------------[ cut here ]------------
in_task() && kcov_mode_enabled(mode)
WARNING: kernel/kcov.c:884 at kcov_remote_start+0x5d8/0x710, CPU#0: kworker/0:6/5672
Modules linked in:
CPU: 0 UID: 0 PID: 5672 Comm: kworker/0:6 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:kcov_remote_start+0x5d8/0x710
Code: 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 b2 f9 e5 02 90 0f 0b 90 e9 62 fa ff ff 90 0f 0b 90 0f b7 83 c0 04 00 00 e9 a3 fa ff ff 90 <0f> 0b 90 eb 04 90 0f 0b 90 e8 aa c4 63 09 89 c0 48 c7 c7 90 a2 70
RSP: 0018:ffffc9000592f828 EFLAGS: 00010202
RAX: 0000000000000002 RBX: ffff88810b87d880 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff8ba85b40 RDI: ffffffff8ba85b00
RBP: ffffc9000592fb30 R08: ffffffff8b2ad9d0 R09: ffffffff8dfc8240
R10: dffffc0000000000 R11: fffffbfff1f1597f R12: ffff88816bf06000
R13: dffffc0000000000 R14: 0100000000000009 R15: ffff88816c320000
FS:  0000000000000000(0000) GS:ffff88818e91f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff860f1000 CR3: 000000000ddb6000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 hub_event+0x150/0x4f60
 process_one_work+0x98b/0x1630
 worker_thread+0xb49/0x1140
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
