Re: [PULL 00/29] KVM/ARM Changes for v4.7

[Shanker Donthineni <shankerd@codeaurora.org>]

Hi Itaru,

I have tested kvmram patches (v4.6 and next-20160513) with ACPI/DTB
firmware on Qualcomm platforms without any issue.

Seems this problem could be related to memory region attributes and
typethat contains runtime service code/data and EFI system table.

Make sure EFI system table marked as runtime service with right arrtinutes.

On 05/16/2016 02:19 AM, Christoffer Dall wrote:
> Hi Itaru,
>
> I'm afraid I don't know would be causing this nor do I have an easy
> way to reproduce.
>
> I suggest you try with v4.6 which was just released, and if it still
> doesn't work, report it as a bug on linux-arm-kernel.
>
> Thanks,
> -Christoffer
>
> On Sun, May 15, 2016 at 3:30 PM, Itaru Kitayama <itaru.kitayama@riken.jp>
> wrote:
>> Julien, Christoffer,
>>
>> Below is the boot log of linux-next.
>>
>>
>> EFI stub: Booting Linux Kernel...
>> EFI stub: Using DTB from configuration table
>> EFI stub: Exiting boot services and installing virtual address map...
>> L3C: 8MB
>> Booting Linux on physical CPU 0x0
>> Linux version 4.6.0-rc7-next-20160513 (itaru.kitayama@r2-a11) (gcc
> version
>> 5.3.1 20160406 (Red Hat 5.3.1-6) (GCC) ) #6 SMP PREEMPT Sun May 15
> 08:21:01
>> CDT 2016
>> Boot CPU: AArch64 Processor [500f0000]
>> earlycon: uart0 at MMIO32 0x000000001c020000 (options '')
>> bootconsole [uart0] enabled
>> efi: Getting EFI parameters from FDT:
>> efi: EFI v2.40 by X-Gene Mustang Board EFI Jan 27 2016 18:27:58
>> efi:  ACPI=0x43fa859000  ACPI 2.0=0x43fa859014  SMBIOS 3.0=0x43fa857000
>> cma: Reserved 512 MiB at 0x00000040e0000000
>> ACPI: Early table checksum verification enabled
>> ACPI: RSDP 0x00000043FA859014 000024 (v02 APM   )
>> ACPI: XSDT 0x00000043FA8580E8 00007C (v01 APM    XGENE    00000003
> 01000013)
>> ACPI: FACP 0x00000043FA850000 00010C (v05 APM    XGENE    00000003 INTL
>> 20140724)
>> ACPI: DSDT 0x00000043FA851000 003A00 (v05 APM    APM88xxx 00000001 INTL
>> 20140724)
>> ACPI: DBG2 0x00000043FA855000 0000AA (v00 APMC0D XGENEDBG 00000000 INTL
>> 20140724)
>> ACPI: GTDT 0x00000043FA84E000 0000E0 (v02 APM    XGENE    00000001 INTL
>> 20140724)
>> ACPI: MCFG 0x00000043FA84D000 00003C (v01 APM    XGENE    00000002 INTL
>> 20140724)
>> ACPI: SPCR 0x00000043FA84C000 000050 (v02 APMC0D XGENESPC 00000000 INTL
>> 20140724)
>> ACPI: SSDT 0x00000043FA84B000 00002D (v02 APM    XGENE    00000001 INTL
>> 20140724)
>> ACPI: BERT 0x00000043FA84A000 000030 (v01 APM    XGENE    00000002 INTL
>> 20140724)
>> ACPI: HEST 0x00000043FA849000 0002A8 (v01 APM    XGENE    00000002 INTL
>> 20140724)
>> ACPI: APIC 0x00000043FA848000 0002A4 (v03 APM    XGENE    00000003
> 01000013)
>> ACPI: SSDT 0x00000043FA847000 000063 (v02 REDHAT MACADDRS 00000001
> 01000013)
>> ACPI: SSDT 0x00000043FA846000 000032 (v02 REDHAT UARTCLKS 00000001
> 01000013)
>> On node 0 totalpages: 262144
>>   DMA zone: 64 pages used for memmap
>>   DMA zone: 0 pages reserved
>>   DMA zone: 65536 pages, LIFO batch:1
>>   Normal zone: 192 pages used for memmap
>>   Normal zone: 196608 pages, LIFO batch:1
>> psci: is not implemented in ACPI.
>> percpu: Embedded 3 pages/cpu @ffff8003ffde0000 s110208 r8192 d78208
> u196608
>> pcpu-alloc: s110208 r8192 d78208 u196608 alloc=3*65536
>> pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3 [0] 4 [0] 5 [0] 6 [0] 7
>> Detected PIPT I-cache on CPU0
>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
> 261888
>> Kernel command line: BOOT_IMAGE=/vmlinuz-4.6.0-rc7-next-20160513
>> root=UUID=ac9f9264-7572-48c3-97d2-042ea95f7640 ro acpi=force
>> acpi_force_table_verification earlycon=uart,mmio32,0x1c020000
>> console=ttyS0,115200 loglevel=8 LANG=en_US.UTF-8
>> log_buf_len individual max cpu contribution: 4096 bytes
>> log_buf_len total cpu_extra contributions: 28672 bytes
>> log_buf_len min size: 16384 bytes
>> log_buf_len: 65536 bytes
>> early log buf free: 13072(79%)
>> PID hash table entries: 4096 (order: -1, 32768 bytes)
>> Dentry cache hash table entries: 2097152 (order: 8, 16777216 bytes)
>> Inode-cache hash table entries: 1048576 (order: 7, 8388608 bytes)
>> software IO TLB [mem 0x40dbff0000-0x40dfff0000] (64MB) mapped at
>> [ffff8000dbff0000-ffff8000dffeffff]
>> Memory: 16070272K/16777216K available (22780K kernel code, 8781K rwdata,
>> 7680K rodata, 1920K init, 16628K bss, 182656K reserved, 524288K
>> cma-reserved)
>> Virtual kernel memory layout:
>>     modules : 0xffff000000000000 - 0xffff000008000000   (   128 MB)
>>     vmalloc : 0xffff000008000000 - 0xffff7bdfffff0000   (126847 GB)
>>       .text : 0xffff000008080000 - 0xffff0000096b0000   ( 22720 KB)
>>     .rodata : 0xffff0000096b0000 - 0xffff000009e40000   (  7744 KB)
>>       .init : 0xffff000009e40000 - 0xffff00000a020000   (  1920 KB)
>>       .data : 0xffff00000a020000 - 0xffff00000a8b3600   (  8782 KB)
>>        .bss : 0xffff00000a8b3600 - 0xffff00000b8f0760   ( 16629 KB)
>>     fixed   : 0xffff7fdffe7d0000 - 0xffff7fdffec00000   (  4288 KB)
>>     PCI I/O : 0xffff7fdffee00000 - 0xffff7fdfffe00000   (    16 MB)
>>     vmemmap : 0xffff7fe000000000 - 0xffff800000000000   (   128 GB
> maximum)
>>               0xffff7fe000000000 - 0xffff7fe001000000   (    16 MB
> actual)
>>     memory  : 0xffff800000000000 - 0xffff800400000000   ( 16384 MB)
>> SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=8, Nodes=1
>> Preemptible hierarchical RCU implementation.
>>         Build-time adjustment of leaf fanout to 64.
>> NR_IRQS:64 nr_irqs:64 0
>> GIC: Using split EOI/Deactivate mode
>> GICv3: No distributor detected at @ffff000008060000, giving up
>> Architected cp15 timer(s) running at 50.00MHz (phys).
>> clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles:
>> 0xb8812736b, max_idle_ns: 440795202655 ns
>> sched_clock: 56 bits at 50MHz, resolution 20ns, wraps every
> 4398046511100ns
>> Console: colour dummy device 80x25
>> Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
>> ... MAX_LOCKDEP_SUBCLASSES:  8
>> ... MAX_LOCK_DEPTH:          48
>> ... MAX_LOCKDEP_KEYS:        8191
>> ... CLASSHASH_SIZE:          4096
>> ... MAX_LOCKDEP_ENTRIES:     32768
>> ... MAX_LOCKDEP_CHAINS:      65536
>> ... CHAINHASH_SIZE:          32768
>>  memory used by lock dependency info: 8127 kB
>>  per task-struct memory footprint: 1920 bytes
>> Calibrating delay loop (skipped), value calculated using timer
> frequency..
>> 100.00 BogoMIPS (lpj=200000)
>> pid_max: default: 32768 minimum: 301
>> ACPI: Core revision 20160422
>> Security Framework initialized
>> Mount-cache hash table entries: 32768 (order: 2, 262144 bytes)
>> Mountpoint-cache hash table entries: 32768 (order: 2, 262144 bytes)
>> ftrace: allocating 29581 entries in 8 pages
>> ASID allocator initialised with 65536 entries
>> Remapping and enabling EFI services.
>>   EFI remap 0x0000000010510000 => 0000000020000000
>>   EFI remap 0x0000000010548000 => 0000000020018000
>>   EFI remap 0x0000000017000000 => 0000000020020000
>>   EFI remap 0x000000001c025000 => 0000000020035000
>>   EFI remap 0x000000007c0c0000 => 0000000020040000
>>   EFI remap 0x000000007c1c0000 => 0000000020050000
>>   EFI remap 0x000000007c2c0000 => 0000000020060000
>>   EFI remap 0x000000007c3c0000 => 0000000020070000
>>   EFI remap 0x000000007c4c0000 => 0000000020080000
>>   EFI remap 0x000000007c5c0000 => 0000000020090000
>>   EFI remap 0x000000007c6c0000 => 00000000200a0000
>>   EFI remap 0x000000007c7c0000 => 00000000200b0000
>> UEFI Runtime regions are not aligned to 64 KB -- buggy firmware?
>> ------------[ cut here ]------------
>> WARNING: CPU: 0 PID: 1 at arch/arm64/kernel/efi.c:34
>> efi_create_mapping+0x1a0/0x3b8
>> Modules linked in:
>>
>> CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc7-next-20160513 #6
>> Hardware name: APM X-Gene Mustang board (DT)
>> task: ffff8003c0340000 ti: ffff8003c0400000 task.ti: ffff8003c0400000
>> PC is at efi_create_mapping+0x1a0/0x3b8
>> LR is at efi_create_mapping+0x194/0x3b8
>> pc : [<ffff000009e4a5a8>] lr : [<ffff000009e4a59c>] pstate: 60000245
>> sp : ffff8003c0403cb0
>> x29: ffff8003c0403cb0 x28: ffff00000a390000
>> x27: ffff8003f9a77468 x26: 0000000000003000
>> x25: 800000000000000f x24: ffff00000a2de390
>> x23: 0000000000000005 x22: 0000000000000001
>> x21: ffff00000a41d000 x20: ffff00000a8fc000
>> x19: ffff00000a8fc198 x18: ffff0000097fe000
>> x17: 0000000000000001 x16: 0000000000000000
>> x15: 0000000000000056 x14: 3f657261776d7269
>> x13: ffff00000a464f28 x12: ffff00000a465b30
>> x11: 0000000000000001 x10: ffff8003c0400000
>> x9 : 00000000000085f1 x8 : 0000000000000003
>> x7 : 0000000000000000 x6 : ffff00000a042000
>> x5 : ffff00000b3b4c58 x4 : 00000000001c115c
>> x3 : ffff8003c0340000 x2 : 0000000000000132
>> x1 : 0000000000000099 x0 : 0000000000000001
>>
>> ---[ end trace a2cb2e24ff35d5f8 ]---
>> Call trace:
>> Exception stack(0xffff8003c0403ac0 to 0xffff8003c0403be0)
>> 3ac0: ffff00000a8fc198 ffff00000a8fc000 ffff8003c0403cb0
> ffff000009e4a5a8
>> 3ae0: 0000000060000245 000000000000003d 800000000000000f
> 0000000000003000
>> 3b00: ffff8003f9a77468 0000000000000001 0000000000000005
> ffff00000a2de390
>> 3b20: 800000000000000f 0000000000003000 ffff8003f9a77468
> ffff00000a390000
>> 3b40: ffff00000a465ab8 0000000000000000 ffff8003c0403bd0
> ffff000009cdcf70
>> 3b60: 000000000b3071a8 0000000000000000 ffff000000000000
> 00000000ffffffff
>> 3b80: ffff8003c0403cb0 ffff8003c0403cb0 0000000000000001
> 0000000000000099
>> 3ba0: 0000000000000132 ffff8003c0340000 00000000001c115c
> ffff00000b3b4c58
>> 3bc0: ffff00000a042000 0000000000000000 0000000000000003
> 00000000000085f1
>> [<ffff000009e4a5a8>] efi_create_mapping+0x1a0/0x3b8
>> [<ffff000009ee82b0>] arm_enable_runtime_services+0x26c/0x57c
>> [<ffff00000808366c>] do_one_initcall+0xac/0x360
>> [<ffff000009e41d10>] kernel_init_freeable+0xd4/0x4a8
>> [<ffff0000096772bc>] kernel_init+0x3c/0x368
>> [<ffff000008088e10>] ret_from_fork+0x10/0x40
>>   EFI remap 0x00000043fa813000 => 00000000200c3000
>>   EFI remap 0x00000043fa85a000 => 00000000200da000
>>   EFI remap 0x00000043ffa02000 => 00000000202c2000
>>   EFI remap 0x00000043ffa16000 => 00000000202d6000
>> Detected PIPT I-cache on CPU1
>> CPU1: Booted secondary processor [500f0000]
>> Detected PIPT I-cache on CPU2
>> CPU2: Booted secondary processor [500f0000]
>> Detected PIPT I-cache on CPU3
>> CPU3: Booted secondary processor [500f0000]
>> Detected PIPT I-cache on CPU4
>> CPU4: Booted secondary processor [500f0000]
>> Detected PIPT I-cache on CPU5
>> CPU5: Booted secondary processor [500f0000]
>> Detected PIPT I-cache on CPU6
>> CPU6: Booted secondary processor [500f0000]
>> Detected PIPT I-cache on CPU7
>> CPU7: Booted secondary processor [500f0000]
>> Brought up 8 CPUs
>> SMP: Total of 8 processors activated.
>> CPU features: detected feature: 32-bit EL0 Support
>> CPU: All CPU(s) started at EL2
>> devtmpfs: initialized
>> gcov: version magic: 0x35303352
>> SMBIOS 3.0.0 present.
>> clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff,
> max_idle_ns:
>> 7645041785100000 ns
>> pinctrl core: initialized pinctrl subsystem
>> NET: Registered protocol family 16
>> PCCT header not found.
>> vdso: 2 pages (1 code @ ffff0000096d0000, 1 data @ ffff00000a030000)
>> hw-breakpoint: found 4 breakpoint and 4 watchpoint registers.
>> DMA: preallocated 256 KiB pool for atomic allocations
>> ACPI: bus type PCI registered
>> Serial: AMBA PL011 UART driver
>> HugeTLB registered 512 MB page size, pre-allocated 0 pages
>> ACPI: Added _OSI(Module Device)
>> ACPI: Added _OSI(Processor Device)
>> ACPI: Added _OSI(3.0 _SCP Extensions)
>> ACPI: Added _OSI(Processor Aggregator Device)
>> ACPI: 4 ACPI AML tables successfully acquired and loaded
>>
>> ACPI: Interpreter enabled
>> ACPI: Using GIC for interrupt routing
>> ACPI: Power Resource [SCVR] (off)
>> ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-ff])
>> acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments
>> MSI]
>> acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER
> PCIeCapability]
>> acpi PNP0A08:00: Bus 0000:00 not present in PCI namespace
>> vgaarb: loaded
>> SCSI subsystem initialized
>> libata version 3.00 loaded.
>> ACPI: bus type USB registered
>> usbcore: registered new interface driver usbfs
>> usbcore: registered new interface driver hub
>> usbcore: registered new device driver usb
>> pps_core: LinuxPPS API ver. 1 registered
>> pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti
>> <giometti@linux.it>
>> PTP clock support registered
>> Advanced Linux Sound Architecture Driver Initialized.
>> clocksource: Switched to clocksource arch_sys_counter
>> Warning: could not register all branches stats
>> Warning: could not register annotated branches stats
>> VFS: Disk quotas dquot_6.6.0
>> VFS: Dquot-cache hash table entries: 8192 (order 0, 65536 bytes)
>> pnp: PnP ACPI init
>> pnp: PnP ACPI: found 0 devices
>> NET: Registered protocol family 2
>> TCP established hash table entries: 131072 (order: 4, 1048576 bytes)
>> TCP bind hash table entries: 65536 (order: 6, 4194304 bytes)
>> TCP: Hash tables configured (established 131072 bind 65536)
>> UDP hash table entries: 8192 (order: 4, 1310720 bytes)
>> UDP-Lite hash table entries: 8192 (order: 4, 1310720 bytes)
>> NET: Registered protocol family 1
>> RPC: Registered named UNIX socket transport module.
>> RPC: Registered udp transport module.
>> RPC: Registered tcp transport module.
>> RPC: Registered tcp NFSv4.1 backchannel transport module.
>> PCI: CLS 0 bytes, default 128
>> Unpacking initramfs...
>> Freeing initrd memory: 10432K (ffff8003f9a80000 - ffff8003fa4b0000)
>> kvm [1]: 8-bit VMID
>> kvm [1]: Hyp mode initialized successfully
>> INFO: rcu_preempt detected stalls on CPUs/tasks:
>>         0-...: (113 GPs behind) idle=1f9/1/0 softirq=86/86 fqs=0
>>         2-...: (107 GPs behind) idle=559/1/0 softirq=120/120 fqs=0
>>         4-...: (107 GPs behind) idle=33b/1/0 softirq=106/106 fqs=0
>>         5-...: (108 GPs behind) idle=333/1/0 softirq=130/130 fqs=0
>>         6-...: (105 GPs behind) idle=2f7/1/0 softirq=120/120 fqs=0
>>         7-...: (105 GPs behind) idle=327/1/0 softirq=131/131 fqs=0
>>         (detected by 1, t=5252 jiffies, g=-135, c=-136, q=8)
>> Task dump for CPU 0:
>> swapper/0       R  running task        0     0      0 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<ffff00000a6276b8>] ______f.8076+0x10/0x28
>> Task dump for CPU 2:
>> swapper/2       R  running task        0     0      1 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<000000000006a42a>] 0x6a42a
>> Task dump for CPU 4:
>> swapper/4       R  running task        0     0      1 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<0000000000048555>] 0x48555
>> Task dump for CPU 5:
>> swapper/5       R  running task        0     0      1 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<0000000000048554>] 0x48554
>> Task dump for CPU 6:
>> swapper/6       R  running task        0     0      1 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<000000000004855b>] 0x4855b
>> Task dump for CPU 7:
>> swapper/7       R  running task        0     0      1 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<000000000004855a>] 0x4855a
>> rcu_preempt kthread starved for 5252 jiffies! g18446744073709551481
>> c18446744073709551480 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
>> rcu_preempt     S ffff00000808ba20     0     7      2 0x00000000
>> Call trace:
>> [<ffff00000808ba20>] __switch_to+0x1c8/0x240
>> [<ffff00000967cfa8>] __schedule+0xb68/0x2558
>> [<ffff00000967f57c>] schedule+0xc4/0x230
>> [<ffff00000968d130>] schedule_timeout+0x430/0x858
>> [<ffff00000825dd50>] rcu_gp_kthread+0x1138/0x1ed0
>> [<ffff000008190744>] kthread+0x1cc/0x1e0
>> [<ffff000008088e10>] ret_from_fork+0x10/0x40
>> NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [swapper/0:1]
>> Modules linked in:
>>
>> CPU: 1 PID: 1 Comm: swapper/0 Tainted: G        W
> 4.6.0-rc7-next-20160513 #6
>> Hardware name: AppliedMicro Mustang/Mustang, BIOS 3.05.05-beta_rc Jan 27
>> 2016
>> task: ffff8003c0340000 ti: ffff8003c0400000 task.ti: ffff8003c0400000
>> PC is at smp_call_function_many+0x780/0x7b0
>> LR is at smp_call_function_many+0x73c/0x7b0
>> pc : [<ffff0000082b6390>] lr : [<ffff0000082b634c>] pstate: 80000045
>> sp : ffff8003c0403b50
>> x29: ffff8003c0403b50 x28: ffff00000a482540
>> x27: ffff00000a482550 x26: ffff000009ffa000
>> x25: ffff00000b34e7c0 x24: ffff00000a041dd0
>> x23: ffff00000b34e7c0 x22: ffff8003ffe2aa08
>> x21: ffff00000b34e7c0 x20: ffff8003ffe2aa00
>> x19: ffff00000b34e240 x18: 0000000005f5e0ff
>> x17: 0000000000000000 x16: 0000000000000000
>> x15: 00000000000000c4 x14: ffff8003fff79500
>> x13: ffff00000a464f28 x12: ffff00000b59cd10
>> x11: 0000000000000000 x10: ffff00000a62eef8
>> x9 : ffff00000b59ccd0 x8 : ffff8003c0400000
>> x7 : 0000000000000000 x6 : ffff00000b59ccd0
>> x5 : ffffffffffffffff x4 : 0000000000000000
>> x3 : ffff8003ffdfdc18 x2 : 0000000000000000
>> x1 : ffff00000a043548 x0 : 0000000000000003
>>
>> Kernel panic - not syncing: softlockup: hung tasks
>> CPU: 1 PID: 1 Comm: swapper/0 Tainted: G        W    L
>> 4.6.0-rc7-next-20160513 #6
>> Hardware name: AppliedMicro Mustang/Mustang, BIOS 3.05.05-beta_rc Jan 27
>> 2016
>> Call trace:
>> [<ffff000008095bb0>] dump_backtrace+0x0/0x4b0
>> [<ffff00000809609c>] show_stack+0x3c/0x60
>> [<ffff000008a8f05c>] dump_stack+0x1dc/0x2c8
>> [<ffff0000083fd494>] panic+0x264/0x5fc
>> [<ffff00000831b914>] watchdog_timer_fn+0x804/0x840
>> [<ffff000008274044>] __hrtimer_run_queues+0x4b4/0xf50
>> [<ffff000008276864>] hrtimer_interrupt+0x174/0x478
>> [<ffff000009289e94>] arch_timer_handler_phys+0xac/0xc8
>> [<ffff00000823e4c4>] handle_percpu_devid_irq+0x214/0x8b0
>> [<ffff00000822f6a4>] generic_handle_irq+0x8c/0xb0
>> [<ffff00000822ff20>] __handle_domain_irq+0x178/0x288
>> [<ffff000008081e40>] gic_handle_irq+0x1e8/0x270
>> Exception stack(0xffff8003ffe13fa0 to 0xffff8003ffe140c0)
>> 3fa0: ffff8003c0403a30 ffff8003ffe2aa00 ffff8003c0403b50
> ffff0000082b6390
>> 3fc0: 0000000080000045 ffff00000a041dd0 ffff8003ffe10020
> ffff8003ffe14010
>> 3fe0: ffff00000a482550 ffff8003c0400000 ffff00000800f000
> ffff8003c0403a30
>> 4000: ffff8003c0403b50 ffff8003c0403a30 0000000000000000
> 0000000000000000
>> 4020: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
>> 4040: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
>> 4060: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
>> 4080: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
>> 40a0: 0000000000000000 0000000000000000 0000000000000000
> 0000000000000000
>> [<ffff000008088724>] el1_irq+0xa4/0x114
>> [<ffff0000082b6390>] smp_call_function_many+0x780/0x7b0
>> [<ffff0000082b6714>] smp_call_function+0x7c/0x1c8
>> [<ffff0000082b693c>] on_each_cpu+0x74/0x280
>> [<ffff0000080e9528>] kvm_arch_init+0x8c0/0xe60
>> [<ffff0000080ccb60>] kvm_init+0x58/0x740
>> [<ffff0000080e3e48>] arm_init+0x40/0x58
>> [<ffff00000808366c>] do_one_initcall+0xac/0x360
>> [<ffff000009e41ee8>] kernel_init_freeable+0x2ac/0x4a8
>> [<ffff0000096772bc>] kernel_init+0x3c/0x368
>> [<ffff000008088e10>] ret_from_fork+0x10/0x40
>> SMP: stopping secondary CPUs
>> SMP: failed to stop secondary CPUs 0-7
>> Kernel Offset: disabled
>> Memory Limit: none
>> ---[ end Kernel panic - not syncing: softlockup: hung tasks
>>
>>
>> On 5/15/16 8:42 PM, Julien Grall wrote:
>>> Hello,
>>>
>>> On 15/05/2016 12:19, Christoffer Dall wrote:
>>>> On Sunday, May 15, 2016, Itaru Kitayama <itaru.kitayama@riken.jp
>>>> <mailto:itaru.kitayama@riken.jp>> wrote:
>>>>>
>>>>> Below is the boot (with UEFI) log. I'm attaching the .config I'm
> using.
>>>>> I've been trying to test Julien's ACPI support patch set recently
>>>> merged in the kvmarm tree on Mustang.
>>>>
>>>>
>>>> I don't run anything with ACPI, so haven't tested that particular
> aspect.
>>>> This doesn't immediately look like it's related to the kvmarm patches.
>>>>
>>>> Perhaps you could try with Linux-next as well to see if this was
> already
>>>> fixed?
>>>>
>>>> Julien, did you test mustang with your ACPI patches?
>>>
>>> No, the patch has been tested on Juno-r2 and Seattle.
>>>
>>> However, the logs looks very similar to a bug that Steve Capper was
>>> hunting in Linux 4.6.0-rc3. I believe this has been fixed in a later
> RC.
>>> kvm-arm-for-4.7 seems to be based on Linux 4.6-rc1 so I would recommend
>>> you to try Linux-next.
>>>
>>> Regards,
>>>
> _______________________________________________
> kvmarm mailing list
> kvmarm@lists.cs.columbia.edu
> https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

-- 
Shanker Donthineni
Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project