INFO: task syz-executor.1:6207 blocked for more than 143 seconds.
      Not tainted 6.8.0-rc2-syzkaller-g41bccc98fb79 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:0     pid:6207  tgid:6207  ppid:1      flags:0x0000000d
Call trace:
 __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5400 [inline]
 __schedule+0x1498/0x24b4 kernel/sched/core.c:6727
 __schedule_loop kernel/sched/core.c:6802 [inline]
 schedule+0xb8/0x19c kernel/sched/core.c:6817
 io_schedule+0x8c/0x12c kernel/sched/core.c:9023
 folio_wait_bit_common+0x65c/0xb90 mm/filemap.c:1274
 folio_wait_bit+0x30/0x40 mm/filemap.c:1413
 folio_wait_writeback+0x14c/0x3bc mm/page-writeback.c:3061
 __filemap_fdatawait_range+0x16c/0x304 mm/filemap.c:523
 filemap_fdatawait_keep_errors+0x34/0xb0 mm/filemap.c:618
 wait_sb_inodes fs/fs-writeback.c:2639 [inline]
 sync_inodes_sb+0x70c/0x944 fs/fs-writeback.c:2761
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x2b8 fs/super.c:625
 kill_block_super+0x44/0x90 fs/super.c:1680
 deactivate_locked_super+0xc4/0x144 fs/super.c:477
 deactivate_super+0xe0/0x100 fs/super.c:510
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1267
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1274
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 do_notify_resume+0x214c/0x393c arch/arm64/kernel/signal.c:1305
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:144 [inline]
 el0_svc+0x9c/0x158 arch/arm64/kernel/entry-common.c:679
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

Showing all locks held in the system:
1 lock held by khungtaskd/29:
 #0: ffff80008ee44100 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:297
1 lock held by klogd/5773:
2 locks held by getty/5933:
 #0: ffff0000d37940a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: ffff800093fa02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 drivers/tty/n_tty.c:2201
2 locks held by syz-executor.1/6207:
 #0: ffff00011dbf80e0 (&type->s_umount_key#73){+.+.}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff00011dbf80e0 (&type->s_umount_key#73){+.+.}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff00011dbf80e0 (&type->s_umount_key#73){+.+.}-{3:3}, at: deactivate_super+0xd8/0x100 fs/super.c:509
 #1: ffff00011dbf8918 (&s->s_sync_lock){+.+.}-{3:3}, at: wait_sb_inodes fs/fs-writeback.c:2578 [inline]
 #1: ffff00011dbf8918 (&s->s_sync_lock){+.+.}-{3:3}, at: sync_inodes_sb+0x2a8/0x944 fs/fs-writeback.c:2761

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