INFO: task syz-executor:4452 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4452 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2750 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:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 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+0x2038/0x2b28 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-executor:4455 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4455 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2750 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:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 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+0x2038/0x2b28 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-executor:4460 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4460 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2750 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:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 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+0x2038/0x2b28 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-executor:4465 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4465 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2750 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:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 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+0x2038/0x2b28 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-executor:4617 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:0 pid:4617 ppid:1 flags:0x00000009 Call trace: __switch_to+0x2f4/0x568 arch/arm64/kernel/process.c:555 context_switch kernel/sched/core.c:5245 [inline] __schedule+0xddc/0x1b18 kernel/sched/core.c:6562 schedule+0xc4/0x170 kernel/sched/core.c:6638 wb_wait_for_completion+0x150/0x298 fs/fs-writeback.c:191 sync_inodes_sb+0x188/0x824 fs/fs-writeback.c:2750 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:1191 __cleanup_mnt+0x20/0x30 fs/namespace.c:1198 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+0x2038/0x2b28 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: 4 locks held by kworker/u4:0/9: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff80001c7f7c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000de652650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] ffff0000de652650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000f480b758 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000f480b758 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 1 lock held by rcu_tasks_kthre/12: #0: ffff800015227df0 (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: ffff800015228610 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/28: #0: ffff800015227480 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 include/linux/rcupdate.h:349 4 locks held by kworker/u4:2/39: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff80001cd17c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000dd16a650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000dd16a650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e2b8bf18 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] ffff0000e2b8bf18 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 1 lock held by udevd/3935: #0: ffff00019f74f198 (&rq->__lock){-.-.}-{2:2} , at: raw_spin_rq_lock_nested kernel/sched/core.c:538 [inline] , at: raw_spin_rq_lock kernel/sched/sched.h:1362 [inline] , at: rq_lock kernel/sched/sched.h:1652 [inline] , at: __schedule+0x2b8/0x1b18 kernel/sched/core.c:6478 2 locks held by getty/4080: #0: ffff0000d657f098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c drivers/tty/tty_ldsem.c:340 #1: ffff80001ce332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c drivers/tty/n_tty.c:2198 4 locks held by kworker/u4:5/4411: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800020a77c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000dd22e650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000dd22e650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e55f08d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e55f08d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 2 locks held by kworker/1:11/4441: 2 locks held by syz-executor/4452: #0: ffff0000f0e380e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000cea3a7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000cea3a7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by syz-executor/4455: #0: ffff0000dd16a0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000cea487d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000cea487d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by syz-executor/4460: #0: ffff0000de6520e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000cea4e7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000cea4e7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by syz-executor/4465: #0: ffff0000d0eea0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000ceadc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000ceadc7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 4 locks held by kworker/u4:6/4503: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800020f17c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000f0e38650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000f0e38650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e2b8ce98 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e2b8ce98 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 4 locks held by kworker/u4:7/4536: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021107c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000f011e650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000f011e650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e56046d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e56046d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 4 locks held by kworker/u4:8/4562: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff8000211e7c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000d0eea650 ( sb_internal #2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e2b8c6d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e2b8c6d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 4 locks held by kworker/u4:9/4615: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021247c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000c0946650 ( sb_internal #2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000f480d658 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000f480d658 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 2 locks held by syz-executor/4617: #0: ffff0000c09460e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000ceae27d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000ceae27d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 4 locks held by kworker/u4:10/4629: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021847c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000dcdd4650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000dcdd4650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e56027d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e56027d8 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 2 locks held by syz-executor/4656: #0: ffff0000cbbf80e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000ceaf87d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] ffff0000ceaf87d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by syz-executor/4677: #0: ffff0000dcb640e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000ceafe7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000ceafe7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by syz-executor/4678: #0: ffff0000dcdd40e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000ceb7c7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000ceb7c7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by syz-executor/4681: #0: ffff0000dd22e0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000ceb8a7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 2 locks held by kworker/u4:11/4690: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021a67c20 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 4 locks held by kworker/u4:12/4692: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021a27c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000cbbf8650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000cbbf8650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e2b8de18 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e2b8de18 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 2 locks held by syz-executor/4731: #0: ffff0000f011e0e0 (&type->s_umount_key#51){+.+.}-{3:3}, at: deactivate_super+0xe0/0x108 fs/super.c:362 #1: ffff0000cea047d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: bdi_down_write_wb_switch_rwsem fs/fs-writeback.c:362 [inline] #1: ffff0000cea047d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x170/0x824 fs/fs-writeback.c:2748 1 lock held by udevd/4795: 4 locks held by kworker/u4:14/4799: #0: ffff0000c2c2c138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021ef7c20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 #2: ffff0000dcb64650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_one_delalloc fs/xfs/libxfs/xfs_bmap.c:4571 [inline] #2: ffff0000dcb64650 (sb_internal#2){.+.+}-{0:0}, at: xfs_bmapi_convert_delalloc+0x26c/0x1234 fs/xfs/libxfs/xfs_bmap.c:4698 #3: ffff0000e55f0118 (&xfs_nondir_ilock_class){++++}-{3:3}, at: mrupdate_nested fs/xfs/mrlock.h:36 [inline] #3: ffff0000e55f0118 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0x210/0x484 fs/xfs/xfs_inode.c:211 2 locks held by udevd/4836: 2 locks held by kworker/u4:15/4841: #0: ffff0000c0029138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x6b4/0x13a8 kernel/workqueue.c:2265 #1: ffff800021fa7c20 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x6f8/0x13a8 kernel/workqueue.c:2267 1 lock held by syz-executor/4919: 2 locks held by udevd/5139: 2 locks held by syz.3.727/5661: 4 locks held by syz.1.729/5663: 2 locks held by syz.2.730/5664: 1 lock held by syz.4.731/5665: =============================================