INFO: task syz-executor397:6178 blocked for more than 143 seconds.
Not tainted 6.2.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor397 state:D stack:25232 pid:6178 ppid:5062 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5244 [inline]
__schedule+0xb8a/0x5450 kernel/sched/core.c:6555
schedule+0xde/0x1b0 kernel/sched/core.c:6631
io_schedule+0xbe/0x130 kernel/sched/core.c:8811
bit_wait_io+0x16/0xe0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0x11f/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0xd9/0x110 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:397 [inline]
__sync_dirty_buffer+0x30e/0x380 fs/buffer.c:2732
__ext4_handle_dirty_metadata+0x2b7/0x6f0 fs/ext4/ext4_jbd2.c:387
ext4_convert_inline_data_nolock+0x6e6/0xf10 fs/ext4/inline.c:1255
ext4_convert_inline_data+0x51a/0x5f0 fs/ext4/inline.c:2066
ext4_fallocate+0x19a/0x43d0 fs/ext4/extents.c:4701
vfs_fallocate+0x48b/0xe00 fs/open.c:323
ioctl_preallocate+0x18e/0x200 fs/ioctl.c:290
file_ioctl fs/ioctl.c:335 [inline]
do_vfs_ioctl+0x1264/0x15b0 fs/ioctl.c:849
__do_sys_ioctl fs/ioctl.c:868 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x10c/0x210 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f40088fb699
RSP: 002b:00007f40088a72f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f40089807a0 RCX: 00007f40088fb699
RDX: 0000000020000000 RSI: 0000000040305839 RDI: 0000000000000004
RBP: 00007f400894d81c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 5f646165726f6964
R13: 7272655f61746164 R14: 0030656c69662f2e R15: 00007f40089807a8
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c790c70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c790970 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
#0: ffffffff8c7917c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
4 locks held by klogd/4417:
#0: ffff8880b983b598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537
#1: ffff8880b98287c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: __wake_up_common_lock+0xb8/0x140 kernel/sched/wait.c:137
#2: ffff88807ed043f0 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xb2/0x2080 kernel/sched/core.c:4100
#3: ffff8880b983b598 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537
2 locks held by getty/4744:
#0: ffff888029ea8098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by syz-executor397/6178:
#0: ffff888023c16460 (sb_writers#4){.+.+}-{0:0}, at: ioctl_preallocate+0x18e/0x200 fs/ioctl.c:290
#1: ffff8880731db628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: inode_lock include/linux/fs.h:756 [inline]
#1: ffff8880731db628 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x192/0x43d0 fs/ext4/extents.c:4700
#2: ffff8880731db2f0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff8880731db2f0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x352/0x5f0 fs/ext4/inline.c:2064
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.2.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:get_typical_interval drivers/cpuidle/governors/menu.c:202 [inline]
RIP: 0010:menu_select+0x56e/0x1910 drivers/cpuidle/governors/menu.c:312
Code: 83 fd 08 0f 85 72 ff ff ff 44 89 64 24 1c 4c 8b 64 24 10 e8 44 79 6a fa 44 8b 34 24 8b 5c 24 50 44 89 f6 89 df e8 62 75 6a fa <44> 39 f3 0f 86 21 02 00 00 e8 24 79 6a fa 8b 5c 24 18 bf 08 00 00
RSP: 0018:ffffffff8c407d20 EFLAGS: 00000093
RAX: 0000000000000000 RBX: 0000000000002073 RCX: ffffffff8716d90e
RDX: ffffffff8c4bc940 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 0000000000000008 R08: 0000000000000004 R09: 0000000000002073
R10: 0000000000000b1c R11: 0000000000000000 R12: ffff8880b98399e4
R13: 000000007fffffff R14: 0000000000000b1c R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055fbe4f8d680 CR3: 000000000c48e000 CR4: 0000000000350ef0
Call Trace:
cpuidle_idle_call kernel/sched/idle.c:229 [inline]
do_idle+0x37f/0x590 kernel/sched/idle.c:303
cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:400
rest_init+0x16d/0x270 init/main.c:732
arch_call_rest_init+0x13/0x1c init/main.c:894
start_kernel+0x44f/0x470 init/main.c:1148
secondary_startup_64_no_verify+0xce/0xdb