watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:5:26395]
Modules linked in:
irq event stamp: 919269
hardirqs last  enabled at (919268): [<ffff80000bfb8138>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (919268): [<ffff80000bfb8138>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (919269): [<ffff80000bfb6088>] __el1_irq arch/arm64/kernel/entry-common.c:467 [inline]
hardirqs last disabled at (919269): [<ffff80000bfb6088>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:485
softirqs last  enabled at (914724): [<ffff80000b6aa7a4>] spin_unlock_bh include/linux/spinlock.h:394 [inline]
softirqs last  enabled at (914724): [<ffff80000b6aa7a4>] clusterip_netdev_event+0x188/0x1ac net/ipv4/netfilter/ipt_CLUSTERIP.c:233
softirqs last disabled at (914726): [<ffff80000b2e8968>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
CPU: 0 PID: 26395 Comm: kworker/0:5 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022
Workqueue: events ser_release
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x98/0x380 kernel/locking/qspinlock.c:383
lr : queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
lr : do_raw_spin_lock+0x10c/0x110 kernel/locking/spinlock_debug.c:115
sp : ffff800014e7ba80
x29: ffff800014e7ba80 x28: ffff80000d8c6000 x27: ffff00012ab6a110
x26: 00000000ffffffff x25: 0000000000000004 x24: 0000000000000110
x23: 0000000000000001 x22: ffff00012ab6a0c0 x21: ffff80000d25e008
x20: ffff00012b5b0000 x19: ffff00012ab6a0c0 x18: 00000000000000c0
x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff00012b5b0000
x14: ffff80000dd0b198 x13: ffff80000db49158 x12: ffff00012b5b0000
x11: ff808000095d19c0 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000101 x7 : ffff80000b2e5f0c x6 : 0000000000000000
x5 : 0000000000000020 x4 : ffff800014e7b8d0 x3 : 0000000000000000
x2 : 0000000000000001 x1 : 0000000000000001 x0 : ffff00012ab6a0c0
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:252 [inline]
 __cmpwait arch/arm64/include/asm/cmpxchg.h:278 [inline]
 queued_spin_lock_slowpath+0x98/0x380 kernel/locking/qspinlock.c:383
 queued_spin_lock include/asm-generic/qspinlock.h:114 [inline]
 do_raw_spin_lock+0x10c/0x110 kernel/locking/spinlock_debug.c:115
 __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline]
 _raw_spin_lock+0x5c/0x6c kernel/locking/spinlock.c:154
 spin_lock include/linux/spinlock.h:349 [inline]
 __netif_tx_lock include/linux/netdevice.h:4270 [inline]
 netif_freeze_queues net/sched/sch_generic.c:459 [inline]
 netif_tx_lock net/sched/sch_generic.c:468 [inline]
 netif_tx_lock_bh include/linux/netdevice.h:4354 [inline]
 dev_watchdog_down+0x78/0x228 net/sched/sch_generic.c:563
 dev_deactivate_many+0x32c/0x670 net/sched/sch_generic.c:1341
 __dev_close_many+0x194/0x260 net/core/dev.c:1503
 dev_close_many+0xc4/0x234 net/core/dev.c:1541
 dev_close+0x8c/0xe0 net/core/dev.c:1567
 ser_release+0x98/0x108 drivers/net/caif/caif_serial.c:309
 process_one_work+0x2d8/0x504 kernel/workqueue.c:2289
 worker_thread+0x340/0x610 kernel/workqueue.c:2436
 kthread+0x12c/0x158 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860