rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=7809, q=72 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294954480-4294943978), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g7809 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:27752 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5380 [inline]
 __schedule+0x14d2/0x44d0 kernel/sched/core.c:6699
 schedule+0xbd/0x170 kernel/sched/core.c:6773
 schedule_timeout+0x160/0x280 kernel/time/timer.c:2167
 rcu_gp_fqs_loop+0x302/0x1560 kernel/rcu/tree.c:1667
 rcu_gp_kthread+0x99/0x380 kernel/rcu/tree.c:1866
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 5812 Comm: syz-executor370 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0033:0x7f31c28badf1
Code: 00 00 00 00 00 0f 1f 40 00 83 ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 83 ec 18 8b 6e 10 e8 cf 7e fd ff <39> c5 0f 85 f7 00 00 00 83 7b 08 fa 0f 85 ed 00 00 00 48 8b 05 3e
RSP: 002b:00007ffef543f5d0 EFLAGS: 00000202
RAX: 0000000000000003 RBX: 00007ffef543f730 RCX: 00007f31c2892cc7
RDX: 00007ffef543f600 RSI: 00007ffef543f730 RDI: 0000000000000021
RBP: 0000000000000000 R08: 00007f31c2854990 R09: 00007f31c2854990
R10: 0000000000000000 R11: 0000000000000202 R12: 00007f31c28f233c
R13: 00007f31c28ec106 R14: 00007ffef543fbc0 R15: 0000000000000000
FS:  000055555f7fa3c0 GS:  0000000000000000