INFO: task syz-executor705:8522 can't die for more than 143 seconds.
task:syz-executor705 state:R  running task     stack:27448 pid: 8522 ppid:  8521 flags:0x00004006
Call Trace:

Showing all locks held in the system:
1 lock held by khungtaskd/1657:
 #0: ffffffff8b338160 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6253
1 lock held by in:imklog/8201:
 #0: ffff88801b65a370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:932
1 lock held by syz-executor705/8522:

=============================================

Kernel panic - not syncing: hung_task: blocked tasks
CPU: 0 PID: 1657 Comm: khungtaskd Not tainted 5.10.0-rc1-next-20201102-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:118
 panic+0x306/0x73d kernel/panic.c:231
 check_hung_uninterruptible_tasks kernel/hung_task.c:257 [inline]
 watchdog.cold+0x23e/0x248 kernel/hung_task.c:338
 kthread+0x3af/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Kernel Offset: disabled
Rebooting in 86400 seconds..