INFO: task syz-executor426:4270 blocked for more than 143 seconds.
      Not tainted 6.1.79-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor426 state:D
 stack:0     pid:4270  ppid:4269   flags:0x0000000c
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 wb_wait_for_completion+0x154/0x29c fs/fs-writeback.c:191
 sync_inodes_sb+0x220/0x944 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x328 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1459
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 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+0x9c/0x168 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-executor426:4271 blocked for more than 143 seconds.
      Not tainted 6.1.79-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor426 state:D
 stack:0     pid:4271  ppid:4269   flags:0x0000000c
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 wb_wait_for_completion+0x154/0x29c fs/fs-writeback.c:191
 sync_inodes_sb+0x220/0x944 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x328 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1459
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 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+0x9c/0x168 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-executor426:4272 blocked for more than 143 seconds.
      Not tainted 6.1.79-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor426 state:D stack:0     pid:4272  ppid:4269   flags:0x0000000c
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 wb_wait_for_completion+0x154/0x29c fs/fs-writeback.c:191
 sync_inodes_sb+0x220/0x944 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x328 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1459
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 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+0x9c/0x168 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-executor426:4273 blocked for more than 143 seconds.
      Not tainted 6.1.79-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor426 state:D stack:0     pid:4273  ppid:4269   flags:0x0000000c
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 wb_wait_for_completion+0x154/0x29c fs/fs-writeback.c:191
 sync_inodes_sb+0x220/0x944 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x328 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1459
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 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+0x9c/0x168 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-executor426:4274 blocked for more than 143 seconds.
      Not tainted 6.1.79-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor426 state:D
 stack:0     pid:4274  ppid:4269   flags:0x0000000c
Call trace:
 __switch_to+0x320/0x754 arch/arm64/kernel/process.c:553
 context_switch kernel/sched/core.c:5245 [inline]
 __schedule+0xee4/0x1c98 kernel/sched/core.c:6558
 schedule+0xc4/0x170 kernel/sched/core.c:6634
 wb_wait_for_completion+0x154/0x29c fs/fs-writeback.c:191
 sync_inodes_sb+0x220/0x944 fs/fs-writeback.c:2739
 sync_filesystem+0x160/0x218 fs/sync.c:64
 generic_shutdown_super+0x70/0x328 fs/super.c:474
 kill_block_super+0x70/0xdc fs/super.c:1459
 deactivate_locked_super+0xac/0x124 fs/super.c:332
 deactivate_super+0xf0/0x110 fs/super.c:363
 cleanup_mnt+0x394/0x41c fs/namespace.c:1186
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193
 task_work_run+0x240/0x2f0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2148/0x3474 arch/arm64/kernel/signal.c:1132
 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+0x9c/0x168 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:
4 locks held by kworker/u4:1/11:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265
 #1: 
ffff800019e37c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267
 #2: 
ffff0000d945e650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_delalloc+0x21c/0x10b0 fs/xfs/libxfs/xfs_bmap.c:4521
 #3: 
ffff0000df94ce98
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x218/0x4e4 fs/xfs/xfs_inode.c:211
1 lock held by rcu_tasks_kthre/12:
 #0: 
ffff800015a15070
 (
rcu_tasks.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
 #0: 
ffff800015a15870
 (
rcu_tasks_trace.tasks_gp_mutex
){+.+.}-{3:3}
, at: rcu_tasks_one_gp+0x44/0xcf4 kernel/rcu/tasks.h:516
5 locks held by kworker/1:0/22:
1 lock held by khungtaskd/28:
 #0: 
ffff800015a14ea0
 (
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:318
4 locks held by kworker/u4:2/39:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265
 #1: 
ffff80001b2a7c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267
 #2: 
ffff0000d87d4650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_delalloc+0x21c/0x10b0 fs/xfs/libxfs/xfs_bmap.c:4521
 #3: 
ffff0000df949858
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x218/0x4e4 fs/xfs/xfs_inode.c:211
2 locks held by getty/3991:
 #0: 
ffff0000d6093098
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340
 #1: 
ffff80001bca32f0
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}
, at: n_tty_read+0x414/0x1214 drivers/tty/n_tty.c:2188
4 locks held by kworker/u4:0/4251:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265
 #1: 
ffff800022497c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267
 #2: 
ffff0000cd52e650 (sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_delalloc+0x21c/0x10b0 fs/xfs/libxfs/xfs_bmap.c:4521
 #3: 
ffff0000df94d658
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x218/0x4e4 fs/xfs/xfs_inode.c:211
2 locks held by syz-executor426/4270:
 #0: 
ffff0000dee700e0
 (&type->s_umount_key#40){+.+.}-{3:3}, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: 
ffff0000cebdc7d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x208/0x944 fs/fs-writeback.c:2737
2 locks held by syz-executor426/4271:
 #0: 
ffff0000d945e0e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: 
ffff0000cebf27d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x208/0x944 fs/fs-writeback.c:2737
2 locks held by syz-executor426/4272:
 #0: 
ffff0000cd52e0e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: 
ffff0000cec007d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x208/0x944 fs/fs-writeback.c:2737
2 locks held by syz-executor426/4273:
 #0: 
ffff0000d87d40e0
 (
&type->s_umount_key
#40
){+.+.}-{3:3}
, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: 
ffff0000cec067d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x208/0x944 fs/fs-writeback.c:2737
2 locks held by syz-executor426/4274:
 #0: 
ffff0000ded0a0e0
 (
&type->s_umount_key
#40){+.+.}-{3:3}
, at: deactivate_super+0xe8/0x110 fs/super.c:362
 #1: 
ffff0000cecd47d0
 (
&bdi->wb_switch_rwsem
){+.+.}-{3:3}
, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline]
, at: sync_inodes_sb+0x208/0x944 fs/fs-writeback.c:2737
4 locks held by kworker/u4:4/4316:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265
 #1: 
ffff80001e137c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267
 #2: 
ffff0000dee70650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_delalloc+0x21c/0x10b0 fs/xfs/libxfs/xfs_bmap.c:4521
 #3: 
ffff0000e21baf98
 (&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x218/0x4e4 fs/xfs/xfs_inode.c:211
4 locks held by kworker/u4:5/4323:
 #0: 
ffff0000c2e4d938
 (
(wq_completion)writeback
){+.+.}-{0:0}
, at: process_one_work+0x664/0x1404 kernel/workqueue.c:2265
 #1: 
ffff80001dd87c20
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_one_work+0x6a8/0x1404 kernel/workqueue.c:2267
 #2: 
ffff0000ded0a650
 (
sb_internal
#2
){.+.+}-{0:0}
, at: xfs_bmapi_convert_delalloc+0x21c/0x10b0 fs/xfs/libxfs/xfs_bmap.c:4521
 #3: 
ffff0000e21bb758
 (
&xfs_nondir_ilock_class
){++++}-{3:3}
, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline]
, at: xfs_ilock+0x218/0x4e4 fs/xfs/xfs_inode.c:211

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