rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 0-....: (1838 ticks this GP) idle=69d/1/0x4000000000000000 softirq=26906/26906 fqs=5150
(t=10503 jiffies g=36917 q=2135)
NMI backtrace for cpu 0
CPU: 0 PID: 13977 Comm: syz-executor.2 Not tainted 5.16.0-syzkaller-11423-ge2bcbd7769ee #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x25e/0x3f0 kernel/rcu/tree_stall.h:343
print_cpu_stall kernel/rcu/tree_stall.h:604 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:688 [inline]
rcu_pending kernel/rcu/tree.c:3919 [inline]
rcu_sched_clock_irq.cold+0x5c/0x759 kernel/rcu/tree.c:2617
update_process_times+0x16d/0x200 kernel/time/timer.c:1785
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:226
tick_sched_timer+0x1b0/0x2d0 kernel/time/tick-sched.c:1428
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103
sysvec_apic_timer_interrupt+0x40/0xc0 arch/x86/kernel/apic/apic.c:1097
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:194
Code: 74 24 10 e8 9a 30 0d f8 48 89 ef e8 52 a6 0d f8 81 e3 00 02 00 00 75 25 9c 58 f6 c4 02 75 2d 48 85 db 74 01 fb bf 01 00 00 00 93 61 00 f8 65 8b 05 ec 5f b2 76 85 c0 74 0a 5b 5d c3 e8 30 8b
RSP: 0018:ffffc90000007c08 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000200 RCX: 1ffffffff2004dce
RDX: 0000000000000000 RSI: 0000000000000102 RDI: 0000000000000001
RBP: ffff8880b9c28480 R08: 0000000000000001 R09: ffffffff8ffcfaef
R10: 0000000000000001 R11: 0000000000000000 R12: 00000001000031fd
R13: ffff8880b9c28480 R14: 0000000000000000 R15: 00000000ffffffff
__mod_timer+0x837/0xe30 kernel/time/timer.c:1065
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421
expire_timers kernel/time/timer.c:1466 [inline]
__run_timers.part.0+0x67c/0xa30 kernel/time/timer.c:1734
__run_timers kernel/time/timer.c:1715 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747
__do_softirq+0x29b/0x9c2 kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_irq_work+0x93/0xc0 arch/x86/kernel/irq_work.c:17
asm_sysvec_irq_work+0x12/0x20 arch/x86/include/asm/idtentry.h:664
RIP: 0010:finish_task_switch.isra.0+0x323/0xb80 kernel/sched/core.c:4866
Code: 03 0c fc 07 85 c0 75 02 0f 0b 48 85 db 0f 85 25 01 00 00 4c 89 f7 e8 fc f7 ff ff e8 e7 7e 2d 00 fb 65 48 8b 1c 25 00 70 02 00 <48> 8d bb 80 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1
RSP: 0018:ffffc90002f3f9d8 EFLAGS: 00000206
RAX: 00000000000004eb RBX: ffff888017661d00 RCX: 1ffffffff1ffc9e6
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc90002f3fa20 R08: 0000000000000001 R09: ffffffff8ffcfa3f
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880b9c3a958
R13: ffff88804befd700 R14: ffff8880b9c39c00 R15: ffff8880b9c3a638
context_switch kernel/sched/core.c:4989 [inline]
__schedule+0xaba/0x4e90 kernel/sched/core.c:6296
preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6711
irqentry_exit+0x31/0x80 kernel/entry/common.c:425
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x1c/0x60 kernel/kcov.c:200
Code: be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 65 8b 05 f9 19 8a 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 00 70 02 00 00 01 ff 00 74 0e 85 c9 74 35 8b 82 a4 15 00 00 85 c0 74 2b 8b
RSP: 0018:ffffc90002f3fc38 EFLAGS: 00000246
RAX: 0000000080000000 RBX: 000000000000023c RCX: 0000000000000000
RDX: ffff888017661d00 RSI: ffffffff8180490d RDI: 0000000000000003
RBP: ffffffff8bde4840 R08: 000000000000023c R09: ffffc90002f3fb7f
R10: ffffffff81804960 R11: 0000000000000001 R12: dffffc0000000000
R13: 00000000000000e0 R14: ffff88807bee8bc0 R15: ffffffff8bc54ca0
perf_trace_init+0x8d/0x2f0 kernel/trace/trace_event_perf.c:224
perf_tp_event_init+0xa2/0x120 kernel/events/core.c:9815
perf_try_init_event+0x12a/0x560 kernel/events/core.c:11273
perf_init_event kernel/events/core.c:11337 [inline]
perf_event_alloc.part.0+0xf21/0x3b70 kernel/events/core.c:11628
perf_event_alloc kernel/events/core.c:12051 [inline]
__do_sys_perf_event_open+0x4ae/0x3130 kernel/events/core.c:12149
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f50a7804059
Code: ff ff c3 66 2e 0f 1f 84 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f50a6179168 EFLAGS: 00000246 ORIG_RAX: 000000000000012a
RAX: ffffffffffffffda RBX: 00007f50a7916f60 RCX: 00007f50a7804059
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080
RBP: 00007f50a785e08d R08: 0000000000000000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccd319eaf R14: 00007f50a6179300 R15: 0000000000022000
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 24 10 and $0x10,%al
2: e8 9a 30 0d f8 callq 0xf80d30a1
7: 48 89 ef mov %rbp,%rdi
a: e8 52 a6 0d f8 callq 0xf80da661
f: 81 e3 00 02 00 00 and $0x200,%ebx
15: 75 25 jne 0x3c
17: 9c pushfq
18: 58 pop %rax
19: f6 c4 02 test $0x2,%ah
1c: 75 2d jne 0x4b
1e: 48 85 db test %rbx,%rbx
21: 74 01 je 0x24
23: fb sti
24: bf 01 00 00 00 mov $0x1,%edi
* 29: e8 93 61 00 f8 callq 0xf80061c1 <-- trapping instruction
2e: 65 8b 05 ec 5f b2 76 mov %gs:0x76b25fec(%rip),%eax # 0x76b26021
35: 85 c0 test %eax,%eax
37: 74 0a je 0x43
39: 5b pop %rbx
3a: 5d pop %rbp
3b: c3 retq
3c: e8 .byte 0xe8
3d: 30 .byte 0x30
3e: 8b .byte 0x8b