rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=23849, q=446 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10445 (4294979870-4294969425), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10446 jiffies! g23849 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:28440 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190
 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:__timer_delete_sync+0x7c/0x1b0 kernel/time/timer.c:1611
Code: b6 ef ff 48 89 de 4c 89 ef e8 80 b0 ef ff 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 fe 9e 14 00 58 48 85 db 0f 85 09 01 00 00 <e8> 1f a4 14 00 31 ff 65 8b 1d 96 6b 08 12 81 e3 00 00 0f 00 89 de
RSP: 0018:ffffc90000157b10 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81aa4584
RDX: ffff88801da88000 RSI: ffffffff81aa458f RDI: 0000000000000007
RBP: ffffc90000157b58 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: ffff88801da88b30 R12: 0000000000000000
R13: ffffc90000157b80 R14: 1ffffffff1c02250 R15: 0000000000000001
 schedule_timeout+0x12b/0x290 kernel/time/sleep_timeout.c:100
 rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 8508 Comm: syz.0.630 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0033:0x7f6fc65865e7
Code: 0b e9 68 fe ff ff 48 83 c4 18 48 8d 3d b2 62 d9 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 23 f8 fb ff 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 0f 1f 84 00 00
RSP: 002b:00007f6fc73893c8 EFLAGS: 00000202
RAX: 00000000000001fc RBX: 00007f6fc7389530 RCX: 00007f6fc65865e7
RDX: 00007f6fc7389400 RSI: 00007f6fc7389530 RDI: 0000000000000021
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000
R13: 00007f6fc67e6038 R14: 00007ffcb7f44520 R15: 00007ffcb7f44608
FS:  00007f6fc738a6c0 GS:  0000000000000000