watchdog: BUG: soft lockup - CPU#0 stuck for 225s! [syz.5.262:1794]
Modules linked in:
CPU: 0 PID: 1794 Comm: syz.5.262 Not tainted 5.15.167-syzkaller-android13-5.15.167_r00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__unwind_start+0x1e9/0x3a0 arch/x86/kernel/unwind_frame.c:397
Code: 08 00 74 08 48 89 df e8 65 9a 7d 00 48 8b 1b 48 83 c3 28 eb 03 48 89 eb 49 8d 4f 20 48 89 df 4c 89 ee 4c 89 fa e8 77 c0 f7 ff <4c> 89 ff 48 89 de e8 7c f6 ff ff 4c 89 f9 48 c1 e9 03 48 b8 00 00
RSP: 0000:ffffc90000006f80 EFLAGS: 00000286
RAX: 0000000000000000 RBX: ffffc90000006ff0 RCX: 0000000000000002
RDX: ffffc90000008000 RSI: ffffffff86207c69 RDI: ffffffff85a339e0
RBP: ffffc90000006ff0 R08: dffffc0000000000 R09: ffffc90000007000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff888110e0e2c0 R14: ffffc90000007000 R15: ffffc90000007000
FS:  00007f706f9296c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f706f8e7d58 CR3: 000000012757f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <IRQ>
 unwind_start arch/x86/include/asm/unwind.h:60 [inline]
 arch_stack_walk+0xdb/0x140 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:139
 __set_page_owner+0x28/0x2e0 mm/page_owner.c:200
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2605
 prep_new_page+0x1b/0x110 mm/page_alloc.c:2611
 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4485
 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5779
 allocate_slab mm/slub.c:1932 [inline]
 new_slab+0x9a/0x4e0 mm/slub.c:1995
 ___slab_alloc+0x39e/0x830 mm/slub.c:3028
 __slab_alloc+0x4a/0x90 mm/slub.c:3115
 slab_alloc_node mm/slub.c:3206 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0x134/0x200 mm/slub.c:3253
 dst_alloc+0x164/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:342 [inline]
 icmp6_dst_alloc+0xfc/0x560 net/ipv6/route.c:3275
 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:491
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:schedule_debug kernel/sched/core.c:5717 [inline]
RIP: 0010:__schedule+0x12a/0x1590 kernel/sched/core.c:6402
Code: 74 08 48 89 df e8 76 97 cd fc 48 8b 1b 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 5d 97 cd fc 48 81 3b 9d 6e ac 57 <0f> 85 87 0f 00 00 65 8b 05 71 5b 1d 7b 25 ff ff ff 7f 83 f8 01 0f
RSP: 0000:ffffc90000f0fc00 EFLAGS: 00000246
RAX: 1ffff920001e1000 RBX: ffffc90000f08000 RCX: 1ffff920001e1f8c
RDX: 1ffffffff0e99c00 RSI: ffffffff85a339c0 RDI: ffffffff85a33980
RBP: ffffc90000f0fcf0 R08: ffffffff874ce000 R09: ffffffff874ce008
R10: ffffffff874ce018 R11: ffffffff874ce010 R12: 0000000000000001
R13: dffffc0000000000 R14: ffff888110e0e2c0 R15: ffff8881f7000000
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:207 [inline]
RIP: 0010:test_bit include/asm-generic/bitops/instrumented-non-atomic.h:135 [inline]
RIP: 0010:test_ti_thread_flag include/linux/thread_info.h:118 [inline]
RIP: 0010:need_resched include/linux/sched.h:2155 [inline]
RIP: 0010:schedule+0x104/0x1e0 kernel/sched/core.c:6597
Code: 20 00 74 08 4c 89 ff e8 0a 82 cd fc 49 8b 07 4c 39 f8 74 0d 4c 89 f7 be 01 00 00 00 e8 65 d6 6a fd 4c 89 eb 48 c1 eb 03 eb 0a <49> f7 45 00 08 00 00 00 74 39 bf 01 00 00 00 e8 98 34 67 fc 31 ff
RSP: 0000:ffffc90000f0fe98 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 1ffff110221c1c58 RCX: ffffffff84e527a6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888110e0e2c0
RBP: ffffc90000f0fec0 R08: dffffc0000000000 R09: ffffed10221c1c59
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: ffff888110e0e2c0 R14: ffff888110e0e2d8 R15: ffff888110e0e2c0
 exit_to_user_mode_loop+0x4d/0xe0 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7f7070cb0721
Code: 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 48 3d 01 f0 ff ff 73 01 <c3> 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:00007f706f9290e8 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007f7070e67f88 RCX: 00007f7070cb0719
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7070e67f88
RBP: 00007f7070e67f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7070e67f8c
R13: 0000000000000000 R14: 00007ffd9a306b90 R15: 00007ffd9a306c78
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1265 Comm: syz.4.184 Not tainted 5.15.167-syzkaller-android13-5.15.167_r00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:perf_swevent_get_recursion_context kernel/events/core.c:9563 [inline]
RIP: 0010:perf_pending_event+0x19/0x740 kernel/events/core.c:6652
Code: 5d 00 cc ff 5d c3 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 10 49 89 fc e8 67 25 db ff <e8> e2 9c 4b 03 89 c3 41 89 c6 bf 08 00 00 00 89 c6 e8 01 29 db ff
RSP: 0018:ffffc900001d0a18 EFLAGS: 00000006
RAX: ffffffff81953219 RBX: ffff8881261690f0 RCX: ffff888119eb0000
RDX: 0000000000010100 RSI: 0000000000000004 RDI: ffff8881261690f0
RBP: ffffc900001d0a50 R08: dffffc0000000000 R09: ffffed1024c2d220
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881261690f0
R13: ffff8881261690f8 R14: dffffc0000000000 R15: 0000000000000022
FS:  0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1103be1018 CR3: 000000015218a000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irq_work_single kernel/irq_work.c:155 [inline]
 irq_work_run_list+0x1c2/0x290 kernel/irq_work.c:177
 irq_work_run+0x69/0xf0 kernel/irq_work.c:186
 __sysvec_irq_work+0x63/0x1b0 arch/x86/kernel/irq_work.c:22
 sysvec_irq_work+0x41/0xb0 arch/x86/kernel/irq_work.c:17
 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:try_to_wake_up+0x8e/0x1160 kernel/sched/core.c:4090
Code: f1 f1 00 f2 f2 f2 4b 89 04 3c 66 43 c7 44 3c 09 f3 f3 43 c6 44 3c 0b f3 bf 01 00 00 00 e8 1a 58 ff ff 65 48 8b 05 72 69 b5 7e <48> 39 d8 48 89 1c 24 44 89 74 24 0c 0f 84 2c 01 00 00 48 81 c3 ec
RSP: 0018:ffffc900001d0c40 EFLAGS: 00000202
RAX: ffff888119eb0000 RBX: ffff8881001de2c0 RCX: ffffffff874d5f03
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffffc900001d0d28 R08: ffffffff8160a01f R09: 0000000000000003
R10: fffff5200003a1a4 R11: dffffc0000000001 R12: 1ffff9200003a190
R13: 0000000000000003 R14: 0000000000000000 R15: dffffc0000000000
 wake_up_process+0x10/0x20 kernel/sched/core.c:4322
 process_timeout+0x38/0x40 kernel/time/timer.c:1847
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 b1 6c 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 e9 b3 99 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0018:ffffc90000fef080 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888119eb0b38 RCX: 0000000000000002
RDX: 0000000040000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000fef0d0 R08: ffffffff8191f919 R09: fffffbfff0e53363
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f71378c0
R13: ffff888119eb0000 R14: 1ffff1103ee27081 R15: ffff8881f7138408
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 preempt_schedule_irq+0xc7/0x140 kernel/sched/core.c:6916
 irqentry_exit_cond_resched+0x2a/0x30 kernel/entry/common.c:398
 irqentry_exit+0x30/0x40 kernel/entry/common.c:432
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:arch_stack_walk+0xeb/0x140 arch/x86/kernel/stacktrace.c:26
Code: 0e 00 00 eb 03 48 89 e9 48 8d bd 70 ff ff ff 4c 89 e6 4c 89 fa e8 05 9d 05 00 83 bd 70 ff ff ff 00 74 32 48 8d 9d 70 ff ff ff <48> 89 df e8 1d 8d 05 00 48 85 c0 74 1e 4c 89 f7 48 89 c6 41 ff d5
RSP: 0018:ffffc90000fef360 EFLAGS: 00000202
RAX: 0000000000fef301 RBX: ffffc90000fef360 RCX: 0000000000fef301
RDX: 1ffff920001fde6e RSI: ffffc90000fefef8 RDI: ffffc90000fef3b8
RBP: ffffc90000fef3f0 R08: ffffc90000fef448 R09: 000000000000000e
R10: ffffc90000fef450 R11: dffffc0000000001 R12: ffff888119eb0000
R13: ffffffff815f77f0 R14: ffffc90000fef440 R15: 0000000000000000
 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122
 save_stack+0xf6/0x1e0 mm/page_owner.c:139
 __reset_page_owner+0x36/0x190 mm/page_owner.c:156
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1472 [inline]
 free_pcp_prepare mm/page_alloc.c:1544 [inline]
 free_unref_page_prepare+0x7c8/0x7d0 mm/page_alloc.c:3534
 free_unref_page+0xe8/0x750 mm/page_alloc.c:3616
 free_the_page mm/page_alloc.c:805 [inline]
 __free_pages+0x61/0xf0 mm/page_alloc.c:5855
 __vunmap+0x7bc/0x8f0 mm/vmalloc.c:2652
 __vfree mm/vmalloc.c:2700 [inline]
 vfree+0x7f/0xb0 mm/vmalloc.c:2731
 kcov_put kernel/kcov.c:417 [inline]
 kcov_close+0x2b/0x50 kernel/kcov.c:519
 __fput+0x228/0x8c0 fs/file_table.c:280
 ____fput+0x15/0x20 fs/file_table.c:308
 task_work_run+0x129/0x190 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0xc48/0x2ca0 kernel/exit.c:880
 do_group_exit+0x141/0x310 kernel/exit.c:1002
 get_signal+0x7a3/0x1630 kernel/signal.c:2904
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fb16875b719
Code: Unable to access opcode bytes at RIP 0x7fb16875b6ef.
RSP: 002b:00007fb1673920e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fb168913138 RCX: 00007fb16875b719
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb16891313c
RBP: 00007fb168913130 R08: 00007ffc495cf0b0 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007fb16891313c
R13: 0000000000000000 R14: 00007ffc495ca930 R15: 00007ffc495caa18
 </TASK>
NMI backtrace for cpu 0
CPU: 0 PID: 1794 Comm: syz.5.262 Tainted: G             L    5.15.167-syzkaller-android13-5.15.167_r00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:235 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:156 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:263 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:208
Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 eb d9 89 f6 31 d2 e8 ca 03 52 01 5d c3 0f 1f 84 00 00 00 00
RSP: 0000:ffffc900000075f8 EFLAGS: 00000046
RAX: 0000000000000119 RBX: ffffffff862619d8 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 0000000000000119 RDI: 0000000000000838
RBP: ffffc900000075f8 R08: ffffffff8163c48b R09: ffffffff8163c37d
R10: 0000000000000002 R11: ffff888110e0e2c0 R12: 0000000000000020
R13: dffffc0000000000 R14: 0000000000000119 R15: dffffc0000000000
FS:  00007f706f9296c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005614654200f8 CR3: 000000012757f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 apic_write arch/x86/include/asm/apic.h:395 [inline]
 lapic_next_event+0x5f/0x70 arch/x86/kernel/apic/apic.c:468
 clockevents_program_event+0x1c1/0x300 kernel/time/clockevents.c:334
 tick_program_event+0x9f/0x120 kernel/time/tick-oneshot.c:44
 hrtimer_interrupt+0x625/0xaa0 kernel/time/hrtimer.c:1826
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1085 [inline]
 __sysvec_apic_timer_interrupt+0xfd/0x3c0 arch/x86/kernel/apic/apic.c:1102
 sysvec_apic_timer_interrupt+0x44/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:slab_pre_alloc_hook+0x3a/0xd0 mm/slab.h:525
Code: 49 89 d4 48 89 75 d0 49 89 fe 23 1d c8 a5 77 05 f7 c3 00 04 00 00 74 05 2e 2e 2e 31 c0 4c 89 f7 89 de e8 d9 c6 f1 ff 45 31 ff <85> c0 74 12 4c 89 f8 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3
RSP: 0000:ffffc900000078c0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000a20 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 00000000000000f0 RDI: ffffffff86c56980
RBP: ffffc900000078f0 R08: ffffffff83eb1122 R09: ffffed102260806f
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffff8881003ef200 R15: 0000000000000000
 slab_alloc_node mm/slub.c:3154 [inline]
 slab_alloc mm/slub.c:3248 [inline]
 kmem_cache_alloc+0x44/0x200 mm/slub.c:3253
 dst_alloc+0x164/0x1e0 net/core/dst.c:92
 ip6_dst_alloc net/ipv6/route.c:342 [inline]
 icmp6_dst_alloc+0xfc/0x560 net/ipv6/route.c:3275
 ndisc_send_skb+0x27f/0xc90 net/ipv6/ndisc.c:491
 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:705
 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3979
 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1457
 expire_timers kernel/time/timer.c:1502 [inline]
 __run_timers+0x72a/0xa10 kernel/time/timer.c:1773
 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1786
 handle_softirqs+0x25e/0x5c0 kernel/softirq.c:565
 __do_softirq kernel/softirq.c:603 [inline]
 invoke_softirq kernel/softirq.c:425 [inline]
 __irq_exit_rcu+0x52/0xf0 kernel/softirq.c:652
 irq_exit_rcu+0x9/0x10 kernel/softirq.c:664
 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024
Code: 74 08 4c 89 ff e8 b1 6c 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 e9 b3 99 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30
RSP: 0000:ffffc90000f0f940 EFLAGS: 00000282
RAX: 0000000080000001 RBX: ffff888110e0edf8 RCX: 0000000000000002
RDX: 0000000040000002 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffc90000f0f990 R08: ffffffff8191f919 R09: fffffbfff0e53363
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0
R13: ffff888110e0e2c0 R14: 1ffff1103ee07081 R15: ffff8881f7038408
 context_switch kernel/sched/core.c:5155 [inline]
 __schedule+0xcd4/0x1590 kernel/sched/core.c:6512
 preempt_schedule_common+0x9b/0xf0 kernel/sched/core.c:6688
 preempt_schedule+0xd9/0xe0 kernel/sched/core.c:6713
 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:34
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
 _raw_spin_unlock_irq+0x61/0x70 kernel/locking/spinlock.c:202
 spin_unlock_irq include/linux/spinlock.h:413 [inline]
 get_signal+0x3ff/0x1630 kernel/signal.c:2869
 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:214
 irqentry_exit_to_user_mode+0x9/0x10 kernel/entry/common.c:320
 irqentry_exit+0x12/0x40 kernel/entry/common.c:411
 sysvec_apic_timer_interrupt+0x55/0xc0 arch/x86/kernel/apic/apic.c:1096
 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0033:0x7f7070cb0721
Code: 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 48 3d 01 f0 ff ff 73 01 <c3> 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f
RSP: 002b:00007f706f9290e8 EFLAGS: 00000217
RAX: 0000000000000000 RBX: 00007f7070e67f88 RCX: 00007f7070cb0719
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f7070e67f88
RBP: 00007f7070e67f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7070e67f8c
R13: 0000000000000000 R14: 00007ffd9a306b90 R15: 00007ffd9a306c78
 </TASK>