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Message #05314
[Bug 2072972] Re: ftrace:test.d--ftrace--func_traceonoff_triggers.tc in ubuntu_kselftests_ftrace triggers kernel NULL pointer dereference on node blanka
I ran the trace in the bug description through decode_stacktrace.sh,
which seems to provide a good hint for what's happening. The null
pointer dereference occurs when trying to access dev->init_name in
function dev_name of include/linux/device.h, which is called while
triggering the wbt_timer trace event defined in
include/trace/events/wbt.h. The trace event is triggered by the
wb_timer_fn function in block/blk-wbt.c.
The trace indicates the `dev` provided to dev_name is NULL, so from the
perspective of wb_timer_fn, rwb->rqos.q->backing_dev_info->dev is NULL.
[ 7112.186092] Scheduler tracepoints stat_sleep, stat_iowait, stat_blocked and stat_runtime require the kernel parameter schedstats=enable or kernel.sched_schedstats=1
[ 7128.566260] BUG: kernel NULL pointer dereference, address: 0000000000000050
[ 7128.574031] #PF: supervisor read access in kernel mode
[ 7128.579763] #PF: error_code(0x0000) - not-present page
[ 7128.585495] PGD 0 P4D 0
[ 7128.588320] Oops: 0000 [#1] SMP NOPTI
[ 7128.592405] CPU: 129 PID: 0 Comm: swapper/129 Tainted: G OE 5.4.0-190-generic #210-Ubuntu
[ 7128.602887] Hardware name: NVIDIA DGXA100 920-23687-2530-000/DGXA100, BIOS 1.25 08/31/2023
[ 7128.612119] RIP: 0010:trace_event_raw_event_wbt_timer (/build/linux-0OIRCA/linux-5.4.0/include/linux/device.h:1345 (discriminator 5) /build/linux-0OIRCA/linux-5.4.0/include/trace/events/wbt.h:129 (discriminator 5))
[ 7128.618820] Code: 59 80 e5 02 0f 85 8f 00 00 00 4c 89 e6 ba 34 00 00 00 48 8d 7d a0 e8 b0 ab c9 ff 49 89 c4 48 85 c0 74 37 49 8b 87 b8 03 00 00 <48> 8b 70 50 48 85 f6 74 45 49 8d 7c 24 08 ba 20 00 00 00 e8 c9 12
All code
========
0: 59 pop %rcx
1: 80 e5 02 and $0x2,%ch
4: 0f 85 8f 00 00 00 jne 0x99
a: 4c 89 e6 mov %r12,%rsi
d: ba 34 00 00 00 mov $0x34,%edx
12: 48 8d 7d a0 lea -0x60(%rbp),%rdi
16: e8 b0 ab c9 ff callq 0xffffffffffc9abcb
1b: 49 89 c4 mov %rax,%r12
1e: 48 85 c0 test %rax,%rax
21: 74 37 je 0x5a
23: 49 8b 87 b8 03 00 00 mov 0x3b8(%r15),%rax
2a:* 48 8b 70 50 mov 0x50(%rax),%rsi <-- trapping instruction
2e: 48 85 f6 test %rsi,%rsi
31: 74 45 je 0x78
33: 49 8d 7c 24 08 lea 0x8(%r12),%rdi
38: ba 20 00 00 00 mov $0x20,%edx
3d: e8 .byte 0xe8
3e: c9 leaveq
3f: 12 .byte 0x12
Code starting with the faulting instruction
===========================================
0: 48 8b 70 50 mov 0x50(%rax),%rsi
4: 48 85 f6 test %rsi,%rsi
7: 74 45 je 0x4e
9: 49 8d 7c 24 08 lea 0x8(%r12),%rdi
e: ba 20 00 00 00 mov $0x20,%edx
13: e8 .byte 0xe8
14: c9 leaveq
15: 12 .byte 0x12
[ 7128.639774] RSP: 0018:ffffb1779b140da0 EFLAGS: 00010282
[ 7128.645604] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000080000100
[ 7128.653565] RDX: ffff8fe7ae7052f8 RSI: 0000000000000100 RDI: ffff8fe7ae7052f4
[ 7128.661525] RBP: ffffb1779b140e08 R08: ffff8fe7ae7052f4 R09: 0000000000000100
[ 7128.669486] R10: ffffd1777fdcb960 R11: 0000000000000000 R12: ffff8fe7ae7052f8
[ 7128.677445] R13: 00000000ffffffff R14: 0000000000000002 R15: ffff9047fe8f5000
[ 7128.685409] FS: 0000000000000000(0000) GS:ffff8fe80f840000(0000) knlGS:0000000000000000
[ 7128.694437] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7128.700847] CR2: 0000000000000050 CR3: 000000cb2760a000 CR4: 0000000000340ee0
[ 7128.708809] Call Trace:
[ 7128.711535] <IRQ>
[ 7128.713782] ? show_regs.cold (/build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/dumpstack.c:426 /build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/dumpstack.c:416)
[ 7128.718058] ? __die (/build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/dumpstack.c:392)
[ 7128.721467] ? no_context (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/fault.c:846)
[ 7128.725555] ? ring_buffer_lock_reserve (/build/linux-0OIRCA/linux-5.4.0/kernel/trace/ring_buffer.c:3066 /build/linux-0OIRCA/linux-5.4.0/kernel/trace/ring_buffer.c:3126)
[ 7128.730996] ? ring_buffer_unlock_commit (/build/linux-0OIRCA/linux-5.4.0/kernel/trace/ring_buffer.c:2717 /build/linux-0OIRCA/linux-5.4.0/kernel/trace/ring_buffer.c:2916)
[ 7128.736436] ? __bad_area_nosemaphore (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/fault.c:935)
[ 7128.741585] ? bad_area_nosemaphore (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/fault.c:942)
[ 7128.746445] ? do_user_addr_fault (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/fault.c:1508)
[ 7128.751306] ? trace_event_raw_event_x86_exceptions (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/../include/asm/trace/./exceptions.h:14)
[ 7128.757718] ? __do_page_fault (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/fault.c:1529)
[ 7128.762092] ? do_page_fault (/build/linux-0OIRCA/linux-5.4.0/arch/x86/mm/fault.c:1554)
[ 7128.766276] ? page_fault (/build/linux-0OIRCA/linux-5.4.0/arch/x86/entry/entry_64.S:1207)
[ 7128.770167] ? trace_event_raw_event_wbt_timer (/build/linux-0OIRCA/linux-5.4.0/include/linux/device.h:1345 (discriminator 5) /build/linux-0OIRCA/linux-5.4.0/include/trace/events/wbt.h:129 (discriminator 5))
[ 7128.776190] wb_timer_fn (/build/linux-0OIRCA/linux-5.4.0/include/trace/events/wbt.h:129 /build/linux-0OIRCA/linux-5.4.0/block/blk-wbt.c:362)
[ 7128.780179] ? blk_mq_tag_update_depth (/build/linux-0OIRCA/linux-5.4.0/block/blk-stat.c:80)
[ 7128.785522] blk_stat_timer_fn (/build/linux-0OIRCA/linux-5.4.0/block/blk-stat.c:99)
[ 7128.790094] call_timer_fn (/build/linux-0OIRCA/linux-5.4.0/arch/x86/include/asm/jump_label.h:25 /build/linux-0OIRCA/linux-5.4.0/include/linux/jump_label.h:200 /build/linux-0OIRCA/linux-5.4.0/include/trace/events/timer.h:125 /build/linux-0OIRCA/linux-5.4.0/kernel/time/timer.c:1449)
[ 7128.794179] __run_timers.part.0 (/build/linux-0OIRCA/linux-5.4.0/kernel/time/timer.c:1494 /build/linux-0OIRCA/linux-5.4.0/kernel/time/timer.c:1819)
[ 7128.798945] ? trace_event_raw_event_softirq (/build/linux-0OIRCA/linux-5.4.0/include/trace/events/irq.h:103)
[ 7128.804677] run_timer_softirq (/build/linux-0OIRCA/linux-5.4.0/kernel/time/timer.c:1834)
[ 7128.809053] __do_softirq (/build/linux-0OIRCA/linux-5.4.0/arch/x86/include/asm/jump_label.h:25 /build/linux-0OIRCA/linux-5.4.0/include/linux/jump_label.h:200 /build/linux-0OIRCA/linux-5.4.0/include/trace/events/irq.h:142 /build/linux-0OIRCA/linux-5.4.0/kernel/softirq.c:293)
[ 7128.813041] irq_exit (/build/linux-0OIRCA/linux-5.4.0/kernel/softirq.c:373 /build/linux-0OIRCA/linux-5.4.0/kernel/softirq.c:413)
[ 7128.816545] smp_apic_timer_interrupt (/build/linux-0OIRCA/linux-5.4.0/arch/x86/include/asm/irq_regs.h:27 /build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/apic/apic.c:1151)
[ 7128.821696] apic_timer_interrupt (/build/linux-0OIRCA/linux-5.4.0/arch/x86/entry/entry_64.S:835)
[ 7128.826264] </IRQ>
[ 7128.828603] RIP: 0010:native_safe_halt (/build/linux-0OIRCA/linux-5.4.0/arch/x86/include/asm/irqflags.h:61)
[ 7128.833655] Code: 7b ff ff ff eb bd 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d a6 14 50 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 96 14 50 00 fb f4 <c3> 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 e8 ed 46 61 ff 65
All code
========
0: 7b ff jnp 0x1
2: ff (bad)
3: ff (bad)
4: eb bd jmp 0xffffffffffffffc3
6: 90 nop
7: 90 nop
8: 90 nop
9: 90 nop
a: 90 nop
b: 90 nop
c: e9 07 00 00 00 jmpq 0x18
11: 0f 00 2d a6 14 50 00 verw 0x5014a6(%rip) # 0x5014be
18: f4 hlt
19: c3 retq
1a: 66 90 xchg %ax,%ax
1c: e9 07 00 00 00 jmpq 0x28
21: 0f 00 2d 96 14 50 00 verw 0x501496(%rip) # 0x5014be
28: fb sti
29: f4 hlt
2a:* c3 retq <-- trapping instruction
2b: 90 nop
2c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
31: 55 push %rbp
32: 48 89 e5 mov %rsp,%rbp
35: 41 55 push %r13
37: 41 54 push %r12
39: 53 push %rbx
3a: e8 ed 46 61 ff callq 0xffffffffff61472c
3f: 65 gs
Code starting with the faulting instruction
===========================================
0: c3 retq
1: 90 nop
2: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
7: 55 push %rbp
8: 48 89 e5 mov %rsp,%rbp
b: 41 55 push %r13
d: 41 54 push %r12
f: 53 push %rbx
10: e8 ed 46 61 ff callq 0xffffffffff614702
15: 65 gs
[ 7128.854607] RSP: 0018:ffffb177992fbe70 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
[ 7128.863053] RAX: 0000000000023800 RBX: ffff90676cadbf28 RCX: 000000000003514a
[ 7128.871013] RDX: 000000000003514a RSI: 0000000000000000 RDI: ffffffffb06c6120
[ 7128.878974] RBP: ffffb177992fbe90 R08: 00000000000001ac R09: 0000000000000000
[ 7128.886936] R10: 0000000000020000 R11: 0000000000000002 R12: 0000000000000081
[ 7128.894895] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 7128.902858] ? default_idle (/build/linux-0OIRCA/linux-5.4.0/arch/x86/include/asm/paravirt.h:144 /build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/process.c:572)
[ 7128.907040] arch_cpu_idle (/build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/process.c:564)
[ 7128.911027] default_idle_call (/build/linux-0OIRCA/linux-5.4.0/kernel/sched/idle.c:97)
[ 7128.915403] do_idle (/build/linux-0OIRCA/linux-5.4.0/kernel/sched/idle.c:155 /build/linux-0OIRCA/linux-5.4.0/kernel/sched/idle.c:264)
[ 7128.919004] ? complete (/build/linux-0OIRCA/linux-5.4.0/kernel/sched/completion.c:38)
[ 7128.922699] cpu_startup_entry (/build/linux-0OIRCA/linux-5.4.0/kernel/sched/idle.c:355 (discriminator 1))
[ 7128.927074] start_secondary (/build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/smpboot.c:285)
[ 7128.931452] secondary_startup_64 (/build/linux-0OIRCA/linux-5.4.0/arch/x86/kernel/head_64.S:241)
[ 7128.936116] Modules linked in: nls_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua amd64_edac_mod edac_mce_amd kvm_amd kvm ipmi_ssif input_leds binfmt_misc mlx5_ib(OE) ib_uverbs(OE) ib_core(OE) ccp k10temp ipmi_si ipmi_devintf ipmi_msghandler mac_hid sch_fq_codel msr ramoops reed_solomon efi_pstore ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure ast crct10dif_pclmul crc32_pclmul drm_vram_helper ghash_clmulni_intel mlx5_core(OE) ttm aesni_intel crypto_simd drm_kms_helper pci_hyperv_intf mlxdevm(OE) cryptd syscopyarea sysfillrect auxiliary(OE) glue_helper igb tls sysimgblt uas hid_generic mpt3sas mlxfw(OE) psample dca raid_class usbhid fb_sys_fops scsi_transport_sas nvme i2c_algo_bit usb_storage hid drm mlx_compat(OE) nvme_core i2c_piix4
[ 7129.023659] CR2: 0000000000000050
[ 7129.027471] ---[ end trace 5d27e00102fa9701 ]---
[ 7129.052391] RIP: 0010:trace_event_raw_event_wbt_timer (/build/linux-0OIRCA/linux-5.4.0/include/linux/device.h:1345 (discriminator 5) /build/linux-0OIRCA/linux-5.4.0/include/trace/events/wbt.h:129 (discriminator 5))
[ 7129.059093] Code: 59 80 e5 02 0f 85 8f 00 00 00 4c 89 e6 ba 34 00 00 00 48 8d 7d a0 e8 b0 ab c9 ff 49 89 c4 48 85 c0 74 37 49 8b 87 b8 03 00 00 <48> 8b 70 50 48 85 f6 74 45 49 8d 7c 24 08 ba 20 00 00 00 e8 c9 12
All code
========
0: 59 pop %rcx
1: 80 e5 02 and $0x2,%ch
4: 0f 85 8f 00 00 00 jne 0x99
a: 4c 89 e6 mov %r12,%rsi
d: ba 34 00 00 00 mov $0x34,%edx
12: 48 8d 7d a0 lea -0x60(%rbp),%rdi
16: e8 b0 ab c9 ff callq 0xffffffffffc9abcb
1b: 49 89 c4 mov %rax,%r12
1e: 48 85 c0 test %rax,%rax
21: 74 37 je 0x5a
23: 49 8b 87 b8 03 00 00 mov 0x3b8(%r15),%rax
2a:* 48 8b 70 50 mov 0x50(%rax),%rsi <-- trapping instruction
2e: 48 85 f6 test %rsi,%rsi
31: 74 45 je 0x78
33: 49 8d 7c 24 08 lea 0x8(%r12),%rdi
38: ba 20 00 00 00 mov $0x20,%edx
3d: e8 .byte 0xe8
3e: c9 leaveq
3f: 12 .byte 0x12
Code starting with the faulting instruction
===========================================
0: 48 8b 70 50 mov 0x50(%rax),%rsi
4: 48 85 f6 test %rsi,%rsi
7: 74 45 je 0x4e
9: 49 8d 7c 24 08 lea 0x8(%r12),%rdi
e: ba 20 00 00 00 mov $0x20,%edx
13: e8 .byte 0xe8
14: c9 leaveq
15: 12 .byte 0x12
[ 7129.080046] RSP: 0018:ffffb1779b140da0 EFLAGS: 00010282
[ 7129.085875] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000080000100
[ 7129.093835] RDX: ffff8fe7ae7052f8 RSI: 0000000000000100 RDI: ffff8fe7ae7052f4
[ 7129.101795] RBP: ffffb1779b140e08 R08: ffff8fe7ae7052f4 R09: 0000000000000100
[ 7129.109757] R10: ffffd1777fdcb960 R11: 0000000000000000 R12: ffff8fe7ae7052f8
[ 7129.117718] R13: 00000000ffffffff R14: 0000000000000002 R15: ffff9047fe8f5000
[ 7129.125680] FS: 0000000000000000(0000) GS:ffff8fe80f840000(0000) knlGS:0000000000000000
[ 7129.134706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7129.141115] CR2: 0000000000000050 CR3: 000000cb2760a000 CR4: 0000000000340ee0
[ 7129.149075] Kernel panic - not syncing: Fatal exception in interrupt
[ 7129.158266] Kernel Offset: 0x2dc00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 7129.193426] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
--
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https://bugs.launchpad.net/bugs/2072972
Title:
ftrace:test.d--ftrace--func_traceonoff_triggers.tc in
ubuntu_kselftests_ftrace triggers kernel NULL pointer dereference on
node blanka
Status in ubuntu-kernel-tests:
New
Bug description:
Issue found on node "blanka" with Focal 5.4.0-190.210 in s2024.06.10
After some manual tests I noticed that this issue is not 100% reproducible:
* Focal 5.4.0-189.209 + -189 source failed with 5 out of 5 attempts
* Focal 5.4.0-190.210 + -190 source failed with 2 out of 5 attempts
* Focal 5.4.0-192.212 + -192 source failed with 3 out of 5 attempts
Despite with this high fail rate, I can't see this failure in our test
history all the way back to 2024.01.08 (except with 5.4.0-190.210),
perhaps we retest it and it has passed?
$ sudo ./ftracetest -v test.d/ftrace/func_traceonoff_triggers.tc
=== Ftrace unit tests ===
[1] ftrace - test for function traceon/off triggers
dmesg output:
[ 7112.186092] Scheduler tracepoints stat_sleep, stat_iowait, stat_blocked and stat_runtime require the kernel parameter schedstats=enable or kernel.sched_schedstats=1
[ 7128.566260] BUG: kernel NULL pointer dereference, address: 0000000000000050
[ 7128.574031] #PF: supervisor read access in kernel mode
[ 7128.579763] #PF: error_code(0x0000) - not-present page
[ 7128.585495] PGD 0 P4D 0
[ 7128.588320] Oops: 0000 [#1] SMP NOPTI
[ 7128.592405] CPU: 129 PID: 0 Comm: swapper/129 Tainted: G OE 5.4.0-190-generic #210-Ubuntu
[ 7128.602887] Hardware name: NVIDIA DGXA100 920-23687-2530-000/DGXA100, BIOS 1.25 08/31/2023
[ 7128.612119] RIP: 0010:trace_event_raw_event_wbt_timer+0x6f/0x100
[ 7128.618820] Code: 59 80 e5 02 0f 85 8f 00 00 00 4c 89 e6 ba 34 00 00 00 48 8d 7d a0 e8 b0 ab c9 ff 49 89 c4 48 85 c0 74 37 49 8b 87 b8 03 00 00 <48> 8b 70 50 48 85 f6 74 45 49 8d 7c 24 08 ba 20 00 00 00 e8 c9 12
[ 7128.639774] RSP: 0018:ffffb1779b140da0 EFLAGS: 00010282
[ 7128.645604] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000080000100
[ 7128.653565] RDX: ffff8fe7ae7052f8 RSI: 0000000000000100 RDI: ffff8fe7ae7052f4
[ 7128.661525] RBP: ffffb1779b140e08 R08: ffff8fe7ae7052f4 R09: 0000000000000100
[ 7128.669486] R10: ffffd1777fdcb960 R11: 0000000000000000 R12: ffff8fe7ae7052f8
[ 7128.677445] R13: 00000000ffffffff R14: 0000000000000002 R15: ffff9047fe8f5000
[ 7128.685409] FS: 0000000000000000(0000) GS:ffff8fe80f840000(0000) knlGS:0000000000000000
[ 7128.694437] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7128.700847] CR2: 0000000000000050 CR3: 000000cb2760a000 CR4: 0000000000340ee0
[ 7128.708809] Call Trace:
[ 7128.711535] <IRQ>
[ 7128.713782] ? show_regs.cold+0x1a/0x1f
[ 7128.718058] ? __die+0x90/0xd9
[ 7128.721467] ? no_context+0x196/0x380
[ 7128.725555] ? ring_buffer_lock_reserve+0x165/0x3d0
[ 7128.730996] ? ring_buffer_unlock_commit+0x27/0x130
[ 7128.736436] ? __bad_area_nosemaphore+0x50/0x1a0
[ 7128.741585] ? bad_area_nosemaphore+0x16/0x20
[ 7128.746445] ? do_user_addr_fault+0x267/0x450
[ 7128.751306] ? trace_event_raw_event_x86_exceptions+0x80/0xd0
[ 7128.757718] ? __do_page_fault+0x58/0x90
[ 7128.762092] ? do_page_fault+0x2c/0xe0
[ 7128.766276] ? page_fault+0x34/0x40
[ 7128.770167] ? trace_event_raw_event_wbt_timer+0x6f/0x100
[ 7128.776190] wb_timer_fn+0x1d6/0x3c0
[ 7128.780179] ? blk_mq_tag_update_depth+0x100/0x100
[ 7128.785522] blk_stat_timer_fn+0x13a/0x140
[ 7128.790094] call_timer_fn+0x32/0x130
[ 7128.794179] __run_timers.part.0+0x180/0x280
[ 7128.798945] ? trace_event_raw_event_softirq+0x5d/0xa0
[ 7128.804677] run_timer_softirq+0x2a/0x50
[ 7128.809053] __do_softirq+0xd1/0x2c1
[ 7128.813041] irq_exit+0xae/0xb0
[ 7128.816545] smp_apic_timer_interrupt+0x7b/0x140
[ 7128.821696] apic_timer_interrupt+0xf/0x20
[ 7128.826264] </IRQ>
[ 7128.828603] RIP: 0010:native_safe_halt+0xe/0x10
[ 7128.833655] Code: 7b ff ff ff eb bd 90 90 90 90 90 90 e9 07 00 00 00 0f 00 2d a6 14 50 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 96 14 50 00 fb f4 <c3> 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 53 e8 ed 46 61 ff 65
[ 7128.854607] RSP: 0018:ffffb177992fbe70 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
[ 7128.863053] RAX: 0000000000023800 RBX: ffff90676cadbf28 RCX: 000000000003514a
[ 7128.871013] RDX: 000000000003514a RSI: 0000000000000000 RDI: ffffffffb06c6120
[ 7128.878974] RBP: ffffb177992fbe90 R08: 00000000000001ac R09: 0000000000000000
[ 7128.886936] R10: 0000000000020000 R11: 0000000000000002 R12: 0000000000000081
[ 7128.894895] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 7128.902858] ? default_idle+0x20/0x140
[ 7128.907040] arch_cpu_idle+0x15/0x20
[ 7128.911027] default_idle_call+0x23/0x30
[ 7128.915403] do_idle+0x1fb/0x270
[ 7128.919004] ? complete+0x49/0x50
[ 7128.922699] cpu_startup_entry+0x20/0x30
[ 7128.927074] start_secondary+0x178/0x1d0
[ 7128.931452] secondary_startup_64+0xa4/0xb0
[ 7128.936116] Modules linked in: nls_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua amd64_edac_mod edac_mce_amd kvm_amd kvm ipmi_ssif input_leds binfmt_misc mlx5_ib(OE) ib_uverbs(OE) ib_core(OE) ccp k10temp ipmi_si ipmi_devintf ipmi_msghandler mac_hid sch_fq_codel msr ramoops reed_solomon efi_pstore ip_tables x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear ses enclosure ast crct10dif_pclmul crc32_pclmul drm_vram_helper ghash_clmulni_intel mlx5_core(OE) ttm aesni_intel crypto_simd drm_kms_helper pci_hyperv_intf mlxdevm(OE) cryptd syscopyarea sysfillrect auxiliary(OE) glue_helper igb tls sysimgblt uas hid_generic mpt3sas mlxfw(OE) psample dca raid_class usbhid fb_sys_fops scsi_transport_sas nvme i2c_algo_bit usb_storage hid drm mlx_compat(OE) nvme_core i2c_piix4
[ 7129.023659] CR2: 0000000000000050
[ 7129.027471] ---[ end trace 5d27e00102fa9701 ]---
[ 7129.052391] RIP: 0010:trace_event_raw_event_wbt_timer+0x6f/0x100
[ 7129.059093] Code: 59 80 e5 02 0f 85 8f 00 00 00 4c 89 e6 ba 34 00 00 00 48 8d 7d a0 e8 b0 ab c9 ff 49 89 c4 48 85 c0 74 37 49 8b 87 b8 03 00 00 <48> 8b 70 50 48 85 f6 74 45 49 8d 7c 24 08 ba 20 00 00 00 e8 c9 12
[ 7129.080046] RSP: 0018:ffffb1779b140da0 EFLAGS: 00010282
[ 7129.085875] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000080000100
[ 7129.093835] RDX: ffff8fe7ae7052f8 RSI: 0000000000000100 RDI: ffff8fe7ae7052f4
[ 7129.101795] RBP: ffffb1779b140e08 R08: ffff8fe7ae7052f4 R09: 0000000000000100
[ 7129.109757] R10: ffffd1777fdcb960 R11: 0000000000000000 R12: ffff8fe7ae7052f8
[ 7129.117718] R13: 00000000ffffffff R14: 0000000000000002 R15: ffff9047fe8f5000
[ 7129.125680] FS: 0000000000000000(0000) GS:ffff8fe80f840000(0000) knlGS:0000000000000000
[ 7129.134706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7129.141115] CR2: 0000000000000050 CR3: 000000cb2760a000 CR4: 0000000000340ee0
[ 7129.149075] Kernel panic - not syncing: Fatal exception in interrupt
[ 7129.158266] Kernel Offset: 0x2dc00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 7129.193426] ---[ end Kernel panic - not syncing: Fatal exception in interrupt ]---
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References
