INFO: task jbd2/sda1-8:2822 blocked in I/O wait for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/sda1-8     state:D
 stack:27256 pid:2822  tgid:2822  ppid:2      task_flags:0x240040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5388 [inline]
 __schedule+0x1138/0x47e0 kernel/sched/core.c:7189
 __schedule_loop kernel/sched/core.c:7268 [inline]
 schedule+0xdd/0x390 kernel/sched/core.c:7283
 io_schedule+0x8a/0xf0 kernel/sched/core.c:8110
 bit_wait_io+0xd/0xe0 kernel/sched/wait_bit.c:250
 __wait_on_bit+0x65/0x180 kernel/sched/wait_bit.c:52
 out_of_line_wait_on_bit+0xdc/0x110 kernel/sched/wait_bit.c:67
 wait_on_bit_io include/linux/wait_bit.h:105 [inline]
 __wait_on_buffer+0x64/0x70 fs/buffer.c:123
 wait_on_buffer include/linux/buffer_head.h:420 [inline]
 journal_wait_on_commit_record fs/jbd2/commit.c:171 [inline]
 jbd2_journal_commit_transaction+0x494c/0x6870 fs/jbd2/commit.c:910
 kjournald2+0x200/0x760 fs/jbd2/journal.c:201
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x69a/0xc80 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:1/11:
5 locks held by kworker/1:0/23:
1 lock held by khungtaskd/30:
 #0: 
ffffffff896de960
 (
rcu_read_lock
){....}-{1:3}
, at: rcu_lock_acquire include/linux/rcupdate.h:300 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
, at: debug_show_all_locks+0x3d/0x184 kernel/locking/lockdep.c:6775
6 locks held by kworker/1:2/799:
3 locks held by kworker/u8:7/1459:
 #0: 
ffff888112be6140
 (
(wq_completion)ipv6_addrconf
){+.+.}-{0:0}
, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3289
 #1: 
ffffc90004adfd18
 (
(work_completion)(&(&net->ipv6.addr_chk_work)->work)
){+.+.}-{0:0}
, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3290
 #2: 
ffffffff8aaf4fe0
 (
rtnl_mutex
){+.+.}-{4:4}
, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:571 [inline]
, at: try_to_wake_up+0xb5/0x1450 kernel/sched/core.c:4190
4 locks held by kworker/u8:8/1593:
 #0: 
ffff888100e98940
 (
(wq_completion)netns
){+.+.}-{0:0}, at: process_one_work+0x12d6/0x1980 kernel/workqueue.c:3289
 #1: 
ffffc9000504fd18 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x973/0x1980 kernel/workqueue.c:3290
 #2: 
ffffffff8aadc468 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0xb8/0x920 net/core/net_namespace.c:673
 #3: ffffffff8aaf4fe0 (rtnl_mutex){+.+.}-{4:4}, at: ops_exit_rtnl_list net/core/net_namespace.c:173 [inline]
 #3: ffffffff8aaf4fe0 (rtnl_mutex){+.+.}-{4:4}, at: ops_undo_list+0x7ec/0xab0 net/core/net_namespace.c:248
2 locks held by kworker/u8:10/1627:
 #0: 
ffff8881f56396e0
 (
&rq->__lock
){-.-.}-{2:2}
, at: raw_spin_rq_lock_nested kernel/sched/core.c:652 [inline]
, at: raw_spin_rq_lock kernel/sched/sched.h:1624 [inline]
, at: rq_lock kernel/sched/sched.h:1968 [inline]
, at: __schedule+0x2bc/0x47e0 kernel/sched/core.c:7064
 #1: 
ffff8881f5639818
 (
&cfs_rq->removed.lock
){-.-.}-{2:2}
, at: update_cfs_rq_load_avg+0xb3/0x550 kernel/sched/fair.c:4853
1 lock held by udevd/2862:
 #0: 
ffff888100e87980
 (
&root->kernfs_rwsem){++++}-{4:4}, at: kernfs_dop_revalidate+0xa5/0x7e0 fs/kernfs/dir.c:1218
2 locks held by getty/2926:
 #0: 
ffff8881131140a0 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900000452e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x419/0x14f0 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/2975:
1 lock held by syz-executor/2978:
5 locks held by kworker/1:3/4099:
4 locks held by udevd/5206:
 #0: