rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2660 jiffies s: 589 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.7.0-rc3-syzkaller-00811-gd16f1096b320 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Workqueue: events linkwatch_event
RIP: 0010:write_comp_data+0x35/0x80 kernel/kcov.c:236
Code: 8b 14 25 c0 bc 03 00 65 8b 05 2f 30 7c 7e a9 00 01 ff 00 74 0f f6 c4 01 74 59 8b 82 fc 15 00 00 85 c0 74 4f 8b 82 d8 15 00 00 <83> f8 03 75 44 48 8b 82 e0 15 00 00 8b 92 dc 15 00 00 48 8b 38 48
RSP: 0018:ffffc900000e7c48 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffff8880197266a8 RCX: ffffffff8876a1f0
RDX: ffff888017e40000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000003 R12: 00000000000000bd
R13: 0000000000000001 R14: ffff8880197d06a8 R15: ffff8880197266b0
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a498810000 CR3: 000000006baaf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 __list_add include/linux/list.h:150 [inline]
 list_add_tail include/linux/list.h:183 [inline]
 __linkwatch_run_queue+0x290/0x460 net/core/link_watch.c:225
 linkwatch_event+0x8f/0xc0 net/core/link_watch.c:273
 process_one_work+0x886/0x15d0 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
 kthread+0x2c6/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
 </TASK>