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Message-ID: <1a143d949dc333666374cf14fae4496045f77db4.camel@redhat.com>
Date: Thu, 14 Jul 2022 12:50:10 +0300
From: Maxim Levitsky <mlevitsk@...hat.com>
To: Naresh Kamboju <naresh.kamboju@...aro.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
kvm list <kvm@...r.kernel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org,
lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com,
f.fainelli@...il.com, sudipm.mukherjee@...il.com,
slade@...dewatkins.com, Sean Christopherson <seanjc@...gle.com>,
Paolo Bonzini <pbonzini@...hat.com>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
Dave Hansen <dave.hansen@...ux.intel.com>,
X86 ML <x86@...nel.org>, "H. Peter Anvin" <hpa@...or.com>,
Alex Bennée <alex.bennee@...aro.org>,
Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH 5.15 00/78] 5.15.55-rc1 review
On Wed, 2022-07-13 at 18:22 +0530, Naresh Kamboju wrote:
> On Wed, 13 Jul 2022 at 00:17, Greg Kroah-Hartman
> <gregkh@...uxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 5.15.55 release.
> > There are 78 patches in this series, all will be posted as a response
> > to this one. If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Thu, 14 Jul 2022 18:32:19 +0000.
> > Anything received after that time might be too late.
> >
> > The whole patch series can be found in one patch at:
> > https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.55-rc1.gz
> > or in the git tree and branch at:
> > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
>
> Results from Linaro’s test farm.
> Regressions on x86_64.
>
> Reported-by: Linux Kernel Functional Testing <lkft@...aro.org>
>
> 1) Kernel panic noticed on device x86_6 while running kvm-unit-tests.
> - APIC base relocation is unsupported by KVM
My 0.2 cent:
APIC base relocation warning is harmless, and I removed it 5.19 kernel:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.19-rc6&id=3743c2f0251743b8ae968329708bbbeefff244cf
The 'emulating exchange as write' is also something that KVM unit tests trigger
normally although this warning recently did signal a real and very nasty bug, which I fixed in this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.19-rc6&id=33fbe6befa622c082f7d417896832856814bdde0
FYI, Another 'pr_info_ratelimited' message from KVM that you will see when running the unit tests is this
"kvm: vcpu 0: requested 2000 ns lapic timer period limited to 200000 ns"
It is also harmless, but I do wonder how much value it adds.
And the panic I guess was already figured out.
BTW, there is a script in the kernel source, called decode_stacktrace
(./scripts/decode_stacktrace.sh)
It is very useful to figure out, on which source line the panic/oops
was triggered, you might want to consider using it in the report.
(I do wish the kernel had a debug option, of 'I don't care about kernel addresses/info leaks',
please print all the info you can in the stacktrace).
Best regards,
Maxim Levitsky
>
> 2) while booting qemu-x86_64 the following warning noticed.
> - WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:557
> apply_returns+0x19c/0x1d0
>
> kernel panic log:
> - https://lkft.validation.linaro.org/scheduler/job/5278112#L1703
> TESTNAME=emulator TIMEOUT=90s ACCEL= ./x86/run x86/emulator.flat -smp 1
> [ 67.774572] APIC base relocation is unsupported by KVM
> [ 105.643057] kvm: emulating exchange as write
> [ 105.653717] int3: 0000 [#1] SMP PTI
> [ 105.653720] CPU: 3 PID: 3747 Comm: qemu-system-x86 Not tainted 5.15.55-rc1 #1
> [ 105.653721] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
> 2.0b 07/27/2017
> [ 105.653722] RIP: 0010:xaddw_ax_dx+0x9/0x10
> [ 105.653727] Code: 00 0f bb d0 c3 cc cc cc cc 48 0f bb d0 c3 cc cc
> cc cc 0f 1f 80 00 00 00 00 0f c0 d0 c3 cc cc cc cc 66 0f c1 d0 c3 cc
> cc cc cc <0f> 1f 80 00 00 00 00 0f c1 d0 c3 cc cc cc cc 48 0f c1 d0 c3
> cc cc
> [ 105.653728] RSP: 0018:ffffb98bc5157ce8 EFLAGS: 00000206
> [ 105.653729] RAX: 0000000089abcdef RBX: 0000000000000001 RCX: 0000000000000000
> [ 105.653730] RDX: 0000000076543210 RSI: ffffffff8ea56000 RDI: 0000000000000204
> [ 105.653731] RBP: ffffb98bc5157cf0 R08: ffffa306c6cf5df0 R09: 0000000000000002
> [ 105.653732] R10: ffffa306c6cf5df0 R11: 0000000000000000 R12: ffffa306c6cf5df0
> [ 105.653733] R13: ffffffff900090c0 R14: 0000000000000000 R15: 0000000000000000
> [ 105.653734] FS: 00007f30ab0df700(0000) GS:ffffa30a1fd80000(0000)
> knlGS:0000000000000000
> [ 105.653735] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 105.653736] CR2: 0000000000000000 CR3: 000000014e0d0003 CR4: 00000000003726e0
> [ 105.653736] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 105.653737] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 105.653738] Call Trace:
> [ 105.653738] <TASK>
> [ 105.653739] ? fastop+0x5d/0xa0
> [ 105.653741] x86_emulate_insn+0x7c9/0xf20
> [ 105.653743] x86_emulate_instruction+0x2e3/0x790
> [ 105.653746] complete_emulated_mmio+0x238/0x310
> [ 105.653748] kvm_arch_vcpu_ioctl_run+0x11ba/0x1a70
> [ 105.653750] ? vfs_writev+0xcb/0x140
> [ 105.653753] kvm_vcpu_ioctl+0x281/0x6b0
> [ 105.653755] ? clockevents_program_event+0x98/0x100
> [ 105.653757] ? selinux_file_ioctl+0xae/0x140
> [ 105.653760] ? selinux_file_ioctl+0xae/0x140
> [ 105.653762] __x64_sys_ioctl+0x95/0xd0
> [ 105.653764] do_syscall_64+0x3b/0x90
> [ 105.653767] entry_SYSCALL_64_after_hwframe+0x61/0xcb
> [ 105.653769] RIP: 0033:0x7f30aca698f7
> [ 105.653770] Code: b3 66 90 48 8b 05 a1 35 2c 00 64 c7 00 26 00 00
> 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00
> 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 35 2c 00 f7 d8 64 89
> 01 48
> [ 105.653771] RSP: 002b:00007f30ab0dea28 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000010
> [ 105.653772] RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007f30aca698f7
> [ 105.653773] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000000f
> [ 105.653774] RBP: 000055fb7fb6faf0 R08: 000055fb7d67c450 R09: 00000000ffffffff
> [ 105.653775] R10: 00000000000216a8 R11: 0000000000000246 R12: 0000000000000000
> [ 105.653775] R13: 00007f30aed99000 R14: 0000000000000006 R15: 000055fb7fb6faf0
> [ 105.653776] </TASK>
> [ 105.653777] Modules linked in: x86_pkg_temp_thermal
> [ 105.902123] ---[ end trace cec99cae36bcbfd7 ]---
> [ 105.902124] RIP: 0010:xaddw_ax_dx+0x9/0x10
> [ 105.902126] Code: 00 0f bb d0 c3 cc cc cc cc 48 0f bb d0 c3 cc cc
> cc cc 0f 1f 80 00 00 00 00 0f c0 d0 c3 cc cc cc cc 66 0f c1 d0 c3 cc
> cc cc cc <0f> 1f 80 00 00 00 00 0f c1 d0 c3 cc cc cc cc 48 0f c1 d0 c3
> cc cc
> [ 105.902127] RSP: 0018:ffffb98bc5157ce8 EFLAGS: 00000206
> [ 105.902127] RAX: 0000000089abcdef RBX: 0000000000000001 RCX: 0000000000000000
> [ 105.902128] RDX: 0000000076543210 RSI: ffffffff8ea56000 RDI: 0000000000000204
> [ 105.902129] RBP: ffffb98bc5157cf0 R08: ffffa306c6cf5df0 R09: 0000000000000002
> [ 105.902129] R10: ffffa306c6cf5df0 R11: 0000000000000000 R12: ffffa306c6cf5df0
> [ 105.902130] R13: ffffffff900090c0 R14: 0000000000000000 R15: 0000000000000000
> [ 105.902130] FS: 00007f30ab0df700(0000) GS:ffffa30a1fd80000(0000)
> knlGS:0000000000000000
> [ 105.902131] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 105.902132] CR2: 0000000000000000 CR3: 000000014e0d0003 CR4: 00000000003726e0
> [ 105.902133] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 105.902133] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 105.902134] Kernel panic - not syncing: Fatal exception in interrupt
> [ 105.902170] Kernel Offset: 0xda00000 from 0xffffffff81000000
> (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
> [ 106.022663] ---[ end Kernel panic - not syncing: Fatal exception in
> interrupt ]---
> [ 106.030224] ------------[ cut here ]------------
> [ 106.030224] sched: Unexpected reschedule of offline CPU#0!
> [ 106.030226] WARNING: CPU: 3 PID: 3747 at
> arch/x86/kernel/apic/ipi.c:68 native_smp_send_reschedule+0x3e/0x50
> [ 106.030229] Modules linked in: x86_pkg_temp_thermal
> [ 106.030230] CPU: 3 PID: 3747 Comm: qemu-system-x86 Tainted: G
> D 5.15.55-rc1 #1
> [ 106.030231] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
> 2.0b 07/27/2017
> [ 106.030232] RIP: 0010:native_smp_send_reschedule+0x3e/0x50
> [ 106.030234] Code: 1b 48 8b 05 d4 70 a6 01 be fd 00 00 00 48 8b 40
> 30 e8 66 dc 31 01 5d c3 cc cc cc cc 89 fe 48 c7 c7 a0 e9 41 90 e8 1e
> c3 ea 00 <0f> 0b 5d c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
> 44 00
> [ 106.030234] RSP: 0018:ffffb98bc0160c60 EFLAGS: 00010086
> [ 106.030235] RAX: 0000000000000000 RBX: ffffa30a1fc29b00 RCX: 0000000000000027
> [ 106.030236] RDX: ffffa30a1fd9b4b8 RSI: 0000000000000001 RDI: ffffa30a1fd9b4b0
> [ 106.030237] RBP: ffffb98bc0160c60 R08: ffffffff90b65665 R09: 0000000000000000
> [ 106.030237] R10: 0000000000000030 R11: ffffffff90b65665 R12: ffffa306c097c100
> [ 106.030238] R13: ffffb98bc0160d00 R14: ffffb98bc0160d00 R15: 0000000000000009
> [ 106.030239] FS: 00007f30ab0df700(0000) GS:ffffa30a1fd80000(0000)
> knlGS:0000000000000000
> [ 106.030239] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 106.030240] CR2: 0000000000000000 CR3: 000000014e0d0003 CR4: 00000000003726e0
> [ 106.030241] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 106.030241] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 106.030242] Call Trace:
> [ 106.030242] <IRQ>
> [ 106.030243] resched_curr+0x52/0xb0
> [ 106.030245] check_preempt_curr+0x3b/0x70
> [ 106.030247] ttwu_do_wakeup+0x1c/0x160
> [ 106.030249] ttwu_do_activate+0x94/0x190
> [ 106.030251] try_to_wake_up+0x1c4/0x480
> [ 106.030253] default_wake_function+0x1a/0x40
> [ 106.030254] autoremove_wake_function+0x12/0x40
> [ 106.030256] __wake_up_common+0x7d/0x140
> [ 106.030258] __wake_up_common_lock+0x7c/0xc0
> [ 106.030261] __wake_up+0x13/0x20
> [ 106.030263] wake_up_klogd_work_func+0x7b/0x90
> [ 106.030265] irq_work_single+0x46/0x80
> [ 106.030267] irq_work_run_list+0x2a/0x40
> [ 106.030269] irq_work_tick+0x3b/0x50
> [ 106.030270] update_process_times+0xba/0xd0
> [ 106.030272] tick_sched_handle+0x38/0x50
> [ 106.030274] tick_sched_timer+0x8c/0xc0
> [ 106.030276] ? can_stop_idle_tick+0xa0/0xa0
> [ 106.030278] __hrtimer_run_queues+0xa6/0x2b0
> [ 106.030280] hrtimer_interrupt+0x101/0x220
> [ 106.030281] __sysvec_apic_timer_interrupt+0x61/0xe0
> [ 106.030283] sysvec_apic_timer_interrupt+0x7b/0x90
> [ 106.030285] </IRQ>
> [ 106.030285] <TASK>
> [ 106.030286] asm_sysvec_apic_timer_interrupt+0x1a/0x20
> [ 106.030288] RIP: 0010:panic+0x277/0x2b6
> [ 106.030290] Code: e8 65 ac 25 ff 48 c7 c6 80 04 b5 90 48 c7 c7 80
> 3f 42 90 e8 6a 58 00 00 c7 05 cc 8e f5 00 01 00 00 00 e8 d3 80 33 ff
> fb 31 db <4c> 39 eb 7c 1d 41 83 f4 01 48 8b 05 a0 d2 1b 01 44 89 e7 e8
> 18 16
> [ 106.030291] RSP: 0018:ffffb98bc5157b10 EFLAGS: 00000246
> [ 106.030292] RAX: ffffb98bc5157b80 RBX: 0000000000000000 RCX: 0000000000000027
> [ 106.030292] RDX: 0000000000000000 RSI: ffffffff8f98de8f RDI: ffffffff8f99314d
> [ 106.030293] RBP: ffffb98bc5157b80 R08: ffffffff90b655fa R09: 0000000090b655d6
> [ 106.030293] R10: ffffffffffffffff R11: ffffffffffffffff R12: 0000000000000000
> [ 106.030294] R13: 0000000000000000 R14: ffffffff904131e0 R15: 0000000000000000
> [ 106.030295] ? oops_end.cold+0xc/0x18
> [ 106.030297] ? panic+0x274/0x2b6
> [ 106.030299] oops_end.cold+0xc/0x18
> [ 106.030300] die+0x43/0x60
> [ 106.030302] exc_int3+0x137/0x160
> [ 106.030303] asm_exc_int3+0x39/0x40
> [ 106.030305] RIP: 0010:xaddw_ax_dx+0x9/0x10
> [ 106.030307] Code: 00 0f bb d0 c3 cc cc cc cc 48 0f bb d0 c3 cc cc
> cc cc 0f 1f 80 00 00 00 00 0f c0 d0 c3 cc cc cc cc 66 0f c1 d0 c3 cc
> cc cc cc <0f> 1f 80 00 00 00 00 0f c1 d0 c3 cc cc cc cc 48 0f c1 d0 c3
> cc cc
> [ 106.030308] RSP: 0018:ffffb98bc5157ce8 EFLAGS: 00000206
> [ 106.030308] RAX: 0000000089abcdef RBX: 0000000000000001 RCX: 0000000000000000
> [ 106.030309] RDX: 0000000076543210 RSI: ffffffff8ea56000 RDI: 0000000000000204
> [ 106.030310] RBP: ffffb98bc5157cf0 R08: ffffa306c6cf5df0 R09: 0000000000000002
> [ 106.030310] R10: ffffa306c6cf5df0 R11: 0000000000000000 R12: ffffa306c6cf5df0
> [ 106.030311] R13: ffffffff900090c0 R14: 0000000000000000 R15: 0000000000000000
> [ 106.030312] ? xaddw_ax_dx+0x8/0x10
> [ 106.030314] ? xaddw_ax_dx+0x9/0x10
> [ 106.030315] ? xaddw_ax_dx+0x8/0x10
> [ 106.030317] ? fastop+0x5d/0xa0
> [ 106.030319] x86_emulate_insn+0x7c9/0xf20
> [ 106.030321] x86_emulate_instruction+0x2e3/0x790
> [ 106.030323] complete_emulated_mmio+0x238/0x310
> [ 106.030325] kvm_arch_vcpu_ioctl_run+0x11ba/0x1a70
> [ 106.030327] ? vfs_writev+0xcb/0x140
> [ 106.030330] kvm_vcpu_ioctl+0x281/0x6b0
> [ 106.030331] ? clockevents_program_event+0x98/0x100
> [ 106.030333] ? selinux_file_ioctl+0xae/0x140
> [ 106.030335] ? selinux_file_ioctl+0xae/0x140
> [ 106.030337] __x64_sys_ioctl+0x95/0xd0
> [ 106.030339] do_syscall_64+0x3b/0x90
> [ 106.030340] entry_SYSCALL_64_after_hwframe+0x61/0xcb
> [ 106.030342] RIP: 0033:0x7f30aca698f7
> [ 106.030343] Code: b3 66 90 48 8b 05 a1 35 2c 00 64 c7 00 26 00 00
> 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00
> 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 35 2c 00 f7 d8 64 89
> 01 48
> [ 106.030343] RSP: 002b:00007f30ab0dea28 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000010
> [ 106.030344] RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007f30aca698f7
> [ 106.030345] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000000f
> [ 106.030346] RBP: 000055fb7fb6faf0 R08: 000055fb7d67c450 R09: 00000000ffffffff
> [ 106.030346] R10: 00000000000216a8 R11: 0000000000000246 R12: 0000000000000000
> [ 106.030347] R13: 00007f30aed99000 R14: 0000000000000006 R15: 000055fb7fb6faf0
> [ 106.030348] </TASK>
> [ 106.030348] ---[ end trace cec99cae36bcbfd8 ]---
> [ 106.030350] ------------[ cut here ]------------
> [ 106.030350] sched: Unexpected reschedule of offline CPU#2!
> [ 106.030351] WARNING: CPU: 3 PID: 3747 at
> arch/x86/kernel/apic/ipi.c:68 native_smp_send_reschedule+0x3e/0x50
> [ 106.030354] Modules linked in: x86_pkg_temp_thermal
> [ 106.030354] CPU: 3 PID: 3747 Comm: qemu-system-x86 Tainted: G
> D W 5.15.55-rc1 #1
> [ 106.030355] Hardware name: Supermicro SYS-5019S-ML/X11SSH-F, BIOS
> 2.0b 07/27/2017
> [ 106.030356] RIP: 0010:native_smp_send_reschedule+0x3e/0x50
> [ 106.030357] Code: 1b 48 8b 05 d4 70 a6 01 be fd 00 00 00 48 8b 40
> 30 e8 66 dc 31 01 5d c3 cc cc cc cc 89 fe 48 c7 c7 a0 e9 41 90 e8 1e
> c3 ea 00 <0f> 0b 5d c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 0f 1f
> 44 00
> [ 106.030358] RSP: 0018:ffffb98bc0160b40 EFLAGS: 00010086
> [ 106.030359] RAX: 0000000000000000 RBX: ffffa30a1fd29b00 RCX: 0000000000000027
> [ 106.030360] RDX: ffffa30a1fd9b4b8 RSI: 0000000000000001 RDI: ffffa30a1fd9b4b0
> [ 106.030360] RBP: ffffb98bc0160b40 R08: ffffffff90b66d1d R09: 0000000000000000
> [ 106.030361] R10: 0000000000000030 R11: ffffffff90b66d1d R12: ffffa306c2216180
> [ 106.030361] R13: ffffb98bc0160be0 R14: ffffb98bc0160be0 R15: 0000000000000009
> [ 106.030362] FS: 00007f30ab0df700(0000) GS:ffffa30a1fd80000(0000)
> knlGS:0000000000000000
> [ 106.030363] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 106.030364] CR2: 0000000000000000 CR3: 000000014e0d0003 CR4: 00000000003726e0
> [ 106.030364] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> [ 106.030365] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> [ 106.030365] Call Trace:
> [ 106.030366] <IRQ>
> [ 106.030366] resched_curr+0x52/0xb0
> [ 106.030368] check_preempt_curr+0x3b/0x70
> [ 106.030369] ttwu_do_wakeup+0x1c/0x160
> [ 106.030371] ttwu_do_activate+0x94/0x190
> [ 106.030373] try_to_wake_up+0x1c4/0x480
> [ 106.030375] default_wake_function+0x1a/0x40
> [ 106.030377] autoremove_wake_function+0x12/0x40
> [ 106.030378] __wake_up_common+0x7d/0x140
> [ 106.030380] __wake_up_common_lock+0x7c/0xc0
> [ 106.030382] __wake_up+0x13/0x20
> [ 106.030384] ep_poll_callback+0x10e/0x290
> [ 106.030386] __wake_up_common+0x7d/0x140
> [ 106.030389] __wake_up_common_lock+0x7c/0xc0
> [ 106.030391] __wake_up+0x13/0x20
> [ 106.030393] wake_up_klogd_work_func+0x7b/0x90
> [ 106.030395] irq_work_single+0x46/0x80
> [ 106.030397] irq_work_run_list+0x2a/0x40
> [ 106.030398] irq_work_tick+0x3b/0x50
> [ 106.030400] update_process_times+0xba/0xd0
> [ 106.030401] tick_sched_handle+0x38/0x50
> [ 106.030403] tick_sched_timer+0x8c/0xc0
> [ 106.030405] ? can_stop_idle_tick+0xa0/0xa0
> [ 106.030407] __hrtimer_run_queues+0xa6/0x2b0
> [ 106.030408] hrtimer_interrupt+0x101/0x220
> [ 106.030410] __sysvec_apic_timer_interrupt+0x61/0xe0
> [ 106.030411] sysvec_apic_timer_interrupt+0x7b/0x90
> [ 106.030413] </IRQ>
> [ 106.030413] <TASK>
> [ 106.030414] asm_sysvec_apic_timer_interrupt+0x1a/0x20
> [ 106.030416] RIP: 0010:panic+0x277/0x2b6
> [ 106.030417] Code: e8 65 ac 25 ff 48 c7 c6 80 04 b5 90 48 c7 c7 80
> 3f 42 90 e8 6a 58 00 00 c7 05 cc 8e f5 00 01 00 00 00 e8 d3 80 33 ff
> fb 31 db <4c> 39 eb 7c 1d 41 83 f4 01 48 8b 05 a0 d2 1b 01 44 89 e7 e8
> 18 16
> [ 106.030418] RSP: 0018:ffffb98bc5157b10 EFLAGS: 00000246
> [ 106.030419] RAX: ffffb98bc5157b80 RBX: 0000000000000000 RCX: 0000000000000027
> [ 106.030419] RDX: 0000000000000000 RSI: ffffffff8f98de8f RDI: ffffffff8f99314d
> [ 106.030420] RBP: ffffb98bc5157b80 R08: ffffffff90b655fa R09: 0000000090b655d6
> [ 106.030420] R10: ffffffffffffffff R11: ffffffffffffffff R12: 0000000000000000
> [ 106.030421] R13: 0000000000000000 R14: ffffffff904131e0 R15: 0000000000000000
> [ 106.030422] ? oops_end.cold+0xc/0x18
> [ 106.030423] ? panic+0x274/0x2b6
> [ 106.030425] oops_end.cold+0xc/0x18
> [ 106.030427] die+0x43/0x60
> [ 106.030428] exc_int3+0x137/0x160
> [ 106.030430] asm_exc_int3+0x39/0x40
> [ 106.030431] RIP: 0010:xaddw_ax_dx+0x9/0x10
> [ 106.030433] Code: 00 0f bb d0 c3 cc cc cc cc 48 0f bb d0 c3 cc cc
> cc cc 0f 1f 80 00 00 00 00 0f c0 d0 c3 cc cc cc cc 66 0f c1 d0 c3 cc
> cc cc cc <0f> 1f 80 00 00 00 00 0f c1 d0 c3 cc cc cc cc 48 0f c1 d0 c3
> cc cc
> [ 106.030434] RSP: 0018:ffffb98bc5157ce8 EFLAGS: 00000206
> [ 106.030434] RAX: 0000000089abcdef RBX: 0000000000000001 RCX: 0000000000000000
> [ 106.030435] RDX: 0000000076543210 RSI: ffffffff8ea56000 RDI: 0000000000000204
> [ 106.030436] RBP: ffffb98bc5157cf0 R08: ffffa306c6cf5df0 R09: 0000000000000002
> [ 106.030436] R10: ffffa306c6cf5df0 R11: 0000000000000000 R12: ffffa306c6cf5df0
> [ 106.030437] R13: ffffffff900090c0 R14: 0000000000000000 R15: 0000000000000000
> [ 106.030437] ? xaddw_ax_dx+0x8/0x10
> [ 106.030439] ? xaddw_ax_dx+0x9/0x10
> [ 106.030441] ? xaddw_ax_dx+0x8/0x10
> [ 106.030443] ? fastop+0x5d/0xa0
> [ 106.030445] x86_emulate_insn+0x7c9/0xf20
> [ 106.030446] x86_emulate_instruction+0x2e3/0x790
> [ 106.030449] complete_emulated_mmio+0x238/0x310
> [ 106.030450] kvm_arch_vcpu_ioctl_run+0x11ba/0x1a70
> [ 106.030453] ? vfs_writev+0xcb/0x140
> [ 106.030455] kvm_vcpu_ioctl+0x281/0x6b0
> [ 106.030456] ? clockevents_program_event+0x98/0x100
> [ 106.030458] ? selinux_file_ioctl+0xae/0x140
> [ 106.030460] ? selinux_file_ioctl+0xae/0x140
> [ 106.030462] __x64_sys_ioctl+0x95/0xd0
> [ 106.030464] do_syscall_64+0x3b/0x90
> [ 106.030465] entry_SYSCALL_64_after_hwframe+0x61/0xcb
> [ 106.030467] RIP: 0033:0x7f30aca698f7
> [ 106.030468] Code: b3 66 90 48 8b 05 a1 35 2c 00 64 c7 00 26 00 00
> 00 48 c7 c0 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 b8 10 00 00
> 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 71 35 2c 00 f7 d8 64 89
> 01 48
> [ 106.030468] RSP: 002b:00007f30ab0dea28 EFLAGS: 00000246 ORIG_RAX:
> 0000000000000010
> [ 106.030469] RAX: ffffffffffffffda RBX: 000000000000ae80 RCX: 00007f30aca698f7
> [ 106.030470] RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 000000000000000f
> [ 106.030470] RBP: 000055fb7fb6faf0 R08: 000055fb7d67c450 R09: 00000000ffffffff
> [ 106.030471] R10: 00000000000216a8 R11: 0000000000000246 R12: 0000000000000000
> [ 106.030472] R13: 00007f30aed99000 R14: 0000000000000006 R15: 000055fb7fb6faf0
> [ 106.030473] </TASK>
> [ 106.030473] ---[ end trace cec99cae36bcbfd9 ]---
>
> 2. Kernel warning
> - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15.54-79-g0fe4fdf9b1da/testrun/10799646/suite/log-parser-test/tests/
> <6>[ 0.571674] Speculative Store Bypass: Vulnerable
> <6>[ 0.573329] MDS: Vulnerable: Clear CPU buffers attempted, no microcode
> <4>[ 0.942716] ------------[ cut here ]------------
> <4>[ 0.944263] WARNING: CPU: 0 PID: 0 at
> arch/x86/kernel/alternative.c:557 apply_returns+0x19c/0x1d0
> <4>[ 0.945106] Modules linked in:
> <4>[ 0.946322] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.15.55-rc1 #1
> <4>[ 0.947052] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
> BIOS 1.14.0-2 04/01/2014
> <4>[ 0.947844] RIP: 0010:apply_returns+0x19c/0x1d0
> <4>[ 0.948453] Code: 8d 7d c8 4c 89 75 c1 4c 89 74 08 f8 48 29 f8
> 8d 0c 02 4c 89 f0 c1 e9 03 f3 48 ab 8b 05 9d ba 52 02 85 c0 74 a0 e9
> 45 32 1a 01 <0f> 0b 48 83 c3 04 49 39 dd 0f 87 96 fe ff ff e9 0f ff ff
> ff c7 45
> <4>[ 0.950059] RSP: 0000:ffffffff89803d78 EFLAGS: 00000206
> <4>[ 0.950484] RAX: 0000000000000000 RBX: ffffffff89dbb174 RCX:
> 0000000000000000
> <4>[ 0.951033] RDX: ffffffff891011b5 RSI: 00000000000000e9 RDI:
> ffffffff891011b0
> <4>[ 0.951488] RBP: ffffffff89803e40 R08: 0000000000000000 R09:
> 0000000000000001
> <4>[ 0.952032] R10: 0000000000000029 R11: 0000000000000000 R12:
> ffffffff891011b0
> <4>[ 0.952488] R13: ffffffff89ddb184 R14: cccccccccccccccc R15:
> ffffffff891011b5
> <4>[ 0.953125] FS: 0000000000000000(0000)
> GS:ffff90f63fc00000(0000) knlGS:0000000000000000
> <4>[ 0.953634] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> <4>[ 0.954031] CR2: ffff90f63fa01000 CR3: 000000003e826000 CR4:
> 00000000000006f0
> <4>[ 0.954669] Call Trace:
> <4>[ 0.955846] <TASK>
> <4>[ 0.957183] alternative_instructions+0x7d/0x146
> <4>[ 0.957673] check_bugs+0xf16/0xf57
> <4>[ 0.958114] start_kernel+0x6b6/0x6ef
> <4>[ 0.958446] x86_64_start_reservations+0x24/0x2a
> <4>[ 0.958764] x86_64_start_kernel+0x8d/0x95
> <4>[ 0.959035] secondary_startup_64_no_verify+0xc2/0xcb
> <4>[ 0.959591] </TASK>
> <4>[ 0.960146] irq event stamp: 121171
> <4>[ 0.960419] hardirqs last enabled at (121179):
> [<ffffffff87a7247c>] __up_console_sem+0x5c/0x70
> <4>[ 0.961036] hardirqs last disabled at (121188):
> [<ffffffff87a72461>] __up_console_sem+0x41/0x70
> <4>[ 0.961577] softirqs last enabled at (1484):
> [<ffffffff87ad3f20>] cgroup_idr_alloc.constprop.0+0x60/0xe0
> <4>[ 0.962031] softirqs last disabled at (1482):
> [<ffffffff87ad3ef3>] cgroup_idr_alloc.constprop.0+0x33/0xe0
> <4>[ 0.963358] ---[ end trace 7af0f35d34a8be8b ]---
> <6>[ 1.100332] Freeing SMP alternatives memory: 52K
> <6>[ 1.233988] smpboot: CPU0: Intel Core i7 9xx (Nehalem Class Core
> i7) (family: 0x6, model: 0x1a, stepping: 0x3)
> <6>[ 1.266761] Running RCU-tasks wait API self tests
> <6>[ 1.271070] Performance Events: unsupported p6 CPU model 26 no
> PMU driver, software events only.
> <6>[ 1.276776] rcu: Hierarchical SRCU implementation.
> <6>[ 1.281153] Callback from call_rcu_ta#
> sks_trace() invoked.
> <6>[ 1.308215] smp: Bringing up secondary CPUs ...
> <6>[ 1.322732] x86: Booting SMP configuration:
> <6>[ 1.323121] .... node #0, CPUs: #1
> <6>[ 1.361239] smp: Brought up 1 node, 2 CPUs
>
>
> ## Build
> * kernel: 5.15.55-rc1
> * git: https://gitlab.com/Linaro/lkft/mirrors/stable/linux-stable-rc
> * git branch: linux-5.15.y
> * git commit: 0fe4fdf9b1dac90e23465eefeff45e529adcf3c6
> * git describe: v5.15.54-79-g0fe4fdf9b1da
> * test details:
> https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15.54-79-g0fe4fdf9b1da
>
> ## Test Regressions (compared to v5.15.53-227-g71721f5974f2)
> kernel crash regression found.
>
> ## Metric Regressions (compared to v5.15.53-227-g71721f5974f2)
> No metric regressions found.
>
> ## Test Fixes (compared to v5.15.53-227-g71721f5974f2)
> No test fixes found.
>
> ## Metric Fixes (compared to v5.15.53-227-g71721f5974f2)
> No metric fixes found.
>
> ## Test result summary
> total: 137556, pass: 124337, fail: 404, skip: 12121, xfail: 694
>
> ## Build Summary
> * arc: 10 total, 10 passed, 0 failed
> * arm: 308 total, 308 passed, 0 failed
> * arm64: 62 total, 62 passed, 0 failed
> * i386: 52 total, 49 passed, 3 failed
> * mips: 48 total, 48 passed, 0 failed
> * parisc: 12 total, 12 passed, 0 failed
> * powerpc: 54 total, 52 passed, 2 failed
> * riscv: 22 total, 22 passed, 0 failed
> * s390: 21 total, 21 passed, 0 failed
> * sh: 24 total, 24 passed, 0 failed
> * sparc: 12 total, 12 passed, 0 failed
> * x86_64: 56 total, 55 passed, 1 failed
>
> ## Test suites summary
> * fwts
> * kunit
> * kvm-unit-tests
> * libgpiod
> * libhugetlbfs
> * log-parser-boot
> * log-parser-test
> * ltp-cap_bounds
> * ltp-commands
> * ltp-containers
> * ltp-controllers
> * ltp-cpuhotplug
> * ltp-crypto
> * ltp-cve
> * ltp-dio
> * ltp-fcntl-locktests
> * ltp-filecaps
> * ltp-fs
> * ltp-fs_bind
> * ltp-fs_perms_simple
> * ltp-fsx
> * ltp-hugetlb
> * ltp-io
> * ltp-ipc
> * ltp-math
> * ltp-mm
> * ltp-nptl
> * ltp-open-posix-tests
> * ltp-pty
> * ltp-sched
> * ltp-securebits
> * ltp-smoke
> * ltp-syscalls
> * ltp-tracing
> * network-basic-tests
> * packetdrill
> * perf
> * perf/Zstd-perf.data-compression
> * rcutorture
> * ssuite
> * v4l2-compliance
> * vdso
>
> --
> Linaro LKFT
> https://lkft.linaro.org
>
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