INFO: task jbd2/vda-8:1770 blocked for more than 430 seconds.
      Not tainted 5.15.0-rc1-syzkaller-00001-g64a19591a293 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jbd2/vda-8      state:D stack:    0 pid: 1770 ppid:     2 flags:0x00000000
Call Trace:
[<ffffffff82bdaf8a>] context_switch kernel/sched/core.c:4940 [inline]
[<ffffffff82bdaf8a>] __schedule+0x506/0x1048 kernel/sched/core.c:6287
[<ffffffff82bdbb32>] schedule+0x66/0x168 kernel/sched/core.c:6366
[<ffffffff82bdbce2>] io_schedule+0x5a/0x88 kernel/sched/core.c:8389
[<ffffffff82bdc8ca>] bit_wait_io+0x12/0x70 kernel/sched/wait_bit.c:209
[<ffffffff82bdc4c6>] __wait_on_bit+0x7c/0xf6 kernel/sched/wait_bit.c:49
[<ffffffff82bdc5ba>] out_of_line_wait_on_bit+0x7a/0x92 kernel/sched/wait_bit.c:64
[<ffffffff804c2b8c>] wait_on_bit_io include/linux/wait_bit.h:101 [inline]
[<ffffffff804c2b8c>] __wait_on_buffer+0x68/0x7c fs/buffer.c:122
[<ffffffff8071b480>] wait_on_buffer include/linux/buffer_head.h:356 [inline]
[<ffffffff8071b480>] jbd2_journal_commit_transaction+0x2b6a/0x4716 fs/jbd2/commit.c:858
[<ffffffff8072946a>] kjournald2+0x11a/0x54e fs/jbd2/journal.c:213
[<ffffffff800770a8>] kthread+0x25c/0x2c6 kernel/kthread.c:319
[<ffffffff800051aa>] ret_from_exception+0x0/0x14
INFO: task dhcpcd-run-hook:2003 blocked for more than 430 seconds.
      Not tainted 5.15.0-rc1-syzkaller-00001-g64a19591a293 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd-run-hook state:D stack:    0 pid: 2003 ppid:  1836 flags:0x00000000
Call Trace:
[<ffffffff82bdaf8a>] context_switch kernel/sched/core.c:4940 [inline]
[<ffffffff82bdaf8a>] __schedule+0x506/0x1048 kernel/sched/core.c:6287
[<ffffffff82bdbb32>] schedule+0x66/0x168 kernel/sched/core.c:6366
[<ffffffff82bdbce2>] io_schedule+0x5a/0x88 kernel/sched/core.c:8389
[<ffffffff82bdc8ca>] bit_wait_io+0x12/0x70 kernel/sched/wait_bit.c:209
[<ffffffff82bdc4c6>] __wait_on_bit+0x7c/0xf6 kernel/sched/wait_bit.c:49
[<ffffffff82bdc5ba>] out_of_line_wait_on_bit+0x7a/0x92 kernel/sched/wait_bit.c:64
[<ffffffff807158f2>] wait_on_bit_io include/linux/wait_bit.h:101 [inline]
[<ffffffff807158f2>] do_get_write_access+0x776/0xb18 fs/jbd2/transaction.c:1098
[<ffffffff80715d6c>] jbd2_journal_get_write_access+0xd8/0x124 fs/jbd2/transaction.c:1233
[<ffffffff80628504>] __ext4_journal_get_write_access+0x122/0x2b6 fs/ext4/ext4_jbd2.c:233
[<ffffffff80670020>] ext4_reserve_inode_write+0x10a/0x164 fs/ext4/inode.c:5763
[<ffffffff806704b2>] __ext4_mark_inode_dirty+0x100/0x602 fs/ext4/inode.c:5929
[<ffffffff8067b34e>] ext4_dirty_inode+0x90/0xba fs/ext4/inode.c:5966
[<ffffffff804a25f8>] __mark_inode_dirty+0x40a/0xefe fs/fs-writeback.c:2398
[<ffffffff80475b40>] generic_update_time fs/inode.c:1774 [inline]
[<ffffffff80475b40>] update_time fs/inode.c:1787 [inline]
[<ffffffff80475b40>] touch_atime+0x5ea/0x60e fs/inode.c:1858
[<ffffffff802ce6c4>] file_accessed include/linux/fs.h:2504 [inline]
[<ffffffff802ce6c4>] filemap_read+0x792/0x79c mm/filemap.c:2700
[<ffffffff802ce906>] generic_file_read_iter+0x238/0x2e6 mm/filemap.c:2779
[<ffffffff806467dc>] ext4_file_read_iter+0x126/0x336 fs/ext4/file.c:130
[<ffffffff8043114a>] call_read_iter include/linux/fs.h:2157 [inline]
[<ffffffff8043114a>] new_sync_read+0x21e/0x340 fs/read_write.c:404
[<ffffffff8043464a>] vfs_read+0x290/0x2e6 fs/read_write.c:485
[<ffffffff80434a4a>] ksys_read+0xb4/0x1b8 fs/read_write.c:623
[<ffffffff80434b76>] __do_sys_read fs/read_write.c:633 [inline]
[<ffffffff80434b76>] sys_read+0x28/0x36 fs/read_write.c:631
[<ffffffff8000519c>] ret_from_syscall+0x0/0x2

Showing all locks held in the system:
1 lock held by khungtaskd/28:
 #0: ffffffff83d2b3e8 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x32/0x1fa kernel/locking/lockdep.c:6448
6 locks held by kworker/u4:6/903:
2 locks held by getty/1963:
 #0: ffffffe00dacf098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x48 drivers/tty/tty_ldsem.c:340
 #1: ffffffd0107f52e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x9a0/0xafa drivers/tty/n_tty.c:2113
2 locks held by dhcpcd-run-hook/2003:
 #0: ffffffe009dde460 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2504 [inline]
 #0: ffffffe009dde460 (sb_writers#4){.+.+}-{0:0}, at: filemap_read+0x792/0x79c mm/filemap.c:2700
 #1: ffffffe009d1a990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x24a/0xad6 fs/jbd2/transaction.c:427

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