Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts.
[  721.417319][ T1662] INFO: task syz-executor221:8492 can't die for more than 143 seconds.
[  721.425829][ T1662] task:syz-executor221 state:R  running task     stack:27440 pid: 8492 ppid:  8490 flags:0x00004006
[  721.437405][ T1662] Call Trace:
[  721.441333][ T1662]  __schedule+0x8eb/0x21b0
[  721.445809][ T1662]  ? lock_acquire+0x29d/0x750
[  721.452116][ T1662]  ? lock_release+0x5c3/0x710
[  721.456831][ T1662]  ? iget5_locked+0xac/0x2d0
[  721.462835][ T1662]  ? lock_acquire+0x5d3/0x750
[  721.468538][ T1662]  ? do_raw_spin_lock+0x120/0x2b0
[  721.473619][ T1662]  ? lock_release+0x710/0x710
[  721.479949][ T1662]  ? iget5_locked+0xcc/0x2d0
[  721.484694][ T1662]  ? lock_downgrade+0x6d0/0x6d0
[  721.491122][ T1662]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.496626][ T1662]  ? _raw_spin_lock+0x2a/0x40
[  721.502807][ T1662]  ? iget5_locked+0xac/0x2d0
[  721.508422][ T1662]  ? iget5_locked+0xac/0x2d0
[  721.513399][ T1662]  ? fuse_inode_eq+0x80/0x80
[  721.519472][ T1662]  ? fuse_iget+0x271/0x610
[  721.524197][ T1662]  ? fuse_change_attributes+0x610/0x610
[  721.531336][ T1662]  ? fuse_readdir_uncached+0x11e0/0x1730
[  721.538077][ T1662]  ? fuse_emit+0xc10/0xc10
[  721.542541][ T1662]  ? lockdep_hardirqs_on_prepare+0x420/0x420
[  721.550345][ T1662]  ? __mutex_lock+0x61b/0x1110
[  721.555195][ T1662]  ? lock_release+0x710/0x710
[  721.561910][ T1662]  ? fuse_readdir+0x842/0x1830
[  721.566733][ T1662]  ? down_read_killable+0x1a4/0x4a0
[  721.573559][ T1662]  ? down_read_interruptible+0x4a0/0x4a0
[  721.581155][ T1662]  ? security_file_permission+0x304/0x560
[  721.586926][ T1662]  ? iterate_dir+0x4eb/0x660
[  721.593146][ T1662]  ? __x64_sys_getdents+0x13a/0x2b0
[  721.599499][ T1662]  ? __ia32_sys_old_readdir+0x1c0/0x1c0
[  721.605091][ T1662]  ? filldir64+0x6a0/0x6a0
[  721.611159][ T1662]  ? syscall_enter_from_user_mode+0x1d/0x50
[  721.618096][ T1662]  ? do_syscall_64+0x2d/0x70
[  721.622740][ T1662]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  721.630620][ T1662] 
[  721.630620][ T1662] Showing all locks held in the system:
[  721.639482][ T1662] 1 lock held by khungtaskd/1662:
[  721.644627][ T1662]  #0: ffffffff8b793ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x28c
[  721.656146][ T1662] 1 lock held by in:imklog/8168:
[  721.662306][ T1662]  #0: ffff88801171c870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[  721.672849][ T1662] 2 locks held by kworker/0:0/8483:
[  721.679417][ T1662]  #0: ffff8880b9c34c58 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x235/0x21b0
[  721.689366][ T1662]  #1: ffff8880b9c20088 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x305/0x440
[  721.702305][ T1662] 3 locks held by syz-executor221/8492:
[  721.710185][ T1662] 
[  721.712919][ T1662] =============================================
[  721.712919][ T1662] 
[  721.723061][ T1662] Kernel panic - not syncing: hung_task: blocked tasks
[  721.729939][ T1662] CPU: 0 PID: 1662 Comm: khungtaskd Not tainted 5.10.0-next-20201223-syzkaller #0
[  721.739155][ T1662] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  721.749229][ T1662] Call Trace:
[  721.752530][ T1662]  dump_stack+0x107/0x163
[  721.756891][ T1662]  panic+0x343/0x77f
[  721.760809][ T1662]  ? __warn_printk+0xf3/0xf3
[  721.765428][ T1662]  ? watchdog.cold+0x146/0x31d
[  721.770323][ T1662]  watchdog.cold+0x157/0x31d
[  721.774968][ T1662]  ? trace_sched_process_hang+0x2a0/0x2a0
[  721.780719][ T1662]  kthread+0x3b1/0x4a0
[  721.784833][ T1662]  ? kthread_create_worker_on_cpu+0xf0/0xf0
[  721.790756][ T1662]  ret_from_fork+0x1f/0x30
[  721.796119][ T1662] Kernel Offset: disabled
[  721.800460][ T1662] Rebooting in 86400 seconds..