INFO: task udevd:6062 blocked for more than 143 seconds.
      Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd           state:D stack:0     pid:6062  ppid:3942   flags:0x00000000
Call trace:
 __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0x6a4/0xb34 kernel/sched/core.c:6606
 schedule+0x64/0xa4 kernel/sched/core.c:6682
 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6741
 __mutex_lock_common+0x964/0xf64 kernel/locking/mutex.c:679
 __mutex_lock kernel/locking/mutex.c:747 [inline]
 mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799
 blkdev_get_by_dev+0x100/0x4e0 block/bdev.c:813
 blkdev_open+0x84/0xd8 block/fops.c:478
 do_dentry_open+0x36c/0x750 fs/open.c:882
 vfs_open+0x38/0x48 fs/open.c:1013
 do_open fs/namei.c:3557 [inline]
 path_openat+0xee4/0x1330 fs/namei.c:3714
 do_filp_open+0xd0/0x1a8 fs/namei.c:3741
 do_sys_openat2+0xb8/0x22c fs/open.c:1310
 do_sys_open fs/open.c:1326 [inline]
 __do_sys_openat fs/open.c:1342 [inline]
 __se_sys_openat fs/open.c:1337 [inline]
 __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x14c arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591
INFO: task syz-executor.2:15415 blocked for more than 143 seconds.
      Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2  state:D stack:0     pid:15415 ppid:4467   flags:0x0000000c
Call trace:
 __switch_to+0x210/0x424 arch/arm64/kernel/process.c:556
 context_switch kernel/sched/core.c:5293 [inline]
 __schedule+0x6a4/0xb34 kernel/sched/core.c:6606
 schedule+0x64/0xa4 kernel/sched/core.c:6682
 io_schedule+0x38/0x60 kernel/sched/core.c:8868
 folio_wait_bit_common+0x3d8/0x8e8 mm/filemap.c:1297
 __folio_lock mm/filemap.c:1660 [inline]
 folio_lock include/linux/pagemap.h:938 [inline]
 __filemap_get_folio+0x38c/0xa68 mm/filemap.c:1932
 truncate_inode_pages_range+0x240/0x91c mm/truncate.c:377
 truncate_inode_pages+0x2c/0x3c mm/truncate.c:448
 kill_bdev block/bdev.c:76 [inline]
 blkdev_flush_mapping+0x90/0x190 block/bdev.c:662
 blkdev_put_whole block/bdev.c:693 [inline]
 blkdev_put+0x24c/0x374 block/bdev.c:953
 blkdev_close+0x24/0x38 block/fops.c:492
 __fput+0x198/0x3e4 fs/file_table.c:320
 ____fput+0x20/0x30 fs/file_table.c:348
 task_work_run+0x100/0x148 kernel/task_work.c:179
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x294/0xc24 kernel/exit.c:867
 do_group_exit+0x98/0xcc kernel/exit.c:1012
 get_signal+0xc90/0xd60 kernel/signal.c:2859
 do_signal arch/arm64/kernel/signal.c:1246 [inline]
 do_notify_resume+0x1d4/0x2628 arch/arm64/kernel/signal.c:1299
 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/0x14c arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
 #0: ffff80000d4955c8 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x448 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
 #0: ffff80000d495c18 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x448 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
 #0: ffff80000d4954a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:324
2 locks held by getty/4093:
 #0: ffff0000c66e9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
 #1: ffff80000f6a62f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x28c/0xbc4 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:8/5507:
1 lock held by udevd/6062:
 #0: ffff0000c4b85cc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x100/0x4e0 block/bdev.c:813
1 lock held by syz-executor.2/15415:
 #0: ffff0000c4b85cc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x78/0x374 block/bdev.c:911
1 lock held by syz-executor.2/15560:
 #0: ffff0000c4b85cc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x100/0x4e0 block/bdev.c:813
1 lock held by syz-executor.2/15561:
 #0: ffff0000c4b85cc8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x100/0x4e0 block/bdev.c:813
3 locks held by kworker/1:22/16737:
 #0: ffff0000c0012738 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x274/0x9d0 kernel/workqueue.c:2262
 #1: ffff800014fb3d80 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x2a0/0x9d0 kernel/workqueue.c:2264
 #2: ffff00011e6e9240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0xa4/0x1240 drivers/net/netdevsim/fib.c:1489
1 lock held by syz-executor.0/17913:
1 lock held by syz-executor.4/17915:
1 lock held by syz-executor.1/17907:
 #0: ffff00012e9360e0 (&type->s_umount_key#63/1){+.+.}-{3:3}, at: alloc_super+0xf8/0x430 fs/super.c:228
1 lock held by syz-executor.2/17917:

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