rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=6141, q=15 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294966677-4294956174), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g6141 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:25528 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: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:308
 </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: 3593 Comm: syz-executor290 Not tainted 6.1.90-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:irq_exit_rcu+0x0/0x20 kernel/softirq.c:662
Code: 80 c1 03 38 c1 7c 88 48 89 df e8 1b e6 8d 00 e9 7b ff ff ff 66 0f 1f 44 00 00 e8 bb ae 36 09 e9 16 ff ff ff 66 0f 1f 44 00 00 <e8> 1b 00 00 00 48 c7 c7 a0 fb ea 8a e8 7f b2 36 09 65 ff 0d ac 56
RSP: 0018:ffffc90000007ff0 EFLAGS: 00000082
RAX: 0000000000000000 RBX: ffffc90003e1fa88 RCX: ffffffff813a1811
RDX: 0000000000000000 RSI: ffffffff8ae8e780 RDI: ffffffff8b3d43e0
RBP: 0000000000000000 R08: dffffc0000000000 R09: fffffbfff1ce7046
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00005555555b63c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdc43bd4c0 CR3: 00000000196ca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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: c1 bc f5 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 fe 8b d5 f6 48 89 df e8 66 c9 d6 f6 e8 31 54 fc f6 fb bf 01 00 00 00 <e8> 56 58 c9 f6 65 8b 05 c7 73 6d 75 85 c0 74 02 5b c3 e8 f4 98 6b
RSP: 0018:ffffc90003e1fb30 EFLAGS: 00000286
RAX: ff3b830cfd931300 RBX: ffff888074da1280 RCX: ffffffff91c93103
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: 0000000000000001
RBP: ffffc90003e1fc70 R08: dffffc0000000000 R09: ffffed100e9b4251
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff1100e9b42e3
R13: 000000001c000004 R14: 0000000000000021 R15: ffff888074da1718
 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: 0033:0x7efdc43a5e79
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:00007ffe2e6cf9c8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007efdc43a5e79
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00005555555b6370
R13: 0000000000000003 R14: 00007ffe2e6cfa40 R15: 00007ffe2e6cfa30
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.473 msecs