rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=22241, q=802 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294961029-4294950526), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g22241 f0x2 RCU_GP_WAIT_FQS(5) ->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:27488 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5520 [inline]
 __schedule+0x17f3/0x57e0 kernel/sched/core.c:7270
 preempt_schedule_irq+0x47/0x90 kernel/sched/core.c:7592
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x146/0x780 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:timer_delete_sync+0x0/0x20 kernel/time/timer.c:1675
Code: 80 e1 07 38 c1 0f 8c 66 ff ff ff 4c 89 e7 e8 57 39 81 00 e9 59 ff ff ff 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <53> 48 89 fb e8 97 97 13 00 48 89 df 31 f6 5b eb 1f 66 66 66 66 66
RSP: 0018:ffffc90000167ad8 EFLAGS: 00000246
RAX: 0000000000208040 RBX: 00000000ffffbe7f RCX: ffffffff99f93501
RDX: 0000000000000001 RSI: ffffffff8c076c60 RDI: ffffc90000167b00
RBP: ffffc90000167bd0 R08: ffffffff8fe6707f R09: 1ffffffff1fcce0f
R10: dffffc0000000000 R11: fffffbfff1fcce10 R12: 1ffff9200002cf5c
R13: ffffc90000167b00 R14: 1ffffffff1c41e50 R15: dffffc0000000000
 schedule_timeout+0x156/0x2c0 kernel/time/sleep_timeout.c:100
 rcu_gp_fqs_loop+0x308/0x11d0 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9a/0x2b0 kernel/rcu/tree.c:2330
 kthread+0x387/0x470 kernel/kthread.c:436
 ret_from_fork+0x50c/0xb60 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: 37 Comm: kcompactd1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:finish_task_switch+0x413/0xc60 kernel/sched/core.c:5371
Code: 04 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 0f 1f 44 00 00 49 83 c4 48 4c 89 e7 e8 f7 1f 00 0a e8 a2 b4 38 00 fb 4c 8b 65 c8 <49> 8d bc 24 00 17 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc90000ad76a0 EFLAGS: 00000202
RAX: 0000000000013001 RBX: ffff8880b863c860 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8dd265cf RDI: ffffffff8c076c80
RBP: ffffc90000ad76f0 R08: ffffffff8fe6707f R09: 1ffffffff1fcce0f
R10: dffffc0000000000 R11: fffffbfff1fcce10 R12: ffff888140ed0000
R13: ffff8880b863c838 R14: dffffc0000000000 R15: 1ffff110170c790c
FS:  0000000000000000(0000) GS:ffff888125720000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000058 CR3: 0000000034e60000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5523 [inline]
 __schedule+0x17fb/0x57e0 kernel/sched/core.c:7270
 preempt_schedule_irq+0x47/0x90 kernel/sched/core.c:7592
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
 irqentry_exit+0x146/0x780 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:schedule_timeout+0x151/0x2c0 kernel/time/sleep_timeout.c:100
Code: 31 d2 48 c7 c1 60 4d ad 8b 49 c7 c0 00 77 fd 99 e8 54 bd 1c f6 48 89 5c 24 30 4c 89 ef e8 e7 d0 1c f6 e8 b2 93 fe ff 4c 89 ef <e8> da df 1c f6 4c 89 ef e8 52 be 1c f6 43 80 3c 3e 00 74 0c 48 c7
RSP: 0018:ffffc90000ad7a20 EFLAGS: 00000246
RAX: 0000000000210040 RBX: 00000000ffffbe98 RCX: ffffffff99f93501
RDX: 0000000000000001 RSI: ffffffff8c076c60 RDI: ffffc90000ad7a40
RBP: ffffc90000ad7b10 R08: ffffffff8fe6707f R09: 1ffffffff1fcce0f
R10: dffffc0000000000 R11: fffffbfff1fcce10 R12: 1ffff9200015af44
R13: ffffc90000ad7a40 R14: 1ffffffff1c41e50 R15: dffffc0000000000
 kcompactd+0x416/0x12c0 mm/compaction.c:3216
 kthread+0x387/0x470 kernel/kthread.c:436
 ret_from_fork+0x50c/0xb60 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>