rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=103525, q=28)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4295063445-4295052943), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g103525 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:29312 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5073 [inline]
 __schedule+0xa9a/0x4940 kernel/sched/core.c:6382
 schedule+0xd2/0x1f0 kernel/sched/core.c:6454
 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881
 rcu_gp_fqs_loop+0x186/0x810 kernel/rcu/tree.c:1971
 rcu_gp_kthread+0x1de/0x320 kernel/rcu/tree.c:2144
 kthread+0x2e9/0x3a0 kernel/kthread.c:377
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3595 Comm: syz-fuzzer Tainted: G        W         5.17.0-syzkaller-02237-g1bc191051dca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:hrtimer_get_softexpires_tv64 include/linux/hrtimer.h:292 [inline]
RIP: 0010:__hrtimer_run_queues+0x37c/0xe50 kernel/time/hrtimer.c:1746
Code: 00 00 e8 a7 bc 10 00 48 8b 6c 24 78 e8 9d bc 10 00 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 6c 09 00 00 4c 8b 63 20 48 89 ee 4c 89 e7 e8 5f bf 10 00 49
RSP: 0018:ffffc90000fe8e40 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff888076f9ab40 RCX: 0000000000000000
RDX: 1ffff1100edf356c RSI: ffffffff81673883 RDI: ffff888076f9ab60
RBP: 1bc16d674ec8759b R08: ffff888076f9ab40 R09: 0000000000000000
R10: ffffffff841156b4 R11: 0000000000000000 R12: 0000000000000000
R13: ffff8880b9d2a700 R14: ffff8880b9d2a600 R15: 0000000000000001
FS:  0000000001829750(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe40f9c028 CR3: 000000001d482000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 000000000000d0eb
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 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+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1097
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638
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: 0f 1f 44 00 00 55 48 8b 74 24 08 48 89 fd 48 83 c7 18 e8 ce 66 ff f7 48 89 ef e8 16 e6 ff f7 e8 a1 07 21 f8 fb bf 01 00 00 00 <e8> 56 ff f2 f7 65 8b 05 cf 3b a5 76 85 c0 74 02 5d c3 e8 5b 10 a3
RSP: 0018:ffffc90002e37c90 EFLAGS: 00000246
RAX: 0000000000000007 RBX: ffff88802371ede0 RCX: 1ffffffff1b28271
RDX: 0000000000000000 RSI: ffffffff817e3bd1 RDI: 0000000000000001
RBP: ffff88802371ea80 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff817e3bb8 R11: 0000000000000000 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff88802371ee78 R15: 000000000000001b
 spin_unlock_irq include/linux/spinlock.h:399 [inline]
 get_signal+0x1fa9/0x28c0 kernel/signal.c:2906
 arch_do_signal_or_restart+0x2a9/0x1c40 arch/x86/kernel/signal.c:868
 handle_signal_work kernel/entry/common.c:149 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:187 [inline]
 exit_to_user_mode_prepare+0x17d/0x290 kernel/entry/common.c:222
 __syscall_exit_to_user_mode_work kernel/entry/common.c:304 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:315
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4668c1
Code: 89 44 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 4c 8b 54 24 18 4c 8b 44 24 20 44 8b 4c 24 28 b8 ca 00 00 00 <0f> 05 89 44 24 30 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc
RSP: 002b:00007ffd4e227fe0 EFLAGS: 00000286
RAX: 00000000000000ca RBX: 0000000000000000 RCX: 00000000004668c3
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000001829810
RBP: 00007ffd4e228028 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 00007ffd4e228098
R13: 0000000000000000 R14: 00000000018292e0 R15: 0000000000000000
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	e8 a7 bc 10 00       	callq  0x10bcae
   7:	48 8b 6c 24 78       	mov    0x78(%rsp),%rbp
   c:	e8 9d bc 10 00       	callq  0x10bcae
  11:	48 8d 7b 20          	lea    0x20(%rbx),%rdi
  15:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  1c:	fc ff df
  1f:	48 89 fa             	mov    %rdi,%rdx
  22:	48 c1 ea 03          	shr    $0x3,%rdx
  26:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
* 2a:	0f 85 6c 09 00 00    	jne    0x99c <-- trapping instruction
  30:	4c 8b 63 20          	mov    0x20(%rbx),%r12
  34:	48 89 ee             	mov    %rbp,%rsi
  37:	4c 89 e7             	mov    %r12,%rdi
  3a:	e8 5f bf 10 00       	callq  0x10bf9e
  3f:	49                   	rex.WB