INFO: task kworker/0:13:4547 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:13    state:D stack:    0 pid: 4547 ppid:     2 flags:0x00000008
Workqueue: gfs_recovery gfs2_recover_func
Call trace:
 __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0xe20/0x1c6c kernel/sched/core.c:6395
 schedule+0x11c/0x1c8 kernel/sched/core.c:6478
 io_schedule+0x84/0x160 kernel/sched/core.c:8503
 wait_on_page_bit_common+0x658/0xab4 mm/filemap.c:1356
 wait_on_page_bit+0x58/0x68 mm/filemap.c:1417
 wait_on_page_locked include/linux/pagemap.h:688 [inline]
 gfs2_jhead_process_page+0x1e0/0x6b4 fs/gfs2/lops.c:476
 gfs2_find_jhead+0xc00/0xd40 fs/gfs2/lops.c:597
 gfs2_recover_func+0x578/0x164c fs/gfs2/recovery.c:462
 process_one_work+0x7a4/0x1178 kernel/workqueue.c:2310
 worker_thread+0x8fc/0x103c kernel/workqueue.c:2457
 kthread+0x37c/0x460 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:856
INFO: task syz.0.17:4726 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.17        state:D stack:    0 pid: 4726 ppid:  4624 flags:0x00000009
Call trace:
 __switch_to+0x2f4/0x540 arch/arm64/kernel/process.c:521
 context_switch kernel/sched/core.c:5049 [inline]
 __schedule+0xe20/0x1c6c kernel/sched/core.c:6395
 schedule+0x11c/0x1c8 kernel/sched/core.c:6478
 bit_wait+0x1c/0xac kernel/sched/wait_bit.c:199
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x16c/0x218 kernel/sched/wait_bit.c:64
 wait_on_bit include/linux/wait_bit.h:76 [inline]
 gfs2_recover_journal+0xf0/0x164 fs/gfs2/recovery.c:579
 init_journal+0x1310/0x1dfc fs/gfs2/ops_fstype.c:837
 init_inodes+0xe0/0x2e0 fs/gfs2/ops_fstype.c:891
 gfs2_fill_super+0x129c/0x1a9c fs/gfs2/ops_fstype.c:1249
 get_tree_bdev+0x35c/0x54c fs/super.c:1325
 gfs2_get_tree+0x58/0x1b8 fs/gfs2/ops_fstype.c:1332
 vfs_get_tree+0x90/0x278 fs/super.c:1530
 do_new_mount+0x228/0x804 fs/namespace.c:3034
 path_mount+0x57c/0xfe8 fs/namespace.c:3364
 do_mount fs/namespace.c:3377 [inline]
 __do_sys_mount fs/namespace.c:3585 [inline]
 __se_sys_mount fs/namespace.c:3562 [inline]
 __arm64_sys_mount+0x488/0x5f8 fs/namespace.c:3562
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x28c arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x5c/0x140 arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1d0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffff800014561460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:312
2 locks held by getty/3804:
 #0: ffff0000d4190098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 drivers/tty/tty_ldsem.c:340
 #1: ffff80001bebe2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 drivers/tty/n_tty.c:2158
2 locks held by kworker/0:13/4547:
 #0: ffff0000c711d138 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 kernel/workqueue.c:-1
 #1: ffff80001fb87c40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 kernel/workqueue.c:2285
1 lock held by syz.0.17/4726:
 #0: ffff0000d21580e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x860 fs/super.c:229

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