INFO: task syz-executor
INFO: task syz-executor.0:6696 blocked for more than 143 seconds.
      Not tainted 6.15.0-rc4-syzkaller-00028-ge0f4c8dd9d2d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:0     pid:6696  tgid:6696  ppid:1      task_flags:0x400140 flags:0x00000009
Call trace:
 __switch_to+0x404/0x778 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5382 [inline]
 __schedule+0x13b0/0x28d4 kernel/sched/core.c:6767
 __schedule_loop kernel/sched/core.c:6845 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6860
 bit_wait+0x1c/0xac kernel/sched/wait_bit.c:237
 __wait_on_bit kernel/sched/wait_bit.c:49 [inline]
 out_of_line_wait_on_bit+0x158/0x1f0 kernel/sched/wait_bit.c:64
 wait_on_bit include/linux/wait_bit.h:77 [inline]
 gfs2_glock_wait+0xbc/0x298 fs/gfs2/glock.c:1352
 gfs2_glock_nq+0xf28/0x1640 fs/gfs2/glock.c:1595
 gfs2_glock_nq_init fs/gfs2/glock.h:238 [inline]
 __gfs2_lookup+0x120/0x278 fs/gfs2/inode.c:906
 gfs2_lookup+0x2c/0x3c fs/gfs2/inode.c:931
 __lookup_slow+0x254/0x378 fs/namei.c:1817
 lookup_slow+0x5c/0x80 fs/namei.c:1834
 walk_component+0x270/0x364 fs/namei.c:2138
 lookup_last fs/namei.c:2636 [inline]
 path_lookupat+0x13c/0x3d0 fs/namei.c:2660
 filename_lookup+0x1ac/0x454 fs/namei.c:2689
 user_path_at+0x50/0x74 fs/namei.c:3120
 ksys_umount fs/namespace.c:2164 [inline]
 __do_sys_umount fs/namespace.c:2172 [inline]
 __se_sys_umount fs/namespace.c:2170 [inline]
 __arm64_sys_umount+0xf0/0x174 fs/namespace.c:2170
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600

Showing all locks held in the system:
1 lock held by khungtaskd/32:
 #0: ffff80008f4e7d20 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
2 locks held by pr/ttyAMA0/46:
3 locks held by kworker/u8:7/318:
2 locks held by getty/6247:
 #0: ffff0000d75610a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009b5eb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa0 drivers/tty/n_tty.c:2222
1 lock held by syz-executor.0/6696:
 #0: ffff0000def087f8 (&type->i_mutex_dir_key#8){.+.+}-{4:4}, at: inode_lock_shared include/linux/fs.h:877 [inline]
 #0: ffff0000def087f8 (&type->i_mutex_dir_key#8){.+.+}-{4:4}, at: lookup_slow+0x4c/0x80 fs/namei.c:1833

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