INFO: task syz-executor.1:22865 blocked for more than 143 seconds.
Not tainted 5.15.110-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:23872 pid:22865 ppid: 18449 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5026 [inline]
__schedule+0x12c4/0x4590 kernel/sched/core.c:6372
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
io_schedule+0x88/0x100 kernel/sched/core.c:8472
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit_lock+0xbf/0x1a0 kernel/sched/wait_bit.c:90
out_of_line_wait_on_bit_lock+0x1d0/0x250 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:402 [inline]
__sync_dirty_buffer+0x120/0x380 fs/buffer.c:3144
__ext4_handle_dirty_metadata+0x288/0x800 fs/ext4/ext4_jbd2.c:381
ext4_convert_inline_data_nolock+0xad1/0xda0 fs/ext4/inline.c:1262
ext4_convert_inline_data+0x4cf/0x610 fs/ext4/inline.c:2045
ext4_fallocate+0x155/0x2140 fs/ext4/extents.c:4707
vfs_fallocate+0x54a/0x6b0 fs/open.c:308
do_vfs_ioctl+0x2317/0x2b70 fs/ioctl.c:853
__do_sys_ioctl fs/ioctl.c:872 [inline]
__se_sys_ioctl+0x81/0x160 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fde7421f169
RSP: 002b:00007fde72791168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fde7433ef80 RCX: 00007fde7421f169
RDX: 0000000020000080 RSI: 0000000040305839 RDI: 0000000000000004
RBP: 00007fde7427aca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffff999ccdf R14: 00007fde72791300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8c91c4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3256:
#0: ffff88814af58098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900020a32e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1da0 drivers/tty/n_tty.c:2147
5 locks held by kworker/1:1/25143:
#0: ffff888016d5b138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2279
#1: ffffc9000332fd20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2281
#2: ffff888148201220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff888148201220 (&dev->mutex){....}-{3:3}, at: hub_event+0x207/0x56d0 drivers/usb/core/hub.c:5676
#3: ffff8881482045c0 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3091 [inline]
#3: ffff8881482045c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5254 [inline]
#3: ffff8881482045c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
#3: ffff8881482045c0 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5648 [inline]
#3: ffff8881482045c0 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2325/0x56d0 drivers/usb/core/hub.c:5730
#4: ffff88801e353668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5255 [inline]
#4: ffff88801e353668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]
#4: ffff88801e353668 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5648 [inline]
#4: ffff88801e353668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x235a/0x56d0 drivers/usb/core/hub.c:5730
3 locks held by kworker/u4:32/19557:
#0: ffff8881427c5138 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2279
#1: ffffc900060ffd20 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2281
#2: ffff888011e620e0 (&type->s_umount_key#41){.+.+}-{3:3}, at: trylock_super+0x1b/0xf0 fs/super.c:418
3 locks held by syz-executor.1/22865:
#0: ffff888079948460 (sb_writers#5){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2966 [inline]
#0: ffff888079948460 (sb_writers#5){.+.+}-{0:0}, at: vfs_fallocate+0x4bd/0x6b0 fs/open.c:307
#1: ffff8880ad2c49b8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: inode_lock include/linux/fs.h:787 [inline]
#1: ffff8880ad2c49b8 (&sb->s_type->i_mutex_key#9){++++}-{3:3}, at: ext4_fallocate+0x14d/0x2140 fs/ext4/extents.c:4706
#2: ffff8880ad2c4690 (&ei->xattr_sem){++++}-{3:3}, at: ext4_write_lock_xattr fs/ext4/xattr.h:155 [inline]
#2: ffff8880ad2c4690 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3ab/0x610 fs/ext4/inline.c:2043
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.15.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 19544 Comm: kworker/u4:16 Not tainted 5.15.110-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: 0x0 (phy21)
RIP: 0010:put_prev_entity+0x247/0x5c0 kernel/sched/fair.c:4784
Code: df 80 3c 08 00 74 08 48 89 df e8 24 50 6e 00 4c 89 3b 4c 89 ff 48 89 ee e8 86 38 cf 02 4c 89 f7 4c 89 e6 31 d2 e8 29 c5 ff ff <49> 83 c6 50 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80
RSP: 0018:ffffc90005e2faf0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 1ffff110141ee3bf RCX: dffffc0000000000
RDX: ffffc90005e2fd20 RSI: ffff8880a0f71dc0 RDI: ffff8880b9b39740
RBP: ffff8880b9b39740 R08: ffffffff813ab69f R09: fffffbfff1bc744e
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880a0f71dc0
R13: ffff8880a0f71df8 R14: ffff8880b9b39740 R15: ffff8880a0f71d80
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f09281001b8 CR3: 000000008a2e7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
pick_next_task_fair+0x371/0x9d0 kernel/sched/fair.c:7568
__pick_next_task kernel/sched/core.c:5646 [inline]
pick_next_task kernel/sched/core.c:5754 [inline]
__schedule+0x86d/0x4590 kernel/sched/core.c:6336
schedule+0x11b/0x1f0 kernel/sched/core.c:6455
worker_thread+0xf56/0x1280 kernel/workqueue.c:2474
kthread+0x3f6/0x4f0 kernel/kthread.c:319
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298