rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 1, t=10502 jiffies, g=14441, q=602)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294960134-4294949632), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g14441 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:27848 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0x11bb/0x4390 kernel/sched/core.c:6395
 schedule+0x11b/0x1e0 kernel/sched/core.c:6478
 schedule_timeout+0x15c/0x280 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x29e/0x11b0 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0x98/0x350 kernel/rcu/tree.c:2145
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </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: 4969 Comm: syz.4.146 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:trace_hardirqs_off_finish+0xd2/0x1f0 kernel/trace/trace_preemptirq.c:70
Code: 92 c3 40 0f 92 c6 bf 02 00 00 00 e8 78 e1 f9 ff 84 db 74 10 e8 9f c3 e5 ff 84 c0 74 1c e8 06 df f9 ff eb 05 e8 ff de f9 ff 5b <41> 5e 41 5f 5d c3 e8 f3 de f9 ff 0f 0b eb a4 e8 ea de f9 ff 0f 0b
RSP: 0018:ffffc90003187ee8 EFLAGS: 00000046
RAX: ffffffff817debaa RBX: 000000000000000f RCX: 0000000000080000
RDX: ffffc9000f56c000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc90003187f48 R08: dffffc0000000000 R09: fffffbfff1ad31be
R10: fffffbfff1ad31be R11: 1ffffffff1ad31bd R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fce971ca6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c27927d CR3: 000000006a6a6000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __enter_from_user_mode kernel/entry/common.c:25 [inline]
 syscall_enter_from_user_mode+0x1c/0x70 kernel/entry/common.c:110
 do_syscall_64+0x24/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fce98f1fdb9
Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25
RSP: 002b:00007fce971c9b40 EFLAGS: 00000246 ORIG_RAX: 000000000000000f
RAX: ffffffffffffffda RBX: 00007fce991bb098 RCX: 00007fce98f1fdb9
RDX: 00007fce971c9b40 RSI: 00007fce971c9c70 RDI: 0000000000000011
RBP: 00007fce991bb090 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fce991bb128 R14: 00007ffc0d92e660 R15: 00007ffc0d92e748
 </TASK>