rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=7833, q=72 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294955509-4294945009), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g7833 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:28112 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x107f/0x4030 kernel/sched/core.c:6562
 schedule+0xb9/0x180 kernel/sched/core.c:6638
 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2168
 rcu_gp_fqs_loop+0x303/0x1350 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0x99/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x29d/0x330 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4304 Comm: syz-executor362 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:arch_irqs_disabled_flags arch/x86/include/asm/irqflags.h:125 [inline]
RIP: 0010:syscall_exit_to_user_mode_prepare+0x25/0xc0 kernel/entry/common.c:273
Code: 0f 0b eb c4 90 55 41 57 41 56 53 50 65 48 8b 05 f1 83 93 7e 48 8b 58 08 48 63 77 78 66 90 48 c7 04 24 00 00 00 00 9c 8f 04 24 <f7> 04 24 00 02 00 00 74 10 f6 c3 76 75 2a 48 83 c4 08 5b 41 5e 41
RSP: 0018:ffffc900042d7ee0 EFLAGS: 00000292
RAX: ffff88802cfc8000 RBX: 0000000000000000 RCX: 2d184f3a28d9dc00
RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffffc900042d7f58
RBP: ffffc900042d7f48 R08: ffffffff8e200f6f R09: 1ffffffff1c401ed
R10: dffffc0000000000 R11: fffffbfff1c401ee R12: 0000000000000000
R13: 0000000000000000 R14: ffffc900042d7f58 R15: 0000000000000027
FS:  000055556f416480(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000058 CR3: 0000000075eb5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline]
 syscall_exit_to_user_mode+0x9/0x40 kernel/entry/common.c:303
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f5d6fce7137
Code: 0a 08 00 ba 55 00 00 00 48 8d 35 47 d6 07 00 48 8d 3d 57 d6 07 00 e8 e8 da fe ff e8 33 21 00 00 0f 1f 00 b8 27 00 00 00 0f 05 <c3> 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 66 2e 0f 1f 84
RSP: 002b:00007fff4798b608 EFLAGS: 00000202 ORIG_RAX: 0000000000000027
RAX: 0000000000000003 RBX: 00007fff4798b770 RCX: 00007f5d6fce7137
RDX: 00007fff4798b640 RSI: 00007fff4798b770 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007f5d6fd660b2
R13: 00007f5d6fd6412a R14: 00007fff4798bc60 R15: 0000000000000000
 </TASK>