rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=26777, q=36 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294991468-4294980966), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g26777 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: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:1674
 rcu_gp_kthread+0xa3/0x3a0 kernel/rcu/tree.c:1873
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </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: 8661 Comm: syz-executor.0 Not tainted 6.1.68-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:ksoftirqd_running kernel/softirq.c:95 [inline]
RIP: 0010:invoke_softirq kernel/softirq.c:435 [inline]
RIP: 0010:__irq_exit_rcu+0x131/0x240 kernel/softirq.c:650
Code: ea 8a e8 a2 f2 35 09 65 4c 8b 35 12 67 ae 7e 41 f6 c7 41 75 2f 4d 85 f6 74 2a 4d 8d 7e 18 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 <84> c0 0f 85 9a 00 00 00 41 83 3f 00 75 0c 4c 89 f7 e8 29 98 07 00
RSP: 0018:ffffc900001e0f40 EFLAGS: 00000806
RAX: 0000000000000000 RBX: ffff888021e38000 RCX: 0000000000010001
RDX: 1ffffffff1fd2408 RSI: ffffffff8aeaddc0 RDI: ffffffff8b3cf800
RBP: ffffc900001e0fe0 R08: ffffffff8fe92040 R09: ffffffff8fe92048
R10: ffffffff8fe92058 R11: ffffffff8fe92050 R12: dffffc0000000000
R13: 1ffff9200003c1e8 R14: ffff888012731dc0 R15: ffff888012731dd8
FS:  00007fdef6a256c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdef6a24f80 CR3: 000000007c6ff000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
 sysvec_apic_timer_interrupt+0x91/0xb0 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 b8 f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 8e 41 d6 f6 48 89 df e8 f6 7e d7 f6 e8 c1 1f fd f6 fb bf 01 00 00 00 <e8> d6 0d ca f6 65 8b 05 87 3f 6e 75 85 c0 74 02 5b c3 e8 c4 5d 6c
RSP: 0018:ffffc9000ab77b30 EFLAGS: 00000286
RAX: 2886cf3217df9500 RBX: ffff88804d8eca00 RCX: ffffffff91c87103
RDX: dffffc0000000000 RSI: ffffffff8aebe4c0 RDI: 0000000000000001
RBP: ffffc9000ab77c70 R08: dffffc0000000000 R09: ffffed1009b1d941
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff11009b1d9d3
R13: 000000001c000004 R14: 0000000000000021 R15: ffff88804d8ece98
 spin_unlock_irq include/linux/spinlock.h:400 [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: 0033:0x7fdef5c7cce7
Code: 14 25 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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
RSP: 002b:00007fdef6a25178 EFLAGS: 00000246
RAX: 00000000000000ca RBX: 00007fdef5d9bf88 RCX: 00007fdef5c7cce9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fdef5d9bf88
RBP: 00007fdef5d9bf80 R08: 00007fdef6a256c0 R09: 00007fdef6a256c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdef5d9bf8c
R13: 000000000000000b R14: 00007ffd34975cc0 R15: 00007ffd34975da8
 </TASK>