rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P3808/1:b..l
	(detected by 1, t=10502 jiffies, g=66165, q=439)
task:kworker/1:10    state:R  running task     stack:24280 pid: 3808 ppid:     2 flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6780
 irqentry_exit+0x53/0x80 kernel/entry/common.c:432
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:seqcount_lockdep_reader_access+0x1dc/0x220 include/linux/seqlock.h:106
Code: f9 4d 85 ed 75 16 e8 03 1f 05 f9 eb 15 e8 fc 1e 05 f9 e8 57 6e a3 01 4d 85 ed 74 ea e8 ed 1e 05 f9 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00
RSP: 0018:ffffc900012ffa40 EFLAGS: 00000293
RAX: ffffffff887b3f23 RBX: 0000000000000000 RCX: ffff888024621dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900012ffaf0 R08: ffffffff887b3ef9 R09: fffffbfff1f7f42b
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000200 R14: 0000000000000046 R15: 1ffff9200025ff48
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:338 [inline]
 gc_worker+0x30f/0x14b0 net/netfilter/nf_conntrack_core.c:1472
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10522 jiffies! g66165 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=23154
rcu: rcu_preempt kthread starved for 10528 jiffies! g66165 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->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:I stack:26712 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5030 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6376
 schedule+0x11b/0x1f0 kernel/sched/core.c:6459
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 kthread+0x3f6/0x4f0 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: 11581 Comm: syz.1.1159 Not tainted 5.15.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:check_kcov_mode kernel/kcov.c:174 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:218 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp8+0x30/0x80 kernel/kcov.c:264
Code: 8b 0d c4 0f 82 7e 65 8b 05 c5 0f 82 7e a9 00 01 ff 00 74 10 a9 00 01 00 00 74 57 83 b9 34 16 00 00 00 74 4e 8b 81 10 16 00 00 <83> f8 03 75 43 48 8b 91 18 16 00 00 44 8b 89 14 16 00 00 49 c1 e1
RSP: 0018:ffffc900031e7988 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000007f33daf471 RCX: ffff88801d03bb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000007f33daf471
RBP: 0000007f33daf471 R08: ffffffff816f3b41 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: dffffc0000000000
R13: 7fffffffffffffff R14: ffff88801dc310d8 R15: 0000000000000000
FS:  00005555559dd500(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001340 CR3: 000000004602d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 hrtimer_set_expires_range_ns include/linux/hrtimer.h:257 [inline]
 __hrtimer_start_range_ns kernel/time/hrtimer.c:1249 [inline]
 hrtimer_start_range_ns+0x3b1/0xc50 kernel/time/hrtimer.c:1299
 posixtimer_rearm+0x1ad/0x3f0 kernel/time/posix-timers.c:328
 dequeue_signal+0x1ed/0x520 kernel/signal.c:696
 get_signal+0x52e/0x14e0 kernel/signal.c:2770
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fbe00f1db59
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffee6a04d38 EFLAGS: 00000246
RAX: fffffffffffffffc RBX: 000000000006ba39 RCX: 00007fbe00f1db59
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbe010ae044
RBP: 000000000006ba07 R08: 0000000000000010 R09: 00000017e6a0505f
R10: 00007ffee6a04e20 R11: 0000000000000246 R12: 00007fbe010ae044
R13: 0000000000000032 R14: 00007ffee6a04e40 R15: 00007ffee6a04e20
 </TASK>