watchdog: BUG: soft lockup - CPU#0 stuck for 24s! [kworker/u8:0:12]
Modules linked in:
irq event stamp: 42917295
hardirqs last  enabled at (42917294): [<ffff80008688206c>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline]
hardirqs last  enabled at (42917294): [<ffff80008688206c>] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:221
hardirqs last disabled at (42917295): [<ffff80008685dcd8>] __el1_irq arch/arm64/kernel/entry-common.c:565 [inline]
hardirqs last disabled at (42917295): [<ffff80008685dcd8>] el1_interrupt+0x28/0x60 arch/arm64/kernel/entry-common.c:581
softirqs last  enabled at (5935970): [<ffff800086608e58>] spin_unlock_bh include/linux/spinlock.h:407 [inline]
softirqs last  enabled at (5935970): [<ffff800086608e58>] batadv_tt_local_purge+0x274/0x2f0 net/batman-adv/translation-table.c:1402
softirqs last disabled at (5935971): [<ffff8000800203f0>] __do_softirq+0x14/0x20 kernel/softirq.c:679
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2026
Workqueue: bat_events batadv_tt_purge
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
pc : _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:221
lr : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline]
lr : _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:221
sp : ffff80008ea97dd0
x29: ffff80008ea97dd0 x28: 1fffe00035bd9c32 x27: ffff0001adece180
x26: ffff0001adece190 x25: ffff0000f5190938 x24: dfff800000000000
x23: 0000000000000001 x22: ffff800084e6bce4 x21: ffff0001adecde40
x20: ffff0001adecde40 x19: 0000000000000000 x18: ffff8001254c8000
x17: ffff0001adee5e07 x16: ffff0000c19f8014 x15: 0000000000000001
x14: 000000000345b291 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a506e28 x10: 0000000000000003 x9 : 0000000000000001
x8 : 00000000000000c0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff8000801556d8
x2 : 0000000000000002 x1 : ffff0000c19f8000 x0 : ffff8001254c8000
Call trace:
 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] (P)
 arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] (P)
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:210 [inline] (P)
 _raw_spin_unlock_irqrestore+0x44/0x98 kernel/locking/spinlock.c:221 (P)
 __run_hrtimer kernel/time/hrtimer.c:2070 [inline]
 __hrtimer_run_queues+0x228/0x998 kernel/time/hrtimer.c:2131
 hrtimer_run_softirq+0x1b4/0x2a8 kernel/time/hrtimer.c:2148
 handle_softirqs+0x324/0xcbc kernel/softirq.c:645
 __do_softirq+0x14/0x20 kernel/softirq.c:679
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:78
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:901
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:83
 do_softirq+0x90/0xf8 kernel/softirq.c:546
 __local_bh_enable_ip+0x190/0x234 kernel/softirq.c:473
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:237 [inline]
 _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:245
 spin_unlock_bh include/linux/spinlock.h:407 [inline]
 batadv_tt_local_purge+0x274/0x2f0 net/batman-adv/translation-table.c:1402
 batadv_tt_purge+0x44/0x7b4 net/batman-adv/translation-table.c:3753
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0x91c/0x1250 kernel/workqueue.c:3479
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3560
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline]
NMI backtrace for cpu 1 skipped: idling at default_idle_call+0xa0/0xb8 kernel/sched/idle.c:129