rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=13133, q=642 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 8291 (4294976026-4294967735), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 8292 jiffies! g13133 f0x2 RCU_GP_CLEANUP(7) ->state=R ->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:28984 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5526 [inline]
 __schedule+0x1259/0x6920 kernel/sched/core.c:7276
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7598
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x205/0xa10 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__might_resched+0x223/0x330 kernel/sched/core.c:9221
Code: 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 09 3c 03 7f 05 e8 a4 5b a8 00 41 8b 96 38 0b 00 00 <85> d2 0f 85 9a fe ff ff e9 d1 fe ff ff be ff ff ff ff 48 c7 c7 c0
RSP: 0018:ffffc90000167c58 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff9200002cf8b RCX: 0000000000000001
RDX: 0000000000000000 RSI: ffffffff8e3c7f04 RDI: ffff88801f2db0b8
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8bf1dd00
R13: 00000000000000e3 R14: ffff88801f2da580 R15: 8000000000000000
 cond_resched_tasks_rcu_qs include/linux/rcupdate.h:227 [inline]
 rcu_gp_cleanup+0x2c7/0xd40 kernel/rcu/tree.c:2246
 rcu_gp_kthread+0x18b/0x220 kernel/rcu/tree.c:2334
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5778 Comm: kworker/u9:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
Workqueue: krxrpcd rxrpc_peer_keepalive_worker
RIP: 0010:finish_task_switch.isra.0+0x2ca/0x10d0 kernel/sched/core.c:5377
Code: b6 0a 00 00 41 c7 87 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 8d 7f 48 e8 b3 24 fc 09 e8 8e 23 3d 00 fb 48 8d bb 10 17 00 00 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84
RSP: 0018:ffffc900033e78e0 EFLAGS: 00000202
RAX: 0000000000235225 RBX: ffff888033dd4b00 RCX: 0000000000000040
RDX: 0000000000000001 RSI: ffffffff8e3ee378 RDI: ffff888033dd6210
RBP: ffffc900033e7938 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888029d1cb00
R13: 0000000000000000 R14: ffffffff91455404 R15: ffff8880b843bf00
FS:  0000000000000000(0000) GS:ffff888123b5c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000140 CR3: 000000007326b000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5529 [inline]
 __schedule+0x1261/0x6920 kernel/sched/core.c:7276
 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:7598
 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline]
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x205/0xa10 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5947
Code: 05 8f f7 a4 12 83 f8 07 0f 87 da 00 00 00 48 0f a3 05 9e d9 5d 0f 0f 82 c9 02 00 00 8b 35 3e 0b 5e 0f 85 f6 0f 85 c7 00 00 00 <48> 8b 44 24 30 65 48 2b 05 2d f7 a4 12 0f 85 09 03 00 00 48 83 c4
RSP: 0018:ffffc900033e7bb0 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8e3c7f04 RDI: ffffffff8c622980
RBP: ffff88803399a140 R08: 0000000000046201 R09: 000000000000054f
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000
 process_one_work+0x14b8/0x1b10 kernel/workqueue.c:3371
 process_scheduled_works kernel/workqueue.c:3479 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560
 kthread+0x373/0x450 kernel/kthread.c:436
 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>