INFO: task syz-executor:7144 blocked for more than 143 seconds.
      Not tainted 6.14.0-rc3-syzkaller-ga1c24ab82279 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:7144  tgid:7144  ppid:1      task_flags:0x400140 flags:0x0000000d
Call trace:
 __switch_to+0x414/0x788 arch/arm64/kernel/process.c:701 (T)
 context_switch kernel/sched/core.c:5378 [inline]
 __schedule+0x1360/0x257c kernel/sched/core.c:6765
 __schedule_loop kernel/sched/core.c:6842 [inline]
 schedule+0xbc/0x238 kernel/sched/core.c:6857
 __bch2_fs_stop+0x374/0x570 fs/bcachefs/super.c:647
 bch2_put_super+0x40/0x50 fs/bcachefs/fs.c:2083
 generic_shutdown_super+0x12c/0x2bc fs/super.c:642
 bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2312
 deactivate_locked_super+0xc4/0x12c fs/super.c:473
 deactivate_super+0xe0/0x100 fs/super.c:506
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1413
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1420
 task_work_run+0x230/0x2e0 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline]
 el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745
 el0t_64_sync_handler+0x84/0x108 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/31:
 #0: ffff80008fda2220 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:336
2 locks held by getty/6197:
 #0: ffff0000d2c430a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009bcdb2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/7144:
 #0: ffff0000e7fd20e0 (&type->s_umount_key#50){+.+.}-{4:4}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff0000e7fd20e0 (&type->s_umount_key#50){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff0000e7fd20e0 (&type->s_umount_key#50){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:505
2 locks held by syz.1.404/10905:
 #0: ffff0000f1980920 (&c->sb_lock){+.+.}-{4:4}, at: bch2_fs_alloc fs/bcachefs/super.c:833 [inline]
 #0: ffff0000f1980920 (&c->sb_lock){+.+.}-{4:4}, at: bch2_fs_open+0x1238/0x299c fs/bcachefs/super.c:2064
 #1: ffff0000f19849b0 (&c->mark_lock){++++}-{0:0}, at: bch2_sb_replicas_to_cpu_replicas+0x198/0x290 fs/bcachefs/replicas.c:600

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