watchdog: BUG: soft lockup - CPU#1 stuck for 24s! [kworker/u4:0:9]
Modules linked in:
irq event stamp: 1685052
hardirqs last  enabled at (1685051): [<ffff80000fa9f054>] seqcount_lockdep_reader_access+0x1fc/0x2c4 include/linux/seqlock.h:105
hardirqs last disabled at (1685052): [<ffff8000111baf54>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (1680854): [<ffff80000fb18e50>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (1680854): [<ffff80000fb18e50>] __nf_nat_cleanup_conntrack net/netfilter/nf_nat_core.c:801 [inline]
softirqs last  enabled at (1680854): [<ffff80000fb18e50>] nf_nat_cleanup_conntrack+0x134/0x15c net/netfilter/nf_nat_core.c:828
softirqs last disabled at (1680852): [<ffff80000fb18dbc>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (1680852): [<ffff80000fb18dbc>] __nf_nat_cleanup_conntrack net/netfilter/nf_nat_core.c:799 [inline]
softirqs last disabled at (1680852): [<ffff80000fb18dbc>] nf_nat_cleanup_conntrack+0xa0/0x15c net/netfilter/nf_nat_core.c:828
CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Workqueue: events_power_efficient gc_worker
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : seqcount_lockdep_reader_access+0x21c/0x2c4 include/linux/seqlock.h:106
lr : seqcount_lockdep_reader_access+0x218/0x2c4 include/linux/seqlock.h:105
sp : ffff80001b2e7990
x29: ffff80001b2e7990 x28: 000000000003b445 x27: ffff0000d3bf3550
x26: ffff800014177000 x25: 1ffff00002cf5102 x24: ffff8000167a8000
x23: dfff800000000000 x22: 0000000000000000 x21: 0080000000000000
x20: 0000000000000030 x19: 0000000000000080 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000082c0bc8 x15: 0000000000000001
x14: 00000000ffff8000 x13: 1ffff0000282e06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80000fa9f070
x8 : ffff0000c0948000 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000000 x3 : 0000000000000010
x2 : 0000000000000006 x1 : 0000000000000080 x0 : 0000000000000000
Call trace:
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:122 [inline]
 seqcount_lockdep_reader_access+0x21c/0x2c4 include/linux/seqlock.h:105
 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:338 [inline]
 gc_worker+0x280/0x11a4 net/netfilter/nf_conntrack_core.c:1472
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:855