------------[ cut here ]------------
kcov->t != t
WARNING: kernel/kcov.c:483 at kcov_task_exit+0xf5/0x160, CPU#0: kworker/1:6/6219
Modules linked in:
CPU: 0 UID: 0 PID: 6219 Comm: kworker/1:6 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
RIP: 0010:kcov_task_exit+0xf5/0x160
Code: 10 00 00 48 8b bb 90 00 00 00 e8 a6 31 58 00 48 89 df 5b 41 5e 41 5f e9 39 ee 5d 00 7c 1c 5b 41 5e 41 5f e9 bd 78 67 09 cc 90 <0f> 0b 90 4c 89 f7 5b 41 5e 41 5f e9 1b 0f 66 09 48 89 df be 03 00
RSP: 0018:ffffc90008cb7cc0 EFLAGS: 00010287
RAX: c7634ec450a6ca00 RBX: ffff88810af78f00 RCX: 0000000000000000
RDX: 00000000d3a06c02 RSI: ffffffff8ba85b40 RDI: 00000000ffffffff
RBP: ffffc90008cb7e18 R08: ffffffff8b2ad9d0 R09: ffffffff8dfc8240
R10: dffffc0000000000 R11: fffffbfff1f1597f R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88810af78f08 R15: ffff8881792cd880
FS:  0000000000000000(0000) GS:ffff88818e91f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560428e6d950 CR3: 000000011bcd4000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 do_exit+0x150/0x22c0
 kthread+0x3a6/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
