INFO: task syz-executor.1:7883 blocked for more than 430 seconds.
      Tainted: G        W          6.2.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:0     pid:7883  ppid:2890   flags:0x00000004
Call Trace:
[<ffffffff834484b8>] context_switch kernel/sched/core.c:5244 [inline]
[<ffffffff834484b8>] __schedule+0x644/0x1274 kernel/sched/core.c:6555
[<ffffffff83449162>] schedule+0x7a/0x102 kernel/sched/core.c:6631
[<ffffffff83449298>] io_schedule+0x5a/0x88 kernel/sched/core.c:8811
[<ffffffff83449ec4>] bit_wait_io+0x12/0x7e kernel/sched/wait_bit.c:209
[<ffffffff834499ca>] __wait_on_bit_lock+0xc2/0x10c kernel/sched/wait_bit.c:90
[<ffffffff83449ae2>] out_of_line_wait_on_bit_lock+0xce/0xf2 kernel/sched/wait_bit.c:117
[<ffffffff805eeb0a>] wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
[<ffffffff805eeb0a>] __lock_buffer fs/buffer.c:69 [inline]
[<ffffffff805eeb0a>] lock_buffer include/linux/buffer_head.h:397 [inline]
[<ffffffff805eeb0a>] __sync_dirty_buffer+0x27c/0x2a4 fs/buffer.c:2732
[<ffffffff805eeb52>] sync_dirty_buffer+0x20/0x2a fs/buffer.c:2758
[<ffffffff8073abc6>] __ext4_handle_dirty_metadata+0x220/0x4a2 fs/ext4/ext4_jbd2.c:387
[<ffffffff8076ef76>] ext4_convert_inline_data_nolock+0x48c/0x7b0 fs/ext4/inline.c:1255
[<ffffffff80775cf8>] ext4_convert_inline_data+0x298/0x3b2 fs/ext4/inline.c:2066
[<ffffffff8074b9b6>] ext4_fallocate+0x138/0x2e16 fs/ext4/extents.c:4701
[<ffffffff8053f8a6>] vfs_fallocate+0x342/0x5a4 fs/open.c:323
[<ffffffff80540c9e>] ksys_fallocate fs/open.c:346 [inline]
[<ffffffff80540c9e>] __do_sys_fallocate fs/open.c:354 [inline]
[<ffffffff80540c9e>] sys_fallocate+0x5c/0xa6 fs/open.c:352
[<ffffffff80005ff6>] ret_from_syscall+0x0/0x2
INFO: task syz-executor.1:7890 blocked for more than 430 seconds.
      Tainted: G        W          6.2.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1  state:D stack:0     pid:7890  ppid:2890   flags:0x00000004
Call Trace:
[<ffffffff834484b8>] context_switch kernel/sched/core.c:5244 [inline]
[<ffffffff834484b8>] __schedule+0x644/0x1274 kernel/sched/core.c:6555
[<ffffffff83449162>] schedule+0x7a/0x102 kernel/sched/core.c:6631
[<ffffffff8344e6b6>] rwsem_down_write_slowpath+0x424/0x9f6 kernel/locking/rwsem.c:1190
[<ffffffff8344edf4>] __down_write_common kernel/locking/rwsem.c:1305 [inline]
[<ffffffff8344edf4>] __down_write_common kernel/locking/rwsem.c:1302 [inline]
[<ffffffff8344edf4>] __down_write kernel/locking/rwsem.c:1314 [inline]
[<ffffffff8344edf4>] down_write+0x16c/0x17a kernel/locking/rwsem.c:1563
[<ffffffff805b344e>] inode_lock include/linux/fs.h:756 [inline]
[<ffffffff805b344e>] vfs_setxattr+0x122/0x29a fs/xattr.c:322
[<ffffffff805b3a48>] do_setxattr fs/xattr.c:608 [inline]
[<ffffffff805b3a48>] do_setxattr+0x118/0x11c fs/xattr.c:601
[<ffffffff805b3bdc>] setxattr+0x190/0x1a8 fs/xattr.c:631
[<ffffffff805b3d96>] path_setxattr+0x1a2/0x1bc fs/xattr.c:650
[<ffffffff805b3de6>] __do_sys_setxattr fs/xattr.c:666 [inline]
[<ffffffff805b3de6>] sys_setxattr+0x36/0x48 fs/xattr.c:662
[<ffffffff80005ff6>] ret_from_syscall+0x0/0x2

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8517bdd0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x34/0x6fe kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8517bb30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x34/0x6fe kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: ffffffff8517b960 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x3c/0x20e kernel/locking/lockdep.c:6496
2 locks held by getty/2798:
 #0: ff6000000b077098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ff2000000026b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xb9c/0xd0c drivers/tty/n_tty.c:2177
1 lock held by sshd/2831:
1 lock held by syz-fuzzer/2863:
 #0: ff6000005a9d8758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline]
 #0: ff6000005a9d8758 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1358 [inline]
 #0: ff6000005a9d8758 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1648 [inline]
 #0: ff6000005a9d8758 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1be/0x1274 kernel/sched/core.c:6472
3 locks held by syz-executor.0/2892:
8 locks held by kworker/u4:0/6721:
3 locks held by kworker/0:6/7369:
3 locks held by syz-executor.1/7883:
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1811 [inline]
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1886 [inline]
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2935 [inline]
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x51c/0x5a4 fs/open.c:322
 #1: ff60000015bb2c00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #1: ff60000015bb2c00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x132/0x2e16 fs/ext4/extents.c:4700
 #2: ff60000015bb28c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
 #2: ff60000015bb28c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x218/0x3b2 fs/ext4/inline.c:2064
2 locks held by syz-executor.1/7890:
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1811 [inline]
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: sb_start_write include/linux/fs.h:1886 [inline]
 #0: ff6000000f618460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x2c/0x78 fs/namespace.c:508
 #1: ff60000015bb2c00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
 #1: ff60000015bb2c00 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: vfs_setxattr+0x122/0x29a fs/xattr.c:322
1 lock held by syz-executor.1/8561:

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