watchdog: BUG: soft lockup - CPU#1 stuck for 34s! [kworker/u4:5:1611]
Modules linked in:
irq event stamp: 114200
hardirqs last  enabled at (114199): [<ffff80000819c354>] __local_bh_enable_ip+0x1f8/0x380 kernel/softirq.c:388
hardirqs last disabled at (114200): [<ffff8000111a3e04>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (114198): [<ffff800010f4de60>] spin_unlock_bh include/linux/spinlock.h:408 [inline]
softirqs last  enabled at (114198): [<ffff800010f4de60>] batadv_tt_local_purge+0x25c/0x2e0 net/batman-adv/translation-table.c:1371
softirqs last disabled at (114196): [<ffff800010f4dd00>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (114196): [<ffff800010f4dd00>] batadv_tt_local_purge+0xfc/0x2e0 net/batman-adv/translation-table.c:1369
CPU: 1 PID: 1611 Comm: kworker/u4:5 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: bat_events batadv_tt_purge
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : should_resched arch/arm64/include/asm/preempt.h:78 [inline]
pc : __local_bh_enable_ip+0x200/0x380 kernel/softirq.c:390
lr : __local_bh_enable_ip+0x1f8/0x380 kernel/softirq.c:388
sp : ffff8000237d7960
x29: ffff8000237d7970 x28: 0000000000000100 x27: ffff0000c947a498
x26: ffff0000da260380 x25: ffff0000e337de08 x24: 0000000000000001
x23: dfff800000000000 x22: 1fffe00019a50369 x21: ffff800010f4de60
x20: ffff0001a112f0c0 x19: ffff0000cd281b48 x18: 0000000000000101
x17: 0000000000000000 x16: ffff8000082bf2b8 x15: ffff80000f6efb28
x14: ffff80000f6e9294 x13: 1ffff0000282a06b x12: 0000000000ff0100
x11: 0000000000000000 x10: 0000000000000000 x9 : ffff80000a77f318
x8 : 00000000000000e0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff800008044e7c
x2 : 0000000000000006 x1 : ffff8000112fb080 x0 : ffff80018d079000
Call trace:
 arch_local_irq_enable arch/arm64/include/asm/irqflags.h:35 [inline]
 __local_bh_enable_ip+0x200/0x380 kernel/softirq.c:388
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline]
 _raw_spin_unlock_bh+0xec/0x174 kernel/locking/spinlock.c:210
 spin_unlock_bh include/linux/spinlock.h:408 [inline]
 batadv_tt_local_purge+0x25c/0x2e0 net/batman-adv/translation-table.c:1371
 batadv_tt_purge+0x44/0x7e4 net/batman-adv/translation-table.c:3582
 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:870