rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=5637, q=9 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10499 (4294967114-4294956615), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g5637 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:27032 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1935
 rcu_gp_fqs_loop+0x2d2/0x1120 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:307
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3589 Comm: syz-executor100 Not tainted 6.1.82-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:rb_next+0xca/0xe0 lib/rbtree.c:517
Code: 38 00 74 08 4c 89 e7 e8 a4 b5 5e f7 49 8b 1c 24 48 83 e3 fc 0f 84 79 ff ff ff 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 38 00 <74> c1 e8 7f b5 5e f7 eb ba 49 89 de e9 58 ff ff ff 0f 1f 44 00 00
RSP: 0018:ffffc90000007d00 EFLAGS: 00000046
RAX: 1ffff110173055b9 RBX: ffff8880b982adc0 RCX: ffff88807e0c1dc0
RDX: 0000000080010002 RSI: ffff888027be60b0 RDI: ffff8880b982adc8
RBP: dffffc0000000000 R08: ffffffff8a83bb54 R09: fffffbfff1ce6c56
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888027be60b0
R13: ffff888027be60b0 R14: 0000000000000000 R15: dffffc0000000000
FS:  00005555564653c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006b000 CR3: 000000007c7d9000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 rb_erase_cached include/linux/rbtree.h:124 [inline]
 timerqueue_del+0x85/0xf0 lib/timerqueue.c:57
 __remove_hrtimer kernel/time/hrtimer.c:1117 [inline]
 __run_hrtimer kernel/time/hrtimer.c:1666 [inline]
 __hrtimer_run_queues+0x409/0xe50 kernel/time/hrtimer.c:1750
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1812
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
 __sysvec_apic_timer_interrupt+0x156/0x580 arch/x86/kernel/apic/apic.c:1112
 sysvec_apic_timer_interrupt+0x8c/0xb0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
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: 41 bd f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 9e ac d6 f6 48 89 df e8 06 ea d7 f6 e8 e1 78 fd f6 fb bf 01 00 00 00 <e8> 76 78 ca f6 65 8b 05 37 a4 6e 75 85 c0 74 02 5b c3 e8 74 c2 6c
RSP: 0018:ffffc90003d3fb30 EFLAGS: 00000286
RAX: 028c0cd3013c2900 RBX: ffff888027b9d340 RCX: ffffffff91c8e103
RDX: dffffc0000000000 RSI: ffffffff8aebee40 RDI: 0000000000000001
RBP: ffffc90003d3fc70 R08: dffffc0000000000 R09: ffffed1004f73a69
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11004f73afb
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888027b9d7d8
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x154b/0x17d0 kernel/signal.c:2865
 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f236519ee79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffcd326ab08 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f236519ee79
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000555556465370
R13: 0000000000000002 R14: 00007ffcd326ab80 R15: 00007ffcd326ab70
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.622 msecs