rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=11417, q=95 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294957981-4294947479), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g11417 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:27064 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0x143f/0x4570 kernel/sched/core.c:6561
 schedule+0xbf/0x180 kernel/sched/core.c:6637
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 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: 4368 Comm: syz.4.144 Not tainted 6.1.102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:__lock_acquire+0x1234/0x1f80 kernel/locking/lockdep.c:5046
Code: 0f b6 04 10 84 c0 0f 85 53 0b 00 00 83 3d 73 8c 88 10 00 0f 84 b1 00 00 00 31 db 48 83 c3 40 48 89 d8 48 c1 e8 03 80 3c 10 00 <74> 08 48 89 df e8 72 9e 77 00 48 83 3b 00 0f 84 9a 03 00 00 4c 89
RSP: 0018:ffffc900001e0a80 EFLAGS: 00000046
RAX: 1ffffffff208675c RBX: ffffffff90433ae0 RCX: ffffffff816a84a0
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff90739228
RBP: b4f6a874e194f063 R08: dffffc0000000000 R09: fffffbfff20e7246
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880280b8ad8
R13: ffff8880280b8000 R14: 0000000000000001 R15: 1ffff11005017160
FS:  00005555570a0500(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006b000 CR3: 000000005bc17000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:170
 __run_hrtimer kernel/time/hrtimer.c:1690 [inline]
 __hrtimer_run_queues+0x6d3/0xe50 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: a1 9d f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 9e 55 bb f6 48 89 df e8 06 93 bc f6 e8 91 21 e2 f6 fb bf 01 00 00 00 <e8> 56 26 af f6 65 8b 05 77 32 53 75 85 c0 74 02 5b c3 e8 24 56 51
RSP: 0018:ffffc90007d0fb30 EFLAGS: 00000286
RAX: e5566fe66e721100 RBX: ffff888028386f00 RCX: ffffffff91f31103
RDX: dffffc0000000000 RSI: ffffffff8b0c0240 RDI: 0000000000000001
RBP: ffffc90007d0fc70 R08: dffffc0000000000 R09: ffffed1005070de1
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11005070e73
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888028387398
 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:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f9a51a38803
Code: 00 00 00 0f 1f 40 00 41 89 fb 44 8d 56 04 4c 8d 0d 12 98 2b 00 89 f0 4c 8d 05 09 78 2b 00 89 c2 81 e2 ff 1f 00 00 49 8b 0c d1 <48> 39 f1 74 28 48 85 c9 74 29 45 38 1c 10 75 23 83 c0 01 44 39 d0
RSP: 002b:00007ffcbae74478 EFLAGS: 00000206
RAX: 000000008a9f3600 RBX: 00007f9a52835720 RCX: ffffffff8a9f3600
RDX: 0000000000001600 RSI: ffffffff8a9f3600 RDI: 0000000000000019
RBP: 0000000000000000 R08: 00007f9a51cf0000 R09: 00007f9a51cf2000
R10: 000000008a9f3604 R11: 0000000000000019 R12: ffffffff8a9f3b5f
R13: 00007f9a51d060f0 R14: 0000000000000008 R15: 00000000000000d7
 </TASK>