: root bus resource [io  0x40000-0x4ffff window] (bus address [0x0000-0xffff])
[    8.832765] pci_bus 0008:00: root bus resource [bus 00-ff]
[    8.832785] pci 0008:00:00.0: [10de:22b9] type 01 class 0x060400 PCIe Root Port
[    8.832806] pci 0008:00:00.0: PCI bridge to [bus 01]
[    8.832813] pci 0008:00:00.0:   bridge window [io  0x40000-0x40fff]
[    8.832817] pci 0008:00:00.0:   bridge window [mem 0x650040000000-0x6500401fffff]
[    8.832826] pci 0008:00:00.0:   bridge window [mem 0x6500c0000000-0x6500c01fffff 64bit pref]
[    8.832908] pci 0008:00:00.0: PME# supported from D0 D3hot
[    8.833180] pci_bus 0008:00: on NUMA node 0
[    8.833184] pci 0008:00:00.0: bridge window [io  0x1000-0x0fff] to [bus 01] add_size 1000
[    8.833186] pci 0008:00:00.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 01] add_size 200000 add_align 100000
[    8.833189] pci 0008:00:00.0: bridge window [mem 0x00100000-0x000fffff] to [bus 01] add_size 200000 add_align 100000
[    8.833192] pci 0008:00:00.0: bridge window [mem 0x650040000000-0x6500401fffff]: assigned
[    8.833195] pci 0008:00:00.0: bridge window [mem 0x6500c0000000-0x6500c01fffff 64bit pref]: assigned
[    8.833197] pci 0008:00:00.0: bridge window [io  0x40000-0x40fff]: assigned
[    8.833200] pci 0008:00:00.0: PCI bridge to [bus 01]
[    8.833203] pci 0008:00:00.0:   bridge window [io  0x40000-0x40fff]
[    8.833208] pci 0008:00:00.0:   bridge window [mem 0x650040000000-0x6500401fffff]
[    8.833211] pci 0008:00:00.0:   bridge window [mem 0x6500c0000000-0x6500c01fffff 64bit pref]
[    8.833217] pci_bus 0008:00: resource 4 [mem 0x650040000000-0x6500bfffffff window]
[    8.833219] pci_bus 0008:00: resource 5 [mem 0x6500c0000000-0x65ffffffffff window]
[    8.833222] pci_bus 0008:00: resource 6 [io  0x40000-0x4ffff window]
[    8.833225] pci_bus 0008:01: resource 0 [io  0x40000-0x40fff]
[    8.833227] pci_bus 0008:01: resource 1 [mem 0x650040000000-0x6500401fffff]
[    8.833230] pci_bus 0008:01: resource 2 [mem 0x6500c0000000-0x6500c01fffff 64bit pref]
[    8.833567] iommu: Default domain type: Passthrough (set via kernel command line)
[    9.748361] SCSI subsystem initialized
[    9.748370] libata version 3.00 loaded.
[    9.748391] ACPI: bus type USB registered
[    9.748404] usbcore: registered new interface driver usbfs
[    9.748411] usbcore: registered new interface driver hub
[    9.748424] usbcore: registered new device driver usb
[    9.748464] pps_core: LinuxPPS API ver. 1 registered
[    9.748466] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[    9.748469] PTP clock support registered
[    9.748564] EDAC MC: Ver: 3.0.0
[    9.748648] scmi_core: SCMI protocol bus registered
[    9.748682] efivars: Registered efivars operations
[    9.763956] clocksource: Switched to clocksource arch_sys_counter
[    9.764077] Warning: could not register annotated branches stats
[    9.764372] VFS: Disk quotas dquot_6.6.0
[    9.764381] VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
[    9.794973] pnp: PnP ACPI init
[    9.795170] system 00:00: [mem 0x610010000000-0x61001fffffff window] could not be reserved
[    9.795195] system 00:01: [mem 0x618010000000-0x61801fffffff window] could not be reserved
[    9.795215] system 00:02: [mem 0x630010000000-0x63001fffffff window] could not be reserved
[    9.795235] system 00:03: [mem 0x640010000000-0x64001fffffff window] could not be reserved
[    9.795254] system 00:04: [mem 0x650010000000-0x65001fffffff window] could not be reserved
[    9.795259] pnp: PnP ACPI: found 5 devices
[    9.796910] NET: Registered PF_INET protocol family
[    9.796965] IP idents hash table entries: 262144 (order: 5, 2097152 bytes, linear)
[    9.806138] tcp_listen_portaddr_hash hash table entries: 65536 (order: 5, 2097152 bytes, linear)
[    9.806432] Table-perturb hash table entries: 65536 (order: 2, 262144 bytes, linear)
[    9.806439] TCP established hash table entries: 524288 (order: 6, 4194304 bytes, linear)
[    9.807409] TCP bind hash table entries: 65536 (order: 6, 4194304 bytes, linear)
[    9.807967] TCP: Hash tables configured (established 524288 bind 65536)
[    9.808186] MPTCP token hash table entries: 65536 (order: 5, 3145728 bytes, linear)
[    9.808526] UDP hash table entries: 65536 (order: 7, 10485760 bytes, linear)
[    9.810122] UDP-Lite hash table entries: 65536 (order: 7, 10485760 bytes, linear)
[    9.811792] NET: Registered PF_UNIX/PF_LOCAL protocol family
[    9.811801] NET: Registered PF_XDP protocol family
[    9.811830] PCI: CLS 64 bytes, default 64
[    9.811902] Trying to unpack rootfs image as initramfs...
[    9.827215] kvm [1]: nv: 566 coarse grained trap handlers
[    9.827286] kvm [1]: IPA Size Limit: 48 bits
[    9.842650] kvm [1]: GICv4 support disabled
[    9.842652] kvm [1]: GICv3: no GICV resource entry
[    9.842654] kvm [1]: disabling GICv2 emulation
[    9.856294] kvm [1]: GIC system register CPU interface enabled
[    9.856311] kvm [1]: vgic interrupt IRQ9
[    9.882011] kvm [1]: VHE mode initialized successfully
[    9.906518] Initialise system trusted keyrings
[    9.906571] workingset: timestamp_bits=40 max_order=22 bucket_order=0
[    9.906797] fuse: init (API version 7.44)
[    9.906864] SGI XFS with ACLs, security attributes, realtime, quota, no debug enabled
[    9.907175] cryptd: max_cpu_qlen set to 1000
[    9.915059] NET: Registered PF_ALG protocol family
[    9.915066] xor: measuring software checksum speed
[    9.915156]    8regs           : 37215 MB/sec
[    9.915246]    32regs          : 37242 MB/sec
[    9.915324]    arm64_neon      : 42791 MB/sec
[    9.915326] xor: using function: arm64_neon (42791 MB/sec)
[    9.915330] Key type asymmetric registered
[    9.915332] Asymmetric key parser 'x509' registered
[    9.915353] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 243)
[    9.915404] io scheduler mq-deadline registered
[    9.915407] io scheduler kyber registered
[    9.919590] Memory allocation profiling is not supported!
[    9.941873] thermal LNXTHERM:00: registered as thermal_zone0
[    9.941877] ACPI: thermal: Thermal Zone [TZ00] (51 C)
[    9.942232] thermal LNXTHERM:01: registered as thermal_zone1
[    9.942235] ACPI: thermal: Thermal Zone [TZ01] (51 C)
[    9.942560] thermal LNXTHERM:02: registered as thermal_zone2
[    9.942562] ACPI: thermal: Thermal Zone [TZ02] (52 C)
[    9.942888] thermal LNXTHERM:03: registered as thermal_zone3
[    9.942890] ACPI: thermal: Thermal Zone [TZ03] (52 C)
[    9.943212] thermal LNXTHERM:04: registered as thermal_zone4
[    9.943214] ACPI: thermal: Thermal Zone [TZ04] (50 C)
[    9.943536] thermal LNXTHERM:05: registered as thermal_zone5
[    9.943538] ACPI: thermal: Thermal Zone [TZ05] (51 C)
[    9.943859] thermal LNXTHERM:06: registered as thermal_zone6
[    9.943860] ACPI: thermal: Thermal Zone [TZ06] (51 C)
[    9.944186] thermal LNXTHERM:07: registered as thermal_zone7
[    9.944188] ACPI: thermal: Thermal Zone [TZ07] (47 C)
[    9.944508] thermal LNXTHERM:08: registered as thermal_zone8
[    9.944510] ACPI: thermal: Thermal Zone [TZ08] (41 C)
[    9.944854] thermal LNXTHERM:09: registered as thermal_zone9
[    9.944856] ACPI: thermal: Thermal Zone [TZ09] (52 C)
[    9.945179] thermal LNXTHERM:0a: registered as thermal_zone10
[    9.945181] ACPI: thermal: Thermal Zone [TZ0A] (40 C)
[    9.945502] thermal LNXTHERM:0b: registered as thermal_zone11
[    9.945503] ACPI: thermal: Thermal Zone [TZ0B] (43 C)
[    9.945569] thermal LNXTHERM:0c: registered as thermal_zone12
[    9.945571] ACPI: thermal: Thermal Zone [TZL0] (48 C)
[    9.945593] ERST: Error Record Serialization Table (ERST) support is initialized.
[    9.947628] pstore: Using crash dump compression: deflate
[    9.947631] pstore: Registered erst as persistent store backend
[    9.947676] EINJ: Error INJection is initialized.
[    9.947716] ACPI GTDT: found 1 SBSA generic Watchdog(s).
[    9.947885] Tegra Revision: A02 SKU: 38 CPU Process: 0 SoC Process: 0
[    9.948040] Serial: 8250/16550 driver, 16 ports, IRQ sharing enabled
[    9.948836] arm-smmu-v3 arm-smmu-v3.5.auto: option mask 0x0
[    9.948847] arm-smmu-v3 arm-smmu-v3.5.auto: ias 48-bit, oas 48-bit (features 0x001e1fbf)
[    9.949000] arm-smmu-v3 arm-smmu-v3.5.auto: allocated 524288 entries for cmdq
[    9.949293] arm-smmu-v3 arm-smmu-v3.5.auto: allocated 524288 entries for evtq
[    9.949457] arm-smmu-v3 arm-smmu-v3.5.auto: allocated 524288 entries for priq
[    9.949508] arm-smmu-v3 arm-smmu-v3.5.auto: msi_domain absent - falling back to wired irqs
[    9.949569] arm-smmu-v3 arm-smmu-v3.5.auto: no priq irq - PRI will be broken
[    9.949633] platform NVDA2006:00: Adding to iommu group 0
[    9.949649] platform NVDA2003:00: Adding to iommu group 1
[    9.949664] platform NVDA1513:00: Adding to iommu group 2
[    9.949731] arm-smmu-v3 arm-smmu-v3.6.auto: option mask 0x0
[    9.949739] arm-smmu-v3 arm-smmu-v3.6.auto: ias 48-bit, oas 48-bit (features 0x001e1fbf)
[    9.949889] arm-smmu-v3 arm-smmu-v3.6.auto: allocated 524288 entries for cmdq
[    9.950181] arm-smmu-v3 arm-smmu-v3.6.auto: allocated 524288 entries for evtq
[    9.950343] arm-smmu-v3 arm-smmu-v3.6.auto: allocated 524288 entries for priq
[    9.950390] arm-smmu-v3 arm-smmu-v3.6.auto: msi_domain absent - falling back to wired irqs
[    9.950442] arm-smmu-v3 arm-smmu-v3.6.auto: no priq irq - PRI will be broken
[    9.950528] pci 0002:00:00.0: Adding to iommu group 3
[    9.950544] pci 0002:01:00.0: Adding to iommu group 4
[    9.950558] pci 0003:00:00.0: Adding to iommu group 5
[    9.950582] arm-smmu-v3 arm-smmu-v3.7.auto: option mask 0x0
[    9.950591] arm-smmu-v3 arm-smmu-v3.7.auto: ias 48-bit, oas 48-bit (features 0x001e1fbf)
[    9.950737] arm-smmu-v3 arm-smmu-v3.7.auto: allocated 524288 entries for cmdq
[    9.951034] arm-smmu-v3 arm-smmu-v3.7.auto: allocated 524288 entries for evtq
[    9.951196] arm-smmu-v3 arm-smmu-v3.7.auto: allocated 524288 entries for priq
[    9.951243] arm-smmu-v3 arm-smmu-v3.7.auto: msi_domain absent - falling back to wired irqs
[    9.951292] arm-smmu-v3 arm-smmu-v3.7.auto: no priq irq - PRI will be broken
[    9.951374] pci 0006:00:00.0: Adding to iommu group 6
[    9.951390] pci 0006:01:00.0: Adding to iommu group 7
[    9.951405] pci 0007:00:00.0: Adding to iommu group 8
[    9.951426] arm-smmu-v3 arm-smmu-v3.8.auto: option mask 0x0
[    9.951434] arm-smmu-v3 arm-smmu-v3.8.auto: ias 48-bit, oas 48-bit (features 0x001e1fbf)
[    9.951580] arm-smmu-v3 arm-smmu-v3.8.auto: allocated 524288 entries for cmdq
[    9.951872] arm-smmu-v3 arm-smmu-v3.8.auto: allocated 524288 entries for evtq
[    9.952038] arm-smmu-v3 arm-smmu-v3.8.auto: allocated 524288 entries for priq
[    9.952085] arm-smmu-v3 arm-smmu-v3.8.auto: msi_domain absent - falling back to wired irqs
[    9.952134] arm-smmu-v3 arm-smmu-v3.8.auto: no priq irq - PRI will be broken
[    9.952206] arm-smmu-v3 arm-smmu-v3.9.auto: option mask 0x0
[    9.952213] arm-smmu-v3 arm-smmu-v3.9.auto: ias 48-bit, oas 48-bit (features 0x001e1fbf)
[    9.952360] arm-smmu-v3 arm-smmu-v3.9.auto: allocated 524288 entries for cmdq
[    9.952652] arm-smmu-v3 arm-smmu-v3.9.auto: allocated 524288 entries for evtq
[    9.952816] arm-smmu-v3 arm-smmu-v3.9.auto: allocated 524288 entries for priq
[    9.952863] arm-smmu-v3 arm-smmu-v3.9.auto: msi_domain absent - falling back to wired irqs
[    9.952917] arm-smmu-v3 arm-smmu-v3.9.auto: no priq irq - PRI will be broken
[    9.953006] pci 0008:00:00.0: Adding to iommu group 9
[    9.963864] wireguard: WireGuard 1.0.0 loaded. See www.wireguard.com for information.
[    9.963866] wireguard: Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
[    9.963878] nvme nvme0: pci function 0006:01:00.0
[    9.992700] bnxt_en 0002:01:00.0 eth0: Broadcom BCM57508 NetXtreme-E 10Gb/25Gb/50Gb/100Gb/200Gb Ethernet found at mem 6100c1000000, node addr d4:04:e6:3f:8a:96
[    9.992710] bnxt_en 0002:01:00.0: 63.012 Gb/s available PCIe bandwidth (16.0 GT/s PCIe x4 link)
[    9.992796] igb: Intel(R) Gigabit Ethernet Network Driver
[    9.992799] igb: Copyright (c) 2007-2014 Intel Corporation.
[    9.992808] ixgbe: Intel(R) 10 Gigabit PCI Express Network Driver
[    9.992810] ixgbe: Copyright (c) 1999-2016 Intel Corporation.
[    9.993065] usbcore: registered new interface driver ark3116
[    9.993070] usbserial: USB Serial support registered for ark3116
[    9.993076] usbcore: registered new interface driver pl2303
[    9.993082] usbserial: USB Serial support registered for pl2303
[    9.993977] rtc-efi rtc-efi.0: registered as rtc0
[    9.994381] rtc-efi rtc-efi.0: setting system clock to 2025-07-11T10:28:00 UTC (1752229680)
[    9.994408] i2c_dev: i2c /dev entries driver
[    9.995186] sbsa-gwdt sbsa-gwdt.0: Initialized with 10s timeout @ 1000000000 Hz, action=0.
[    9.995246] device-mapper: core: CONFIG_IMA_DISABLE_HTABLE is disabled. Duplicate IMA measurements will not be recorded in the IMA log.
[    9.995311] device-mapper: ioctl: 4.50.0-ioctl (2025-04-28) initialised: dm-devel@lists.linux.dev
[    9.995919] SMCCC: SOC_ID: ID = jep106:036b:0241 Revision = 0x00000002
[    9.995984] usbcore: registered new interface driver usbhid
[    9.995986] usbhid: USB HID core driver
[    9.997279] nvme nvme0: 72/0/0 default/read/poll queues
[   10.008186] hw perfevents: enabled with armv8_pmuv3_0 PMU driver, 7 (0,8000003f) counters available, using NMIs
[   10.008303] Initializing XFRM netlink socket
[   10.008323] NET: Registered PF_INET6 protocol family
[   10.008874] Segment Routing with IPv6
[   10.008882] In-situ OAM (IOAM) with IPv6
[   10.008910] NET: Registered PF_PACKET protocol family
[   10.008970] Key type dns_resolver registered
[   10.009017] NET: Registered PF_VSOCK protocol family
[   10.011353]  nvme0n1: p1 p2 p3
[   10.012387] registered taskstats version 1
[   10.012774] Loading compiled-in X.509 certificates
[   10.016700] Freeing initrd memory: 25280K
[   10.019092] Loaded X.509 cert 'Build time autogenerated kernel key: 1a46e001355c3b4d6acb43ef64aa5cb4f9aa6815'
[   10.021612] Demotion targets for Node 0: null
[   10.021618] debug_vm_pgtable: [debug_vm_pgtable         ]: Validating architecture page table helpers
[   10.022019] Btrfs loaded, zoned=no, fsverity=yes
[   10.022062] ima: No TPM chip found, activating TPM-bypass!
[   10.022066] ima: Allocated hash algorithm: sha256
[   10.022077] ima: No architecture policies found
[   10.022332] pcieport 0002:00:00.0: PME: Signaling with IRQ 165
[   10.022404] pcieport 0002:00:00.0: AER: enabled with IRQ 165
[   10.022428] pcieport 0002:00:00.0: pciehp: Slot #2 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise- Interlock- NoCompl+ IbPresDis- LLActRep+
[   10.022530] pcieport 0002:00:00.0: DPC: enabled with IRQ 165
[   10.022532] pcieport 0002:00:00.0: DPC: error containment capabilities: Int Msg #0, RPExt- PoisonedTLP+ SwTrigger+ RP PIO Log 0, DL_ActiveErr+
[   10.022682] pcieport 0003:00:00.0: PME: Signaling with IRQ 166
[   10.022740] pcieport 0003:00:00.0: AER: enabled with IRQ 166
[   10.022758] pcieport 0003:00:00.0: pciehp: Slot #3 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise- Interlock- NoCompl+ IbPresDis- LLActRep+
[   10.022853] pcieport 0003:00:00.0: DPC: enabled with IRQ 166
[   10.022855] pcieport 0003:00:00.0: DPC: error containment capabilities: Int Msg #0, RPExt- PoisonedTLP+ SwTrigger+ RP PIO Log 0, DL_ActiveErr+
[   10.023028] pcieport 0006:00:00.0: PME: Signaling with IRQ 167
[   10.023082] pcieport 0006:00:00.0: AER: enabled with IRQ 167
[   10.023099] pcieport 0006:00:00.0: pciehp: Slot #6 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise- Interlock- NoCompl+ IbPresDis- LLActRep+
[   10.023194] pcieport 0006:00:00.0: DPC: enabled with IRQ 167
[   10.023196] pcieport 0006:00:00.0: DPC: error containment capabilities: Int Msg #0, RPExt- PoisonedTLP+ SwTrigger+ RP PIO Log 0, DL_ActiveErr+
[   10.023337] pcieport 0007:00:00.0: PME: Signaling with IRQ 168
[   10.023395] pcieport 0007:00:00.0: AER: enabled with IRQ 168
[   10.023413] pcieport 0007:00:00.0: pciehp: Slot #7 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise- Interlock- NoCompl+ IbPresDis- LLActRep+
[   10.023507] pcieport 0007:00:00.0: DPC: enabled with IRQ 168
[   10.023509] pcieport 0007:00:00.0: DPC: error containment capabilities: Int Msg #0, RPExt- PoisonedTLP+ SwTrigger+ RP PIO Log 0, DL_ActiveErr+
[   10.023678] pcieport 0008:00:00.0: PME: Signaling with IRQ 169
[   10.023739] pcieport 0008:00:00.0: AER: enabled with IRQ 169
[   10.023758] pcieport 0008:00:00.0: pciehp: Slot #8 AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise- Interlock- NoCompl+ IbPresDis- LLActRep+
[   10.023852] pcieport 0008:00:00.0: DPC: enabled with IRQ 169
[   10.023854] pcieport 0008:00:00.0: DPC: error containment capabilities: Int Msg #0, RPExt- PoisonedTLP+ SwTrigger+ RP PIO Log 0, DL_ActiveErr+
[   10.023969] netpoll: netconsole: local port 6666
[   10.023972] netpoll: netconsole: local IPv6 address 2401:db00:209c:171e:face:0:172:0
[   10.023975] netpoll: netconsole: interface name 'eth0'
[   10.023976] netpoll: netconsole: local ethernet address 'ff:ff:ff:ff:ff:ff'
[   10.023978] netpoll: netconsole: remote port 1514
[   10.023980] netpoll: netconsole: remote IPv6 address 2401:db00:eef0:a59::
[   10.023982] netpoll: netconsole: remote ethernet address 76:d4:dd:68:c3:59
[   10.023986] netpoll: netconsole: device eth0 not up yet, forcing it
[   10.038132] NMI watchdog: Enabled. Permanently consumes one hw-PMU counter.
[   10.059252] bnxt_en 0002:01:00.0 eth0: NIC Link is Up, 50000 Mbps (PAM4 56Gbps) full duplex, Flow control: ON - receive
[   10.059257] bnxt_en 0002:01:00.0 eth0: FEC autoneg off encoding: Clause 91 RS544_1XN
[   10.124060] printk: legacy console [netcon_ext0] enabled
[   10.127011] printk: legacy console [netcon0] enabled
[   10.127018] netconsole: network logging started
[   10.134790] clk: Disabling unused clocks
[   10.134804] PM: genpd: Disabling unused power domains
[   10.197303] Freeing unused kernel memory: 11264K
[   10.208685] Run /init as init process
[   10.208694]   with arguments:
[   10.208698]     /init
[   10.208703]   with environment:
[   10.208708]     HOME=/
[   10.208712]     TERM=linux
[   10.208717]     BOOT_IMAGE=(hd0,gpt2)/vmlinuz-6.16.0-rc5-00055-g0c759ecd169d
[   10.208721]     biosdevname=0
[   10.269385] autofs4: module verification failed: signature and/or required key missing - tainting kernel
[   10.356195] systemd[1]: Inserted module 'autofs4'
[   10.451466] systemd[1]: Successfully made /usr/ read-only.
[   10.567346] systemd[1]: systemd 257.6-1.2.hs+fb.el9 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +IPE +SMACK +SECCOMP -GCRYPT +GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBCRYPTSETUP_PLUGINS +LIBFDISK +PCRE2 +PWQUALITY +P11KIT -QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK +BTF +XKBCOMMON +UTMP +SYSVINIT +LIBARCHIVE)
[   10.567368] systemd[1]: Detected architecture arm64.
[   10.567440] systemd[1]: Running in initrd.
[   10.674975] systemd[1]: Hostname set to <foo>.
[   10.874501] systemd[1]: Queued start job for default target initrd.target.
[   11.236688] systemd[1]: Created slice hostcritical.slice - Slice /hostcritical.
[   11.420057] systemd[1]: Started systemd-ask-password-console.path - Dispatch Password Requests to Console Directory Watch.
[   11.576918] systemd[1]: Expecting device dev-disk-by\x2duuid-f89a029a\x2d5900\x2d4918\x2dae30\x2de8657630c770.device - /dev/disk/by-uuid/f89a029a-5900-4918-ae30-e8657630c770...
[   11.734953] systemd[1]: Reached target initrd-usr-fs.target - Initrd /usr File System.
[   11.851386] systemd[1]: Reached target paths.target - Path Units.
[   12.027700] systemd[1]: Reached target slices.target - Slice Units.
[   12.189924] systemd[1]: Reached target swap.target - Swaps.
[   12.311069] systemd[1]: Reached target timers.target - Timer Units.
[   12.482468] systemd[1]: Listening on systemd-journald-dev-log.socket - Journal Socket (/dev/log).
[   12.656973] systemd[1]: Listening on systemd-journald.socket - Journal Sockets.
[   12.803593] systemd[1]: Listening on systemd-udevd-control.socket - udev Control Socket.
[   12.949672] systemd[1]: Listening on systemd-udevd-kernel.socket - udev Kernel Socket.
[   13.080970] systemd[1]: Reached target sockets.target - Socket Units.
[   13.252981] systemd[1]: Starting kmod-static-nodes.service - Create List of Static Device Nodes...
[   13.513924] systemd[1]: Starting systemd-journald.service - Journal Service...
[   13.646755] systemd[1]: Starting systemd-modules-load.service - Load Kernel Modules...
[   13.737157] systemd[1]: Starting systemd-vconsole-setup.service - Virtual Console Setup...
[   13.811226] loop: module loaded
[   13.878644] systemd[1]: Finished kmod-static-nodes.service - Create List of Static Device Nodes.
[   13.896157] power_meter ACPI000D:01: Found ACPI power meter.
[   13.896238] power_meter ACPI000D:02: Found ACPI power meter.
[   13.896282] power_meter ACPI000D:03: Found ACPI power meter.
[   14.032223] systemd[1]: Started systemd-journald.service - Journal Service.
[   15.874967] tegra-qspi NVDA1513:00: cannot use DMA: -19
[   15.875001] tegra-qspi NVDA1513:00: falling back to PIO
[   15.875160] tegra-qspi NVDA1513:00: device reset failed
[   15.883114] tpm_tis_spi spi-PRP0001:01: 2.0 TPM (device-id 0x1B, rev-id 22)
[   16.215299] BTRFS: device label / devid 1 transid 245397 /dev/nvme0n1p3 (259:3) scanned by mount (908)
[   16.215933] BTRFS info (device nvme0n1p3): first mount of filesystem f89a029a-5900-4918-ae30-e8657630c770
[   16.215949] BTRFS info (device nvme0n1p3): using crc32c (crc32c-arm64) checksum algorithm
[   16.215962] BTRFS info (device nvme0n1p3): forcing free space tree for sector size 4096 with page size 65536
[   16.215970] BTRFS info (device nvme0n1p3): using free-space-tree
[   17.186909] systemd[1]: systemd 257.6-1.2.hs+fb.el9 running in system mode (+PAM +AUDIT +SELINUX -APPARMOR +IMA +IPE +SMACK +SECCOMP -GCRYPT +GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN -IPTC +KMOD +LIBCRYPTSETUP +LIBCRYPTSETUP_PLUGINS +LIBFDISK +PCRE2 +PWQUALITY +P11KIT -QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD +BPF_FRAMEWORK +BTF +XKBCOMMON +UTMP +SYSVINIT +LIBARCHIVE)
[   17.186923] systemd[1]: Detected architecture arm64.
[   17.279527] systemd[1]: bpf-restrict-fs: LSM BPF program attached
[   17.294875] systemd-sysv-generator[962]: SysV service '/etc/rc.d/init.d/webserver' lacks a native systemd unit file, automatically generating a unit file for compatibility.
[   17.294909] systemd-sysv-generator[962]: Please update package to include a native systemd unit file.
[   17.294919] systemd-sysv-generator[962]: ⚠️ This compatibility logic is deprecated, expect removal soon. ⚠️
[   17.466546] systemd[1]: /usr/lib/systemd/system/smtpdlite.service:11: Special user nobody configured, this is not safe!
[   17.552288] systemd[1]: /etc/systemd/system/selinux_status.service:13: Special user nobody configured, this is not safe!
[   17.635466] systemd[1]: initrd-switch-root.service: Deactivated successfully.
[   17.635643] systemd[1]: Stopped initrd-switch-root.service - Switch Root.
[   17.651936] systemd[1]: systemd-journald.service: Scheduled restart job, restart counter is at 1.
[   17.652538] systemd[1]: Created slice overcommit.slice - Overcommit Slice.
[   17.669633] systemd[1]: Created slice system-fb_scm_daemon.slice - Slice /system/fb_scm_daemon.
[   17.690696] systemd[1]: Created slice system-fbwatchman.slice - Slice /system/fbwatchman.
[   17.710570] systemd[1]: Created slice system-getty.slice - Slice /system/getty.
[   17.727572] systemd[1]: Created slice system-mcrouter.slice - Slice /system/mcrouter.
[   17.746558] systemd[1]: Created slice system-serial\x2dgetty.slice - Slice /system/serial-getty.
[   17.766471] systemd[1]: Created slice system-sshd\x2dkeygen.slice - Slice /system/sshd-keygen.
[   17.786234] systemd[1]: Created slice user.slice - User and Session Slice.
[   17.803337] systemd[1]: Created slice workload.slice - Workload Slice.
[   17.819250] systemd[1]: Created slice workload-tw.slice - Slice /workload/tw.
[   17.836257] systemd[1]: Created slice workload-wdb.slice - WDBs that are needed for workload.
[   17.855992] systemd[1]: Started systemd-ask-password-console.path - Dispatch Password Requests to Console Directory Watch.
[   17.875952] systemd[1]: Started systemd-ask-password-wall.path - Forward Password Requests to Wall Directory Watch.
[   17.896233] systemd[1]: Set up automount proc-sys-fs-binfmt_misc.automount - Arbitrary Executable File Formats File System Automount Point.
[   17.915925] systemd[1]: Expecting device dev-disk-by\x2dlabel-\x5cx2fboot.device - /dev/disk/by-label/\x2fboot...
[   17.934907] systemd[1]: Expecting device dev-disk-by\x2dlabel-\x5cx2fefi.device - /dev/disk/by-label/\x2fefi...
[   17.951932] systemd[1]: Expecting device dev-ttyAMA0.device - /dev/ttyAMA0...
[   17.965920] systemd[1]: Reached target cryptsetup.target - Local Encrypted Volumes.
[   17.982918] systemd[1]: Reached target hardware_is_ready.target - Hardware is ready.
[   17.999910] systemd[1]: Stopped target initrd-switch-root.target - Switch Root.
[   18.016907] systemd[1]: Stopped target initrd-fs.target - Initrd File Systems.
[   18.033911] systemd[1]: Stopped target initrd-root-fs.target - Initrd Root File System.
[   18.052012] systemd[1]: Reached target integritysetup.target - Local Integrity Protected Volumes.
[   18.071925] systemd[1]: Reached target remote-cryptsetup.target - Remote Encrypted Volumes.
[   18.091906] systemd[1]: Reached target remote-fs.target - Remote File Systems.
[   18.108906] systemd[1]: Reached target slices.target - Slice Units.
[   18.122924] systemd[1]: Reached target time-set.target - System Time Set.
[   18.138041] systemd[1]: Reached target time-sync.target - System Time Synchronized.
[   18.155023] systemd[1]: Reached target veritysetup.target - Local Verity Protected Volumes.
[   18.175004] systemd[1]: Listening on syslog.socket - Syslog Socket.
[   18.189680] systemd[1]: Listening on systemd-coredump.socket - Process Core Dump Socket.
[   18.209379] systemd[1]: Listening on systemd-creds.socket - Credential Encryption/Decryption.
[   18.228970] systemd[1]: Listening on systemd-initctl.socket - initctl Compatibility Named Pipe.
[   18.249059] systemd[1]: Listening on systemd-journald-audit.socket - Journal Audit Socket.
[   18.268968] systemd[1]: Listening on systemd-mountfsd.socket - DDI File System Mounter Socket.
[   18.288959] systemd[1]: Listening on systemd-nsresourced.socket - Namespace Resource Manager Socket.
[   18.308930] systemd[1]: systemd-pcrextend.socket - TPM PCR Measurements was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[   18.308946] systemd[1]: systemd-pcrlock.socket - Make TPM PCR Policy was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[   18.309008] systemd[1]: Listening on systemd-udevd-control.socket - udev Control Socket.
[   18.326946] systemd[1]: Listening on systemd-udevd-kernel.socket - udev Kernel Socket.
[   18.345958] systemd[1]: Listening on systemd-userdbd.socket - User Database Manager Socket.
[   18.383941] systemd[1]: Mounting dev-hugepages.mount - Huge Pages File System...
[   18.400619] systemd[1]: Mounting dev-mqueue.mount - POSIX Message Queue File System...
[   18.417739] systemd[1]: Mounting sys-kernel-debug.mount - /sys/kernel/debug...
[   18.432767] systemd[1]: Mounting sys-kernel-tracing.mount - Kernel Trace File System...
[   18.451688] systemd[1]: Starting kmod-static-nodes.service - Create List of Static Device Nodes...
[   18.470018] systemd[1]: Starting modprobe@configfs.service - Load Kernel Module configfs...
[   18.487830] systemd[1]: Starting modprobe@dm_mod.service - Load Kernel Module dm_mod...
[   18.505834] systemd[1]: Starting modprobe@drm.service - Load Kernel Module drm...
[   18.522822] systemd[1]: Starting modprobe@efi_pstore.service - Load Kernel Module efi_pstore...
[   18.534604] ACPI: bus type drm_connector registered
[   18.541113] systemd[1]: Starting modprobe@fuse.service - Load Kernel Module fuse...
[   18.557005] systemd[1]: Starting modprobe@loop.service - Load Kernel Module loop...
[   18.573112] systemd[1]: Starting nis-domainname.service - Read and set NIS domainname from /etc/sysconfig/network...
[   18.592038] systemd[1]: systemd-fsck-root.service: Deactivated successfully.
[   18.592108] systemd[1]: Stopped systemd-fsck-root.service - File System Check on Root Device.
[   18.611995] systemd[1]: systemd-hibernate-clear.service - Clear Stale Hibernate Storage Info was skipped because of an unmet condition check (ConditionPathExists=/sys/firmware/efi/efivars/HibernateLocation-8cf2644b-4b0b-428f-9387-6d876050dc67).
[   18.613800] systemd[1]: Starting systemd-journald.service - Journal Service...
[   18.629179] systemd[1]: Starting systemd-modules-load.service - Load Kernel Modules...
[   18.658513] systemd[1]: Starting systemd-network-generator.service - Generate network units from Kernel command line...
[   18.676924] systemd[1]: systemd-pcrmachine.service - TPM PCR Machine ID Measurement was skipped because of an unmet condition check (ConditionSecurity=measured-uki).
[   18.678020] systemd[1]: Starting systemd-remount-fs.service - Remount Root and Kernel File Systems...
[   18.696945] systemd[1]: Starting systemd-udev-load-credentials.service - Load udev Rules from Credentials...
[   18.700907] BTRFS info (device nvme0n1p3 state M): turning on sync discard
[   18.700922] BTRFS info (device nvme0n1p3 state M): force zstd compression, level 3
[   18.716020] systemd[1]: Starting systemd-udev-trigger.service - Coldplug All udev Devices...
[   18.736797] systemd[1]: Started systemd-journald.service - Journal Service.
[   18.753982] audit: type=1130 audit(1752229689.259:2): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-journald comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.845934] audit: type=1130 audit(1752229689.351:3): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=kmod-static-nodes comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.865932] audit: type=1130 audit(1752229689.371:4): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@configfs comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.865944] audit: type=1131 audit(1752229689.371:5): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@configfs comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.884973] audit: type=1130 audit(1752229689.390:6): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@dm_mod comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.884984] audit: type=1131 audit(1752229689.390:7): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@dm_mod comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.901924] audit: type=1130 audit(1752229689.407:8): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@drm comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.901937] audit: type=1131 audit(1752229689.407:9): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@drm comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.921922] audit: type=1130 audit(1752229689.427:10): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@efi_pstore comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   18.921933] audit: type=1131 audit(1752229689.427:11): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=modprobe@efi_pstore comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
[   22.359101]  cs_system_cfg: CoreSight Configuration manager initialised
[   22.361196] IPMI message handler: version 39.2
[   22.370489] ipmi device interface
[   22.378404] arm_spe_pmu arm,spe-v1: probed SPEv1.1 for CPUs 0-71 [max_record_sz 64, align 64, features 0x17]
[   22.396643] ipmi_si: IPMI System Interface driver
[   22.402817] ipmi_si: Unable to find any System Interface(s)
[   22.407821] coresight stm0: STM32 initialized
[   22.408791] ipmi_ssif: IPMI SSIF Interface driver
[   22.414153] ipmi_ssif i2c-IPI0001:00: ipmi_ssif: Trying ACPI-specified SSIF interface at i2c address 0x10, adapter NVDA0301:00, slave address 0x20
[   22.418526] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.10.auto: option mask 0x0
[   22.419230] CSCFG registered ete0
[   22.419243] coresight ete0: CPU0: ete v1.0 initialized
[   22.420055] CSCFG registered ete1
[   22.420067] coresight ete1: CPU1: ete v1.0 initialized
[   22.420646] CSCFG registered ete2
[   22.420659] coresight ete2: CPU2: ete v1.0 initialized
[   22.421448] CSCFG registered ete3
[   22.421460] coresight ete3: CPU3: ete v1.0 initialized
[   22.422215] CSCFG registered ete4
[   22.422227] coresight ete4: CPU4: ete v1.0 initialized
[   22.422807] CSCFG registered ete5
[   22.422817] coresight ete5: CPU5: ete v1.0 initialized
[   22.424044] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.10.auto: Registered PMU @ 0x0000000011002000 using 4 counters with Global(Counter0) filter settings
[   22.424123] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.11.auto: option mask 0x0
[   22.424226] CSCFG registered ete6
[   22.424238] coresight ete6: CPU6: ete v1.0 initialized
[   22.425168] CSCFG registered ete7
[   22.425177] coresight ete7: CPU7: ete v1.0 initialized
[   22.425819] CSCFG registered ete8
[   22.425830] coresight ete8: CPU8: ete v1.0 initialized
[   22.426521] CSCFG registered ete9
[   22.426531] coresight ete9: CPU9: ete v1.0 initialized
[   22.427116] CSCFG registered ete10
[   22.427126] coresight ete10: CPU10: ete v1.0 initialized
[   22.427503] CSCFG registered ete11
[   22.427512] coresight ete11: CPU11: ete v1.0 initialized
[   22.428001] CSCFG registered ete12
[   22.428010] coresight ete12: CPU12: ete v1.0 initialized
[   22.428544] CSCFG registered ete13
[   22.428552] coresight ete13: CPU13: ete v1.0 initialized
[   22.429124] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.11.auto: Registered PMU @ 0x0000000011042000 using 4 counters with Global(Counter0) filter settings
[   22.429214] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.12.auto: option mask 0x0
[   22.429277] CSCFG registered ete14
[   22.429288] coresight ete14: CPU14: ete v1.0 initialized
[   22.429721] CSCFG registered ete15
[   22.429731] coresight ete15: CPU15: ete v1.0 initialized
[   22.430180] CSCFG registered ete16
[   22.430188] coresight ete16: CPU16: ete v1.0 initialized
[   22.430606] CSCFG registered ete17
[   22.430616] coresight ete17: CPU17: ete v1.0 initialized
[   22.431057] CSCFG registered ete18
[   22.431066] coresight ete18: CPU18: ete v1.0 initialized
[   22.431236] EXT4-fs (nvme0n1p2): Supports (experimental) DIO atomic writes awu_min: 4096, awu_max: 4096
[   22.431745] CSCFG registered ete19
[   22.431758] coresight ete19: CPU19: ete v1.0 initialized
[   22.432408] EXT4-fs (nvme0n1p2): mounted filesystem 696239a1-b79d-4739-9d9e-32405c28345f r/w with ordered data mode. Quota mode: none.
[   22.432693] CSCFG registered ete20
[   22.432702] coresight ete20: CPU20: ete v1.0 initialized
[   22.433280] CSCFG registered ete21
[   22.433288] coresight ete21: CPU21: ete v1.0 initialized
[   22.433745] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.12.auto: Registered PMU @ 0x0000000011062000 using 4 counters with Global(Counter0) filter settings
[   22.433775] CSCFG registered ete22
[   22.433788] coresight ete22: CPU22: ete v1.0 initialized
[   22.433821] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.13.auto: option mask 0x0
[   22.434285] CSCFG registered ete23
[   22.434295] coresight ete23: CPU23: ete v1.0 initialized
[   22.434735] CSCFG registered ete24
[   22.434745] coresight ete24: CPU24: ete v1.0 initialized
[   22.435176] CSCFG registered ete25
[   22.435185] coresight ete25: CPU25: ete v1.0 initialized
[   22.435643] CSCFG registered ete26
[   22.435654] coresight ete26: CPU26: ete v1.0 initialized
[   22.435656] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.13.auto: Registered PMU @ 0x0000000011082000 using 4 counters with Global(Counter0) filter settings
[   22.435724] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.14.auto: option mask 0x0
[   22.436138] CSCFG registered ete27
[   22.436147] coresight ete27: CPU27: ete v1.0 initialized
[   22.436514] CSCFG registered ete28
[   22.436524] coresight ete28: CPU28: ete v1.0 initialized
[   22.436831] CSCFG registered ete29
[   22.436840] coresight ete29: CPU29: ete v1.0 initialized
[   22.437226] CSCFG registered ete30
[   22.437234] coresight ete30: CPU30: ete v1.0 initialized
[   22.437628] CSCFG registered ete31
[   22.437636] coresight ete31: CPU31: ete v1.0 initialized
[   22.437795] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.14.auto: Registered PMU @ 0x00000000110a2000 using 4 counters with Global(Counter0) filter settings
[   22.437911] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.15.auto: option mask 0x0
[   22.438127] CSCFG registered ete32
[   22.438136] coresight ete32: CPU32: ete v1.0 initialized
[   22.438574] CSCFG registered ete33
[   22.438585] coresight ete33: CPU33: ete v1.0 initialized
[   22.438957] CSCFG registered ete34
[   22.438965] coresight ete34: CPU34: ete v1.0 initialized
[   22.439369] CSCFG registered ete35
[   22.439378] coresight ete35: CPU35: ete v1.0 initialized
[   22.439758] CSCFG registered ete36
[   22.439768] coresight ete36: CPU36: ete v1.0 initialized
[   22.440173] CSCFG registered ete37
[   22.440181] coresight ete37: CPU37: ete v1.0 initialized
[   22.440572] CSCFG registered ete38
[   22.440580] coresight ete38: CPU38: ete v1.0 initialized
[   22.440926] CSCFG registered ete39
[   22.440935] coresight ete39: CPU39: ete v1.0 initialized
[   22.441315] CSCFG registered ete40
[   22.441324] coresight ete40: CPU40: ete v1.0 initialized
[   22.441740] CSCFG registered ete41
[   22.441751] coresight ete41: CPU41: ete v1.0 initialized
[   22.442065] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.15.auto: Registered PMU @ 0x0000000012002000 using 4 counters with Global(Counter0) filter settings
[   22.442135] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.16.auto: option mask 0x0
[   22.442213] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.16.auto: Registered PMU @ 0x0000000012042000 using 4 counters with Global(Counter0) filter settings
[   22.442261] CSCFG registered ete42
[   22.442271] coresight ete42: CPU42: ete v1.0 initialized
[   22.442274] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.17.auto: option mask 0x0
[   22.442363] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.17.auto: Registered PMU @ 0x0000000012062000 using 4 counters with Global(Counter0) filter settings
[   22.442424] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.18.auto: option mask 0x0
[   22.442540] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.18.auto: Registered PMU @ 0x0000000012082000 using 4 counters with Global(Counter0) filter settings
[   22.442611] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.19.auto: option mask 0x0
[   22.442694] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.19.auto: Registered PMU @ 0x00000000120a2000 using 4 counters with Global(Counter0) filter settings
[   22.442744] CSCFG registered ete43
[   22.442752] coresight ete43: CPU43: ete v1.0 initialized
[   22.442788] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.20.auto: option mask 0x0
[   22.442965] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.20.auto: Registered PMU @ 0x0000000015002000 using 4 counters with Global(Counter0) filter settings
[   22.443024] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.21.auto: option mask 0x0
[   22.443124] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.21.auto: Registered PMU @ 0x0000000015042000 using 4 counters with Global(Counter0) filter settings
[   22.443195] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.22.auto: option mask 0x0
[   22.443274] CSCFG registered ete44
[   22.443284] coresight ete44: CPU44: ete v1.0 initialized
[   22.443285] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.22.auto: Registered PMU @ 0x0000000015062000 using 4 counters with Global(Counter0) filter settings
[   22.443351] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.23.auto: option mask 0x0
[   22.443511] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.23.auto: Registered PMU @ 0x0000000015082000 using 4 counters with Global(Counter0) filter settings
[   22.443578] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.24.auto: option mask 0x0
[   22.443675] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.24.auto: Registered PMU @ 0x00000000150a2000 using 4 counters with Global(Counter0) filter settings
[   22.443771] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.25.auto: option mask 0x0
[   22.443787] CSCFG registered ete45
[   22.443796] coresight ete45: CPU45: ete v1.0 initialized
[   22.443895] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.25.auto: Registered PMU @ 0x0000000016002000 using 4 counters with Global(Counter0) filter settings
[   22.443961] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.26.auto: option mask 0x0
[   22.444063] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.26.auto: Registered PMU @ 0x0000000016042000 using 4 counters with Global(Counter0) filter settings
[   22.444123] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.27.auto: option mask 0x0
[   22.444200] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.27.auto: Registered PMU @ 0x0000000016062000 using 4 counters with Global(Counter0) filter settings
[   22.444243] CSCFG registered ete46
[   22.444251] coresight ete46: CPU46: ete v1.0 initialized
[   22.444289] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.28.auto: option mask 0x0
[   22.444410] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.28.auto: Registered PMU @ 0x0000000005002000 using 4 counters with Global(Counter0) filter settings
[   22.444484] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.29.auto: option mask 0x0
[   22.444573] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.29.auto: Registered PMU @ 0x0000000005042000 using 4 counters with Global(Counter0) filter settings
[   22.444639] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.30.auto: option mask 0x0
[   22.444701] CSCFG registered ete47
[   22.444711] coresight ete47: CPU47: ete v1.0 initialized
[   22.444725] arm-smmu-v3-pmcg arm-smmu-v3-pmcg.30.auto: Registered PMU @ 0x0000000005062000 using 4 counters with Global(Counter0) filter settings
[   22.445148] CSCFG registered ete48
[   22.445159] coresight ete48: CPU48: ete v1.0 initialized
[   22.445541] CSCFG registered ete49
[   22.445550] coresight ete49: CPU49: ete v1.0 initialized
[   22.445967] CSCFG registered ete50
[   22.445976] coresight ete50: CPU50: ete v1.0 initialized
[   22.446409] CSCFG registered ete51
[   22.446418] coresight ete51: CPU51: ete v1.0 initialized
[   22.448916] CSCFG registered ete52
[   22.448931] coresight ete52: CPU52: ete v1.0 initialized
[   22.450965] CSCFG registered ete53
[   22.450976] coresight ete53: CPU53: ete v1.0 initialized
[   22.452034] CSCFG registered ete54
[   22.452045] coresight ete54: CPU54: ete v1.0 initialized
[   22.452761] CSCFG registered ete55
[   22.452772] coresight ete55: CPU55: ete v1.0 initialized
[   22.453691] CSCFG registered ete56
[   22.453702] coresight ete56: CPU56: ete v1.0 initialized
[   22.454506] CSCFG registered ete57
[   22.454516] coresight ete57: CPU57: ete v1.0 initialized
[   22.455405] CSCFG registered ete58
[   22.455416] coresight ete58: CPU58: ete v1.0 initialized
[   22.456280] CSCFG registered ete59
[   22.456290] coresight ete59: CPU59: ete v1.0 initialized
[   22.457233] CSCFG registered ete60
[   22.457244] coresight ete60: CPU60: ete v1.0 initialized
[   22.458031] CSCFG registered ete61
[   22.458041] coresight ete61: CPU61: ete v1.0 initialized
[   22.458942] CSCFG registered ete62
[   22.458954] coresight ete62: CPU62: ete v1.0 initialized
[   22.459835] CSCFG registered ete63
[   22.459846] coresight ete63: CPU63: ete v1.0 initialized
[   22.460844] CSCFG registered ete64
[   22.460856] coresight ete64: CPU64: ete v1.0 initialized
[   22.461771] CSCFG registered ete65
[   22.461783] coresight ete65: CPU65: ete v1.0 initialized
[   22.462686] CSCFG registered ete66
[   22.462699] coresight ete66: CPU66: ete v1.0 initialized
[   22.463604] CSCFG registered ete67
[   22.463614] coresight ete67: CPU67: ete v1.0 initialized
[   22.464533] CSCFG registered ete68
[   22.464543] coresight ete68: CPU68: ete v1.0 initialized
[   22.465401] CSCFG registered ete69
[   22.465412] coresight ete69: CPU69: ete v1.0 initialized
[   22.466278] CSCFG registered ete70
[   22.466290] coresight ete70: CPU70: ete v1.0 initialized
[   22.467074] CSCFG registered ete71
[   22.467084] coresight ete71: CPU71: ete v1.0 initialized
[   22.567370] FAT-fs (nvme0n1p1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[   22.678550] Adding 134191936k swap on /swapvol/swapfile.  Priority:10 extents:73 across:531378752k SS
[   22.738729] ipmi_ssif i2c-IPI0001:00: IPMI message handler: Found new BMC (man_id: 0x00a015, prod_id: 0x3146, dev_id: 0x20)
[   23.760978] kauditd_printk_skb: 72 callbacks suppressed
[   23.761003] audit: type=1305 audit(1752229694.266:58): op=set audit_enabled=1 old=1 auid=4294967295 ses=4294967295 res=1

Re: arm64: csdlock at early boot due to slow serial (?)

[Leo Yan]

On Fri, Jul 11, 2025 at 03:45:03AM -0700, Breno Leitao wrote:
> On Fri, Jul 11, 2025 at 10:50:23AM +0100, Leo Yan wrote:
> > > I've reverted commit 2eb2608618ce ("serial: amba-pl011: Implement nbcon
> > > console"), and I don't see the CSD locks anymoer. The serial speed is
> > > the same and continue to be slow, but, the CSD lock is not there. Here
> > > is the time spent on the serial flush when reverting the commit above
> > > 
> > > 	[    0.309561] printk: legacy console [ttyAMA0] enabled
> > > 	[    8.657938] ACPI: PCI Root Bridge [PCI2] (domain 0002 [bus 00-ff])
> > 
> > From this result, we can know both the atomic path and the thread path
> > take a long time polling.
>
> I am wondering if this slowdown is by design, or, if there is a bug
> somewhere.

Polling for over 5 seconds (5,001,000,000 ns) seems too long; it
should not be by design.

> > Since both paths configure the UART clock, I'm curious about the
> > behaviour if the UART clock is untouched. The relevant code is shown
> > below.
> 
> Is this the clock frequency that is connected to pl011 coming from AMBA?

The programming clock is for programming registers, my understanding is
the clock is not provided by bus.

> > I may seem a bit stubborn in suspecting a clock issue :) But if you
> > have confirmed that a standard pl011 UART IP is being used.
> 
> How do I double check this is a pl011 UART IP or if this is being
> emulated by firmware/ACPI.

The log shows:

  ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA

This should be emulated by firmware by reading Peripheral Identification
Registers (see [1]).

The most reliable way is to confirm with SoC vendor if the IP is
standard or includes any modification.

[1] https://developer.arm.com/documentation/ddi0183/g/programmers-model/register-descriptions/peripheral-identification-registers--uartperiphid0-3

> > diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
> > index 71482d639a6d..b04773ba2602 100644
> > --- a/drivers/amba/bus.c
> > +++ b/drivers/amba/bus.c
> >
> I've tested it, but, it seems it didnt' help much. here is the full log

[...]

> [    0.307809] ARMH0011:00: ttyAMA0 at MMIO 0xc280000 (irq = 66, base_baud = 0) is a SBSA
> [    0.307816] printk: console [ttyAMA0] enabled

Based on this log and followed OOPS, the issue happens just after
enabling console. It is a bit tricky that it prints logs during
console registration (and configuration).

Seems to me, it is good to check pl011_console_setup() or
sbsa_uart_set_termios() has any impaction on the long waiting. For
example, the flow below will configure pin control and which might
impact the data transaction:

  pl011_console_setup()
   `> pinctrl_pm_select_default_state()

Based on the information shared earlier, the UART FIFO appears to be
stalled, which is causing the long wait times.

Apologies if my suggestion was unreliable or misled anything, and
welcome others to freely correct me.

Thanks,
Leo

> [    5.414515] smp: csd: Detected non-responsive CSD lock (#1) on CPU#0, waiting 5001000000 ns for CPU#01 do_nothing+0x0/0x10(0x0).
> [    5.414532] smp: 	csd: CSD lock (#1) unresponsive.
> [    5.414535] Sending NMI from CPU 0 to CPUs 1:
> [    5.414541] NMI backtrace for cpu 1
> [    5.414545] CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.16.0-rc5-00056-gd7753fd13f9e #86 NONE 
> [    5.414548] Hardware name: Quanta JAVA ISLAND PVT 29F0EMAZ049/Java Island, BIOS F0EJ3A13 06/04/2025
> [    5.414550] pstate: 61400009 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
> [    5.414552] pc : pl011_console_write_atomic+0x94/0x170
> [    5.414559] lr : pl011_console_write_atomic+0x84/0x170
> [    5.414562] sp : ffff80008492f1a0
> [    5.414564] pmr: 000000c0
> [    5.414565] x29: ffff80008492f1a0 x28: 0000000000000000 x27: 00000000000000e0
> [    5.414572] x26: 0000000000000190 x25: 0000000000000000 x24: 0000000000000000
> [    5.414578] x23: 0000000000000001 x22: 0000000000000000 x21: ffff800080c38ea8
> [    5.414584] x20: ffff80008492f288 x19: ffff0000b2060080 x18: 00000000ffffffff
> [    5.414590] x17: 6362323230303030 x16: 3030303078303a30 x15: 206e6f6967657220
> [    5.414595] x14: 3030303064322072 x13: 3030303063623232 x12: 3030303030303030
> [    5.414601] x11: 78303a30206e6f69 x10: 6765722030303030 x9 : ffff800080c390e4
> [    5.414607] x8 : 6964657220646e75 x7 : 205d313533383630 x6 : 302e30202020205b
> [    5.414612] x5 : ffff0000ad10200f x4 : 0000000000000000 x3 : 0000000000000008
> [    5.414618] x2 : ffff8000816336c0 x1 : 0000000000000018 x0 : 0000000000000018
> [    5.414624] Call trace:
> [    5.414626]  pl011_console_write_atomic+0x94/0x170 (P)
> [    5.414630]  nbcon_emit_next_record+0x234/0x388
> [    5.414634]  __nbcon_atomic_flush_pending_con+0x88/0x108
> [    5.414637]  __nbcon_atomic_flush_pending+0x108/0x198
> [    5.414640]  nbcon_atomic_flush_pending+0x24/0x38
> [    5.414643]  vprintk_emit+0x200/0x348
> [    5.414645]  vprintk_default+0x3c/0x50
> [    5.414647]  vprintk+0x2c/0x40
> [    5.414650]  _printk+0x50/0x60
> [    5.414652]  register_console+0x424/0x560
> [    5.414654]  serial_core_register_port+0x878/0x898
> [    5.414659]  serial_ctrl_register_port+0x14/0x28
> [    5.414661]  uart_add_one_port+0x14/0x28
> [    5.414664]  pl011_register_port+0x74/0x130
> [    5.414667]  sbsa_uart_probe+0x164/0x1b8
> [    5.414670]  platform_probe+0x8c/0x100
> [    5.414674]  really_probe+0xc4/0x398
> [    5.414676]  __driver_probe_device+0x80/0x1a8
> [    5.414679]  driver_probe_device+0x44/0x120
> [    5.414681]  __device_attach_driver+0xb8/0x158
> [    5.414683]  bus_for_each_drv+0x74/0xc0
> [    5.414685]  __device_attach+0xac/0x1e0
> [    5.414687]  device_initial_probe+0x18/0x28
> [    5.414690]  bus_probe_device+0xa8/0xb8
> [    5.414692]  device_add+0x648/0x830
> [    5.414697]  platform_device_add+0x114/0x280
> [    5.414700]  platform_device_register_full+0x148/0x1b8
> [    5.414702]  acpi_create_platform_device+0x264/0x388
> [    5.414706]  acpi_bus_attach+0x2c8/0x2e8
> [    5.414709]  acpi_dev_for_one_check+0x38/0x48
> [    5.414711]  device_for_each_child+0x54/0xa0
> [    5.414714]  acpi_dev_for_each_child+0x30/0x40
> [    5.414716]  acpi_bus_attach+0x6c/0x2e8
> [    5.414718]  acpi_dev_for_one_check+0x38/0x48
> [    5.414720]  device_for_each_child+0x54/0xa0
> [    5.414723]  acpi_dev_for_each_child+0x30/0x40
> [    5.414725]  acpi_bus_attach+0x6c/0x2e8
> [    5.414727]  acpi_bus_scan+0x5c/0x1b0
> [    5.414730]  acpi_scan_init+0xa0/0x288
> [    5.414737]  acpi_init+0x1e8/0x4b8
> [    5.414740]  do_one_initcall+0x3c/0x2a0
> [    5.414743]  kernel_init_freeable+0x22c/0x460
> [    5.414746]  kernel_init+0x28/0x1f0
> [    5.414750]  ret_from_fork+0x10/0x20

Re: arm64: csdlock at early boot due to slow serial (?)

[Nirmoy Das]

Hi Breno,

I tried the latest kernel which seems to contain a fix. Bisecting it led me to https://patch.msgid.link/20250604142045.253301-1-pmladek@suse.com and that indeed fixes it for me.
Could you please give it a try.

Regards,
Nirmoy

Re: arm64: csdlock at early boot due to slow serial (?)

[Breno Leitao]

Hello Nirmoy,

On Wed, Aug 06, 2025 at 04:44:41AM -0700, Nirmoy Das wrote:
> Hi Breno,
> 
> I tried the latest kernel which seems to contain a fix. Bisecting it led me to https://patch.msgid.link/20250604142045.253301-1-pmladek@suse.com and that indeed fixes it for me.
> Could you please give it a try.

That is awesome. I've played a little bit with it, and I see it solving
my problem as well.

The machine is booting very fast now, taking 0.8 seconds to hit init.

	[    0.811320] Run /init as init process

Thanks for the heads-up!
--breno