watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [kworker/0:4:5205]
Modules linked in:
irq event stamp: 109876
hardirqs last  enabled at (109875): [<ffff8000803559c8>] queue_delayed_work_on+0xb0/0x140 kernel/workqueue.c:2624
hardirqs last disabled at (109876): [<ffff8000868e627c>] __el1_irq arch/arm64/kernel/entry-common.c:506 [inline]
hardirqs last disabled at (109876): [<ffff8000868e627c>] el1_interrupt+0x28/0x60 arch/arm64/kernel/entry-common.c:522
softirqs last  enabled at (109858): [<ffff80008030ff44>] softirq_handle_end kernel/softirq.c:468 [inline]
softirqs last  enabled at (109858): [<ffff80008030ff44>] handle_softirqs+0xc28/0xd98 kernel/softirq.c:650
softirqs last disabled at (109853): [<ffff8000800204c0>] __do_softirq+0x14/0x20 kernel/softirq.c:656
CPU: 0 UID: 0 PID: 5205 Comm: kworker/0:4 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026
Workqueue: rcu_gp process_srcu
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : queue_delayed_work_on+0xf4/0x140 kernel/workqueue.c:2625
lr : queue_delayed_work_on+0xf0/0x140 kernel/workqueue.c:2624
sp : ffff80009a3779c0
x29: ffff80009a3779c0 x28: ffff80008e847200 x27: ffff0000c1dc42b8
x26: 0000000000000000 x25: 0000000000800000 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000008 x21: ffff0000c0029800
x20: 00000000000000c0 x19: 0000000000000001 x18: 1fffe00035bc5428
x17: 0000000000000003 x16: ffff800088b07000 x15: 0000000000000000
x14: 00000000ffff8000 x13: 0000000000000001 x12: 0000000000000000
x11: ffff80008a590e28 x10: 0000000000000003 x9 : 0000000000000000
x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f
x5 : 0000000000000040 x4 : 0000000000000008 x3 : ffff800080355a00
x2 : 0000000000000080 x1 : ffff0000f2a80000 x0 : 0000000000000000
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)
 queue_delayed_work_on+0xf4/0x140 kernel/workqueue.c:2624 (P)
 queue_delayed_work include/linux/workqueue.h:714 [inline]
 srcu_reschedule+0x240/0x338 kernel/rcu/srcutree.c:1957
 process_srcu+0xd04/0x1eb8 kernel/rcu/srcutree.c:1991
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0x788/0x10b8 kernel/workqueue.c:3405
 worker_thread+0x798/0xbd0 kernel/workqueue.c:3486
 kthread+0x304/0x3d4 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
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+0xd0/0xfc kernel/sched/idle.c:129