watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:5:6628]
Modules linked in:
irq event stamp: 60792
hardirqs last  enabled at (60791): [<ffff80008b6a683c>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:85 [inline]
hardirqs last  enabled at (60791): [<ffff80008b6a683c>] exit_to_kernel_mode+0xdc/0x10c arch/arm64/kernel/entry-common.c:95
hardirqs last disabled at (60792): [<ffff80008b6a42b4>] __el1_irq arch/arm64/kernel/entry-common.c:557 [inline]
hardirqs last disabled at (60792): [<ffff80008b6a42b4>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:575
softirqs last  enabled at (60790): [<ffff80008030f088>] softirq_handle_end kernel/softirq.c:407 [inline]
softirqs last  enabled at (60790): [<ffff80008030f088>] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589
softirqs last disabled at (60775): [<ffff800080020db4>] __do_softirq+0x14/0x20 kernel/softirq.c:595
CPU: 0 UID: 0 PID: 6628 Comm: kworker/0:5 Tainted: G        W          6.13.0-rc6-syzkaller-g6251d1776bc5 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events fqdir_free_fn
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:340 [inline]
pc : smp_call_function_single+0x394/0x1938 kernel/smp.c:679
lr : csd_lock_wait kernel/smp.c:340 [inline]
lr : smp_call_function_single+0x3ac/0x1938 kernel/smp.c:679
sp : ffff80009f9178a0
x29: ffff80009f9179e0 x28: ffff80009f917990 x27: ffff80009f917998
x26: ffff80009f91798e x25: dfff800000000000 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000001 x21: 0000000000000011
x20: ffff0000ccb08008 x19: ffff80009f917988 x18: ffff0000d0599081
x17: ffff800123ef8000 x16: ffff8000832776d4 x15: 0000000000000001
x14: 1ffff00013f22f31 x13: 0000000000000000 x12: 0000000000000000
x11: ffff700013f22f32 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000011 x6 : 0000000000000000
x5 : ffff80009f9179a0 x4 : ffff80008ef234a0 x3 : ffff8000805e85b8
x2 : 0000000000000000 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __cmpwait_case_32 arch/arm64/include/asm/cmpxchg.h:231 [inline] (P)
 __cmpwait arch/arm64/include/asm/cmpxchg.h:257 [inline] (P)
 csd_lock_wait kernel/smp.c:340 [inline] (P)
 smp_call_function_single+0x394/0x1938 kernel/smp.c:679 (P)
 rcu_barrier+0x310/0x534 kernel/rcu/tree.c:4617
 fqdir_free_fn+0x50/0x178 net/ipv4/inet_fragment.c:167
 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x97c/0xeec kernel/workqueue.c:3391
 kthread+0x288/0x310 kernel/kthread.c:389
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862
Sending NMI from CPU 0 to CPUs 1: