INFO: task syz-executor410:4316 blocked for more than 143 seconds.
      Not tainted 6.1.141-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor410 state:D stack:0     pid:4316  ppid:4315   flags:0x0000000c
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191
 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x324 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1182
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1189
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor410:4317 blocked for more than 143 seconds.
      Not tainted 6.1.141-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor410 state:D
 stack:0     pid:4317  ppid:4315   flags:0x0000000c
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191
 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x324 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1182
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1189
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor410:4318 blocked for more than 143 seconds.
      Not tainted 6.1.141-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor410 state:D
 stack:0     pid:4318  ppid:4315   flags:0x0000000c
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191
 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x324 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1182
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1189
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor410:4319 blocked for more than 143 seconds.
      Not tainted 6.1.141-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor410 state:D
 stack:0     pid:4319  ppid:4315   flags:0x0000000c
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191
 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x324 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1182
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1189
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
INFO: task syz-executor410:4320 blocked for more than 144 seconds.
      Not tainted 6.1.141-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor410 state:D
 stack:0     pid:4320  ppid:4315   flags:0x0000000c
Call trace:
 __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555
 context_switch kernel/sched/core.c:5244 [inline]
 __schedule+0xdd4/0x1b2c kernel/sched/core.c:6561
 schedule+0xc4/0x170 kernel/sched/core.c:6637
 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191
 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x324 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1470
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xe8/0x108 fs/super.c:363
 cleanup_mnt+0x37c/0x404 fs/namespace.c:1182
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1189
 task_work_run+0x1ec/0x270 kernel/task_work.c:203
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x1f70/0x2b0c arch/arm64/kernel/signal.c:1137
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x98/0x138 arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffff800015247670
 (
rcu_tasks.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517
1 lock held by rcu_tasks_trace/13:
 #0: 
ffff800015247e90
 (
rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517
2 locks held by kworker/1:0/22:
1 lock held by khungtaskd/28:
 #0: 
ffff800015246d00
 (
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349
4 locks held by kworker/u4:2/32:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: 
ffff80001cc87c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: 
ffff0000d6252650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline]
, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698
 #3: 
ffff0000e1aa5658
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211
4 locks held by kworker/u4:3/149:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: 
ffff80001dfd7c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: 
ffff0000d4f7c650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline]
, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698
 #3: 
ffff0000e1aa4e98
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211
4 locks held by kworker/u4:4/547:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: 
ffff800020cc7c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: 
ffff0000dec76650
 (
sb_internal
#2
){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline]
){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698
 #3: 
ffff0000e1ab2f98
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211
2 locks held by getty/4070:
 #0: 
ffff0000d5f62098
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: 
ffff80001ce502f0
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c drivers/tty/n_tty.c:2198
2 locks held by syz-executor410/4316:
 #0: 
ffff0000deb520e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe0/0x108 fs/super.c:362
 #1: 
ffff0000ce3d07d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2737
2 locks held by syz-executor410/4317:
 #0: 
ffff0000dec760e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe0/0x108 fs/super.c:362
 #1: 
ffff0000ce3d67d0
 (
&bdi->wb_switch_rwsem){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2737
2 locks held by syz-executor410/4318:
 #0: 
ffff0000d63f40e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe0/0x108 fs/super.c:362
 #1: 
ffff0000ce4547d0
 (&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2737
2 locks held by syz-executor410/4319:
 #0: 
ffff0000d62520e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe0/0x108 fs/super.c:362
 #1: 
ffff0000ce45a7d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2737
2 locks held by syz-executor410/4320:
 #0: 
ffff0000d4f7c0e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe0/0x108 fs/super.c:362
 #1: ffff0000ce4787d0 (&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2737
4 locks held by kworker/u4:5/4337:
 #0: 
ffff0000c2e4d938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: 
ffff8000208f7c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: 
ffff0000d63f4650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline]
, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698
 #3: 
ffff0000e1b3a7d8
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211
4 locks held by kworker/u4:6/4360:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265
 #1: 
ffff800020ae7c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267
 #2: 
ffff0000deb52650
 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline]
 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698
 #3: 
ffff0000e1b3af98
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211
2 locks held by kworker/0:4/4382:

=============================================