rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P3619/1:b..l
	(detected by 0, t=10502 jiffies, g=57129, q=81 ncpus=2)
task:kworker/0:6     state:R  running task     stack:23288 pid:3619  ppid:2      flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 preempt_schedule_irq+0xf7/0x1c0 kernel/sched/core.c:6870
 irqentry_exit+0x53/0x80 kernel/entry/common.c:439
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:653
RIP: 0010:seqcount_lockdep_reader_access+0x1dc/0x220 include/linux/seqlock.h:105
Code: f8 4d 85 ed 75 16 e8 93 9e c6 f8 eb 15 e8 8c 9e c6 f8 e8 57 f9 c6 01 4d 85 ed 74 ea e8 7d 9e c6 f8 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:ffffc900045dfa40 EFLAGS: 00000293
RAX: ffffffff88c3eed3 RBX: 0000000000000000 RCX: ffff88805b8fd940
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900045dfaf0 R08: ffffffff88c3eea9 R09: fffffbfff2093856
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000200 R14: 0000000000000046 R15: 1ffff920008bbf48
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:343 [inline]
 gc_worker+0x325/0x1530 net/netfilter/nf_conntrack_core.c:1503
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: rcu_preempt kthread starved for 10524 jiffies! g57129 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:26744 pid:16    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0x142d/0x4550 kernel/sched/core.c:6558
 schedule+0xbf/0x180 kernel/sched/core.c:6634
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1965
 rcu_gp_fqs_loop+0x2d2/0x1150 kernel/rcu/tree.c:1706
 rcu_gp_kthread+0xa3/0x3b0 kernel/rcu/tree.c:1905
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 12389 Comm: syz-executor.1 Not tainted 6.1.91-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:should_resched arch/x86/include/asm/preempt.h:103 [inline]
RIP: 0010:__local_bh_enable_ip+0x16c/0x1f0 kernel/softirq.c:403
Code: 8a e8 68 e6 36 09 65 66 8b 05 60 84 af 7e 66 85 c0 75 57 bf 01 00 00 00 e8 a1 38 0a 00 e8 6c 34 3d 00 fb 65 8b 05 0c 54 ae 7e <85> c0 75 05 e8 3b 79 ac ff 48 c7 44 24 20 0e 36 e0 45 49 c7 04 1c
RSP: 0018:ffffc900069d78c0 EFLAGS: 00000282
RAX: 0000000080000000 RBX: 1ffff92000d3af1c RCX: ffffffff91c94103
RDX: dffffc0000000000 RSI: ffffffff8aec01c0 RDI: ffffffff8b3d4560
RBP: ffffc900069d7970 R08: ffffffff815bbda6 R09: ffffed102802f381
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff92000d3af20 R14: ffffc900069d7900 R15: 0000000000000200
FS:  00007fe09a1f66c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe09a1f5fc0 CR3: 0000000060c73000 CR4: 00000000003506f0
Call Trace:
 <IRQ>
 </IRQ>
 <TASK>
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 fpregs_unlock arch/x86/include/asm/fpu/api.h:80 [inline]
 copy_fpstate_to_sigframe+0x54d/0xda0 arch/x86/kernel/fpu/signal.c:233
 get_sigframe+0x378/0x4b0 arch/x86/kernel/signal.c:297
 __setup_rt_frame arch/x86/kernel/signal.c:472 [inline]
 setup_rt_frame arch/x86/kernel/signal.c:784 [inline]
 handle_signal arch/x86/kernel/signal.c:828 [inline]
 arch_do_signal_or_restart+0x4ef/0x1a10 arch/x86/kernel/signal.c:873
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
 syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe09b6514c6
Code: 10 64 48 89 04 25 00 03 00 00 48 8b 5c 24 08 41 ba 08 00 00 00 31 d2 bf 02 00 00 00 b8 0e 00 00 00 48 8d b3 f0 08 00 00 0f 05 <80> bb f8 08 00 00 00 0f 84 99 01 00 00 48 8b bb 40 06 00 00 ff 93
RSP: 002b:00007fe09a1f61a0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fe09a1f66c0 RCX: 00007fe09b6514c6
RDX: 0000000000000000 RSI: 00007fe09a1f6fb0 RDI: 0000000000000002
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fff45b9c8a7
R10: 0000000000000008 R11: 0000000000000246 R12: ffffffffffffffb0
R13: 000000000000006e R14: 00007fff45b9c7c0 R15: 00007fff45b9c8a8
 </TASK>