watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:12:4932]
Modules linked in:
irq event stamp: 71256
hardirqs last  enabled at (71255): [<ffff800012104380>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline]
hardirqs last  enabled at (71255): [<ffff800012104380>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94
hardirqs last disabled at (71256): [<ffff80001210205c>] __el1_irq arch/arm64/kernel/entry-common.c:468 [inline]
hardirqs last disabled at (71256): [<ffff80001210205c>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:486
softirqs last  enabled at (67052): [<ffff800008020d74>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (67052): [<ffff800008020d74>] __do_softirq+0xc14/0xea0 kernel/softirq.c:600
softirqs last disabled at (66923): [<ffff80000802a994>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79
CPU: 1 PID: 4932 Comm: kworker/1:12 Not tainted 6.1.34-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Workqueue: events fqdir_free_fn
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : csd_lock_wait kernel/smp.c:413 [inline]
pc : smp_call_function_single+0x448/0x2208 kernel/smp.c:776
lr : csd_lock_wait kernel/smp.c:413 [inline]
lr : smp_call_function_single+0x460/0x2208 kernel/smp.c:776
sp : ffff8000241476e0
x29: ffff800024147a30 x28: 0000000000000000 x27: ffff8000241477ee
x26: dfff800000000000 x25: dfff800000000000 x24: ffff700004828ef8
x23: ffff800024147820 x22: 1fffe0001bc71379 x21: 0000000000000011
x20: ffff8000241477e8 x19: ffff0000de389bc8 x18: 1fffe000368b9f76
x17: ffff8000155bd000 x16: ffff8000121062b4 x15: 0000000000000000
x14: 1ffff00002ab80b0 x13: 0000000000000000 x12: 0000000000000001
x11: ff8080000844ece4 x10: 0000000000000000 x9 : 0000000000000000
x8 : 0000000000000011 x7 : 0000000000000011 x6 : 0000000000000000
x5 : ffff800024147800 x4 : ffff800014cd6140 x3 : ffff80000844ecd8
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]
 csd_lock_wait kernel/smp.c:413 [inline]
 smp_call_function_single+0x448/0x2208 kernel/smp.c:776
 rcu_barrier+0x2fc/0x5c4 kernel/rcu/tree.c:4006
 fqdir_free_fn+0x50/0x178 net/ipv4/inet_fragment.c:163
 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2289
 worker_thread+0x8e4/0xfec kernel/workqueue.c:2436
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860