INFO: task syz-executor.1:2226 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:syz-executor.1 state:D stack: 0 pid: 2226 ppid: 2139 flags:0x00000000 Call Trace: [] context_switch kernel/sched/core.c:4940 [inline] [] __schedule+0x506/0x1048 kernel/sched/core.c:6287 [] schedule+0x66/0x168 kernel/sched/core.c:6366 [] io_schedule+0x5a/0x88 kernel/sched/core.c:8389 [] bit_wait_io+0x12/0x70 kernel/sched/wait_bit.c:209 [] __wait_on_bit+0x7c/0xf6 kernel/sched/wait_bit.c:49 [] out_of_line_wait_on_bit+0x7a/0x92 kernel/sched/wait_bit.c:64 [] wait_on_bit_io include/linux/wait_bit.h:101 [inline] [] do_get_write_access+0x776/0xb18 fs/jbd2/transaction.c:1098 [] jbd2_journal_get_write_access+0xd8/0x124 fs/jbd2/transaction.c:1233 [] __ext4_journal_get_write_access+0x122/0x2b6 fs/ext4/ext4_jbd2.c:233 [] ext4_reserve_inode_write+0x10a/0x164 fs/ext4/inode.c:5763 [] __ext4_mark_inode_dirty+0x100/0x602 fs/ext4/inode.c:5929 [] ext4_dirty_inode+0x90/0xba fs/ext4/inode.c:5966 [] __mark_inode_dirty+0x40a/0xefe fs/fs-writeback.c:2398 [] generic_update_time fs/inode.c:1774 [inline] [] update_time fs/inode.c:1787 [inline] [] touch_atime+0x5ea/0x60e fs/inode.c:1858 [] file_accessed include/linux/fs.h:2504 [inline] [] iterate_dir+0x254/0x386 fs/readdir.c:70 [] __do_sys_getdents64 fs/readdir.c:369 [inline] [] sys_getdents64+0x8a/0x216 fs/readdir.c:354 [] ret_from_syscall+0x0/0x2 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff83d2b3e8 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x32/0x1fa kernel/locking/lockdep.c:6448 1 lock held by klogd/1791: 2 locks held by getty/1958: #0: ffffffe00da35098 (&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 1 lock held by syz-fuzzer/1994: 3 locks held by syz-executor.1/2226: #0: ffffffe00bdca1c0 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: iterate_dir+0x8e/0x386 fs/readdir.c:55 #1: ffffffe009e72460 (sb_writers#4){.+.+}-{0:0}, at: file_accessed include/linux/fs.h:2504 [inline] #1: ffffffe009e72460 (sb_writers#4){.+.+}-{0:0}, at: iterate_dir+0x254/0x386 fs/readdir.c:70 #2: ffffffe009cae990 (jbd2_handle){++++}-{0:0}, at: start_this_handle+0x24a/0xad6 fs/jbd2/transaction.c:427 2 locks held by kworker/0:1/3793: 6 locks held by kworker/u4:1/3810: =============================================