INFO: task syz-executor356:4437 blocked for more than 143 seconds.
Not tainted 6.2.0-rc3-syzkaller-16387-g9598c377d828 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor356 state:D stack:0 pid:4437 ppid:4436 flags:0x00000001
Call trace:
__switch_to+0x180/0x298 arch/arm64/kernel/process.c:555
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0x438/0x5a0 kernel/sched/core.c:6555
schedule+0x64/0xa4 kernel/sched/core.c:6631
io_schedule+0x38/0xbc kernel/sched/core.c:8811
bit_wait_io+0x18/0x60 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0x6c/0x114 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x84/0xac kernel/sched/wait_bit.c:117
wait_on_bit_lock_io include/linux/wait_bit.h:208 [inline]
__lock_buffer fs/buffer.c:69 [inline]
lock_buffer include/linux/buffer_head.h:397 [inline]
__sync_dirty_buffer+0xe8/0x328 fs/buffer.c:2732
sync_dirty_buffer+0x24/0x34 fs/buffer.c:2758
__ext4_handle_dirty_metadata+0x118/0x3e8 fs/ext4/ext4_jbd2.c:387
ext4_convert_inline_data_nolock+0x3d8/0x450 fs/ext4/inline.c:1255
ext4_convert_inline_data+0x22c/0x310 fs/ext4/inline.c:2066
ext4_page_mkwrite+0x8c/0x9d0 fs/ext4/inode.c:6232
do_page_mkwrite+0x74/0x288 mm/memory.c:2947
do_shared_fault mm/memory.c:4579 [inline]
do_fault+0x274/0x550 mm/memory.c:4647
handle_pte_fault mm/memory.c:4931 [inline]
__handle_mm_fault mm/memory.c:5073 [inline]
handle_mm_fault+0x824/0xb28 mm/memory.c:5219
__do_page_fault arch/arm64/mm/fault.c:512 [inline]
do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:612
do_translation_fault+0x78/0x194 arch/arm64/mm/fault.c:695
do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:831
el0_da+0x70/0x16c arch/arm64/kernel/entry-common.c:515
el0t_64_sync_handler+0xcc/0xf0 arch/arm64/kernel/entry-common.c:658
el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/11:
#0: ffff80000d645648 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/12:
#0: ffff80000d645c98 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
#0: ffff80000d645520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:324
2 locks held by getty/4082:
#0: ffff0000c7c3d098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244
#1: ffff80000f8562f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177
4 locks held by syz-executor356/4437:
#0: ffff0000c7cb8808 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_trylock include/linux/mmap_lock.h:136 [inline]
#0: ffff0000c7cb8808 (&mm->mmap_lock){++++}-{3:3}, at: do_page_fault+0x1ec/0x79c arch/arm64/mm/fault.c:593
#1: ffff0000c7d0a558 (sb_pagefaults){.+.+}-{0:0}, at: __sb_start_write include/linux/fs.h:1814 [inline]
#1: ffff0000c7d0a558 (sb_pagefaults){.+.+}-{0:0}, at: sb_start_pagefault include/linux/fs.h:1918 [inline]
#1: ffff0000c7d0a558 (sb_pagefaults){.+.+}-{0:0}, at: ext4_page_mkwrite+0x70/0x9d0 fs/ext4/inode.c:6227
#2: ffff0000cad6bf00 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline]
#2: ffff0000cad6bf00 (mapping.invalidate_lock){++++}-{3:3}, at: ext4_page_mkwrite+0x84/0x9d0 fs/ext4/inode.c:6230
#3: ffff0000cad6ba28 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#3: ffff0000cad6ba28 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x1b0/0x310 fs/ext4/inline.c:2064
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