watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/u4:5:1365] Modules linked in: irq event stamp: 3915711 hardirqs last enabled at (3915710): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:81 [inline] hardirqs last enabled at (3915710): [] exit_to_kernel_mode+0x100/0x178 arch/arm64/kernel/entry-common.c:91 hardirqs last disabled at (3915711): [] enter_el1_irq_or_nmi+0x10/0x1c arch/arm64/kernel/entry-common.c:227 softirqs last enabled at (3911050): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (3911050): [] __do_softirq+0xb5c/0xdb0 kernel/softirq.c:587 softirqs last disabled at (3911052): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (3911052): [] batadv_tt_local_commit_changes+0x24/0x44 net/batman-adv/translation-table.c:3717 CPU: 0 PID: 1365 Comm: kworker/u4:5 Not tainted 5.15.151-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 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 : ffff80001d697700 x29: ffff80001d6977a0 x28: 1ffff00003ad2eec x27: 1fffe0001b660a67 x26: dfff800000000000 x25: ffff700003ad2ee4 x24: ffff80001d697720 x23: 1fffe0001b660a66 x22: ffff80001d697760 x21: 0000000000000001 x20: 0000000000000001 x19: ffff0000db305330 x18: 0000000000000101 x17: 0000000000000000 x16: ffff8000083036c4 x15: 0000000000000001 x14: 1ffff0000292206a x13: dfff800000000000 x12: 0000000000000001 x11: 1fffe0001b660a66 x10: 0000000000000000 x9 : 0000000000000000 x8 : 0000000000000101 x7 : ffff8000117c59d8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff8000083028ec 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