INFO: task syz-executor:6531 blocked for more than 143 seconds.
      Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:0     pid:6531  tgid:6531  ppid:1      task_flags:0x400140 flags:0x00000011
Call trace:
 __switch_to+0x418/0x87c arch/arm64/kernel/process.c:741 (T)
 context_switch kernel/sched/core.c:5397 [inline]
 __schedule+0x141c/0x2a14 kernel/sched/core.c:6786
 __schedule_loop kernel/sched/core.c:6864 [inline]
 schedule+0xb4/0x230 kernel/sched/core.c:6879
 __bch2_fs_stop+0x5f8/0x800 fs/bcachefs/super.c:696
 bch2_put_super+0x40/0x50 fs/bcachefs/fs.c:2365
 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643
 bch2_kill_sb+0x40/0x58 fs/bcachefs/fs.c:2618
 deactivate_locked_super+0xc4/0x12c fs/super.c:474
 deactivate_super+0xe0/0x100 fs/super.c:507
 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x174/0x1f4 arch/arm64/kernel/entry-common.c:155
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline]
 el0_svc+0xb8/0x180 arch/arm64/kernel/entry-common.c:880
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596

Showing all locks held in the system:
1 lock held by ksoftirqd/0/15:
1 lock held by khungtaskd/32:
 #0: ffff80008f869980 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:330
2 locks held by kworker/u8:5/254:
2 locks held by getty/6294:
 #0: ffff0000d6cf10a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff80009ba3e2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x34c/0xfa4 drivers/tty/n_tty.c:2222
2 locks held by udevd/6521:
2 locks held by udevd/6523:
1 lock held by syz-executor/6531:
 #0: ffff0000d4b0e0e0 (&type->s_umount_key#85){+.+.}-{4:4}, at: __super_lock fs/super.c:57 [inline]
 #0: ffff0000d4b0e0e0 (&type->s_umount_key#85){+.+.}-{4:4}, at: __super_lock_excl fs/super.c:72 [inline]
 #0: ffff0000d4b0e0e0 (&type->s_umount_key#85){+.+.}-{4:4}, at: deactivate_super+0xd8/0x100 fs/super.c:506
2 locks held by syz-executor/7599:
1 lock held by syz.4.814/9832:
1 lock held by syz.4.814/9837:
1 lock held by syz.4.814/9847:
 #0: ffff800097918b98 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnl_lock net/netfilter/nfnetlink.c:98 [inline]
 #0: ffff800097918b98 (nfnl_subsys_ipset){+.+.}-{4:4}, at: nfnetlink_rcv_msg+0x870/0xed8 net/netfilter/nfnetlink.c:295
1 lock held by syz.5.820/9849:
 #0: ffff8000928c7ba8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80
1 lock held by syz.5.820/9850:
 #0: ffff8000928c7ba8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:80

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