rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 	0-....: (1 GPs behind) idle=477/1/0x4000000000000000 softirq=148782/148783 fqs=5209 
	(t=10502 jiffies g=244233 q=4723)
NMI backtrace for cpu 0
CPU: 0 PID: 19925 Comm: syz-executor.0 Not tainted 5.16.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1dc/0x2d8 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
 rcu_dump_cpu_stacks+0x22d/0x390 kernel/rcu/tree_stall.h:343
 print_cpu_stall kernel/rcu/tree_stall.h:627 [inline]
 check_cpu_stall kernel/rcu/tree_stall.h:711 [inline]
 rcu_pending kernel/rcu/tree.c:3878 [inline]
 rcu_sched_clock_irq+0x1e33/0x2bc0 kernel/rcu/tree.c:2597
 update_process_times+0x197/0x200 kernel/time/timer.c:1785
 tick_sched_handle kernel/time/tick-sched.c:226 [inline]
 tick_sched_timer+0x27d/0x420 kernel/time/tick-sched.c:1428
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x4cb/0xa60 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x3b3/0x1040 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline]
 __sysvec_apic_timer_interrupt+0xf9/0x270 arch/x86/kernel/apic/apic.c:1103
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1097
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: d1 52 fd ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 2e f7 4f f7 48 89 df e8 36 a8 51 f7 e8 81 02 75 f7 fb bf 01 00 00 00 <e8> 96 00 44 f7 65 8b 05 b7 49 ec 75 85 c0 74 02 5b c3 e8 3c 31 ea
RSP: 0018:ffffc90000007cb0 EFLAGS: 00000282
RAX: fb511daee38d7c00 RBX: ffff8880b9a280c0 RCX: ffffffff90bb8903
RDX: dffffc0000000000 RSI: 0000000000000102 RDI: 0000000000000001
RBP: ffffc90000007e10 R08: ffffffff818b28b0 R09: ffffed1017345019
R10: ffffed1017345019 R11: 0000000000000000 R12: ffffffff88405cf0
R13: dffffc0000000000 R14: ffff8880b9a28100 R15: ffff88808df5b410
 expire_timers kernel/time/timer.c:1465 [inline]
 __run_timers+0x70a/0x910 kernel/time/timer.c:1734
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1747
 __do_softirq+0x392/0x7a3 kernel/softirq.c:558
 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:637
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:finish_lock_switch+0x1c5/0x350 kernel/sched/core.c:4733
Code: be ff ff ff ff e8 cb 1a b7 08 85 c0 74 37 4d 85 e4 75 58 0f 1f 44 00 00 4c 89 ff e8 e5 c3 b9 08 e8 f0 c7 2e 00 fb 48 83 c4 10 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 0f 0b 4d 85 e4 0f 85 4a ff ff ff
RSP: 0018:ffffc90004d8f828 EFLAGS: 00000286
RAX: fb511daee38d7c00 RBX: 1ffff11017347410 RCX: ffffffff90bb8903
RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff8880b9a3a080 R08: ffffffff818b28b0 R09: ffffed10173472b9
R10: ffffed10173472b9 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880b9a3a318 R14: dffffc0000000000 R15: ffff8880b9a395c0
 finish_task_switch+0x140/0x630 kernel/sched/core.c:4850
 context_switch kernel/sched/core.c:4975 [inline]
 __schedule+0xb7a/0x1460 kernel/sched/core.c:6253
 preempt_schedule_common kernel/sched/core.c:6419 [inline]
 preempt_schedule+0x14d/0x190 kernel/sched/core.c:6444
 preempt_schedule_thunk+0x16/0x18
 try_to_wake_up+0x793/0xd20 kernel/sched/core.c:4125
 wake_up_process kernel/sched/core.c:4203 [inline]
 wake_up_q+0x9a/0xf0 kernel/sched/core.c:953
 futex_wake+0x50f/0x5b0 kernel/futex/waitwake.c:184
 do_futex+0x367/0x560 kernel/futex/syscalls.c:127
 __do_sys_futex kernel/futex/syscalls.c:199 [inline]
 __se_sys_futex+0x401/0x4b0 kernel/futex/syscalls.c:180
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc218497e99
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc216e0d218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fc2185aaf68 RCX: 00007fc218497e99
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc2185aaf6c
RBP: 00007fc2185aaf60 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000246 R12: 00007fc2185aaf6c
R13: 00007fff5595b24f R14: 00007fc216e0d300 R15: 0000000000022000
 </TASK>
----------------
Code disassembly (best guess):
   0:	d1 52 fd             	rcll   -0x3(%rdx)
   3:	ff 90 53 48 89 fb    	callq  *-0x476b7ad(%rax)
   9:	48 83 c7 18          	add    $0x18,%rdi
   d:	48 8b 74 24 08       	mov    0x8(%rsp),%rsi
  12:	e8 2e f7 4f f7       	callq  0xf74ff745
  17:	48 89 df             	mov    %rbx,%rdi
  1a:	e8 36 a8 51 f7       	callq  0xf751a855
  1f:	e8 81 02 75 f7       	callq  0xf77502a5
  24:	fb                   	sti
  25:	bf 01 00 00 00       	mov    $0x1,%edi
* 2a:	e8 96 00 44 f7       	callq  0xf74400c5 <-- trapping instruction
  2f:	65 8b 05 b7 49 ec 75 	mov    %gs:0x75ec49b7(%rip),%eax        # 0x75ec49ed
  36:	85 c0                	test   %eax,%eax
  38:	74 02                	je     0x3c
  3a:	5b                   	pop    %rbx
  3b:	c3                   	retq
  3c:	e8                   	.byte 0xe8
  3d:	3c 31                	cmp    $0x31,%al
  3f:	ea                   	(bad)