watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [kworker/u4:4:558]
Modules linked in:
irq event stamp: 8318217
hardirqs last  enabled at (8318216): [<ffff800011980e30>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline]
hardirqs last  enabled at (8318216): [<ffff800011980e30>] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91
hardirqs last disabled at (8318217): [<ffff800011981078>] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227
softirqs last  enabled at (8313264): [<ffff8000117bbfe0>] batadv_forw_packet_steal+0x11c/0x13c
softirqs last disabled at (8313280): [<ffff8000117d1ae8>] spin_lock_bh include/linux/spinlock.h:368 [inline]
softirqs last disabled at (8313280): [<ffff8000117d1ae8>] batadv_tt_local_commit_changes+0x24/0x44 net/batman-adv/translation-table.c:3717
CPU: 0 PID: 558 Comm: kworker/u4:4 Not tainted 5.15.147-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : queued_spin_lock_slowpath+0x160/0x938 kernel/locking/qspinlock.c:382
lr : queued_spin_lock_slowpath+0x16c/0x938 kernel/locking/qspinlock.c:382
sp : ffff80001ad37700
x29: ffff80001ad377a0 x28: 1ffff000035a6eec x27: 1fffe0001b69a267
x26: dfff800000000000 x25: ffff7000035a6ee4 x24: ffff80001ad37720
x23: 1fffe0001b69a266 x22: ffff80001ad37760 x21: 0000000000000001
x20: 0000000000000001 x19: ffff0000db4d1330 x18: 0000000000000000
x17: 0000000000000000 x16: ffff8000083024ac x15: 0000000000000001
x14: 1ffff0000292406a x13: dfff800000000000 x12: 0000000000000001
x11: 1fffe0001b69a266 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000101 x7 : ffff8000117d1ae8 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000083016d4
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
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+0x160/0x938 kernel/locking/qspinlock.c:382
 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
 do_raw_spin_lock+0x334/0x35c kernel/locking/spinlock_debug.c:115
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline]
 _raw_spin_lock_bh+0x12c/0x1c4 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:368 [inline]
 batadv_tt_local_commit_changes+0x24/0x44 net/batman-adv/translation-table.c:3717
 batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:812 [inline]
 batadv_iv_ogm_schedule+0x1f8/0xe60 net/batman-adv/bat_iv_ogm.c:869
 batadv_iv_send_outstanding_bat_ogm_packet+0x740/0x900 net/batman-adv/bat_iv_ogm.c:1713
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:319
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870