INFO: task syz-executor197:3637 blocked for more than 143 seconds.
Not tainted 5.17.0-rc5-syzkaller-00189-g53ab78cd6d5a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor197 state:D stack:25528 pid: 3637 ppid: 3636 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:4995 [inline]
__schedule+0xa94/0x4910 kernel/sched/core.c:6304
schedule+0xd2/0x260 kernel/sched/core.c:6377
io_schedule+0xee/0x170 kernel/sched/core.c:8416
bit_wait_io+0x12/0xd0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0x121/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0xd5/0x110 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:368 [inline]
__sync_dirty_buffer+0x35b/0x3f0 fs/buffer.c:3143
__ext4_handle_dirty_metadata+0x28d/0x720 fs/ext4/ext4_jbd2.c:382
ext4_convert_inline_data_nolock+0x6d3/0xf30 fs/ext4/inline.c:1255
ext4_convert_inline_data+0x31a/0x490 fs/ext4/inline.c:2026
ext4_fallocate+0x199/0x3ed0 fs/ext4/extents.c:4698
vfs_fallocate+0x48d/0xe10 fs/open.c:308
ksys_fallocate fs/open.c:331 [inline]
__do_sys_fallocate fs/open.c:339 [inline]
__se_sys_fallocate fs/open.c:337 [inline]
__x64_sys_fallocate+0xcf/0x140 fs/open.c:337
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3e66903959
RSP: 002b:00007ffe4ba51cc8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f3e66903959
RDX: 000000000000048d RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007f3e66971ec0 R09: 00007f3e66971ec0
R10: 0000000000000006 R11: 0000000000000246 R12: 00007ffe4ba51cf0
R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8bb81ae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6460
1 lock held by klogd/2957:
#0: ffff8880b9d39cd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489
2 locks held by getty/3283:
#0: ffff88807e02b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002b5e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2075
2 locks held by syz-executor197/3637:
#0: ffff88807c508460 (sb_writers#6){.+.+}-{0:0}, at: ksys_fallocate fs/open.c:331 [inline]
#0: ffff88807c508460 (sb_writers#6){.+.+}-{0:0}, at: __do_sys_fallocate fs/open.c:339 [inline]
#0: ffff88807c508460 (sb_writers#6){.+.+}-{0:0}, at: __se_sys_fallocate fs/open.c:337 [inline]
#0: ffff88807c508460 (sb_writers#6){.+.+}-{0:0}, at: __x64_sys_fallocate+0xcf/0x140 fs/open.c:337
#1: ffff88806c9fe4c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:142 [inline]
#1: ffff88806c9fe4c8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x21e/0x490 fs/ext4/inline.c:2024
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.17.0-rc5-syzkaller-00189-g53ab78cd6d5a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:377
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
NMI backtrace for cpu 1 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_safe_halt drivers/acpi/processor_idle.c:115 [inline]
NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:556