INFO: task kworker/1:4:15138 blocked for more than 143 seconds.
Not tainted 6.11.0-rc4-syzkaller-00071-g9a03b9a88e4a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:4 state:D stack:23424 pid:15138 tgid:15138 ppid:2 flags:0x00004000
Workqueue: events request_firmware_work_func
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:1009 [inline]
ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1163 [inline]
ath9k_hif_usb_firmware_cb+0x3b1/0x620 drivers/net/wireless/ath/ath9k/hif_usb.c:1296
request_firmware_work_func+0x13a/0x250 drivers/base/firmware_loader/main.c:1167
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff88cb7220 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff88cb7220 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff88cb7220 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6626
2 locks held by getty/2602:
#0: ffff888107aa60a0
(
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1:
ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
4 locks held by udevd/4907:
#0: ffff88810b76b1c8 (
&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xde/0x12c0 fs/seq_file.c:182
#1: ffff88810dbb7088 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
#2: ffff888115cad008 (kn->active#9){++++}-{0:0}, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
#3: ffff88810531e190 (
&dev->mutex){....}-{3:3}
, at: device_lock_interruptible include/linux/device.h:1014 [inline]
, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
7 locks held by kworker/1:3/4923:
6 locks held by kworker/1:0/7974:
#0: ffff8881052d8548
((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc9000f7e7d80 ((work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888108ff3190
(&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
(&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3:
ffff888108ff6510 (
&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5418 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline]
&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x28aa/0x4f40 drivers/usb/core/hub.c:5903
#4: ffff88810e2e5868
(hcd->address0_mutex
){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5419 [inline]
){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline]
){+.+.}-{3:3}, at: hub_event+0x28d0/0x4f40 drivers/usb/core/hub.c:5903
#5: ffff8881f633d718 (&rq->__lock){-.-.}-{2:2}
, at: timekeeping_get_ns kernel/time/timekeeping.c:401 [inline]
, at: ktime_get+0xd9/0x1a0 kernel/time/timekeeping.c:850
3 locks held by kworker/1:4/15138:
#0:
ffff888100080948
(
(wq_completion)events){+.+.}-{0:0}
, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90001b2fd80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2:
ffff888108fb2190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
ffff888108fb2190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1163 [inline]
ffff888108fb2190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3b1/0x620 drivers/net/wireless/ath/ath9k/hif_usb.c:1296
4 locks held by kworker/0:7/23412:
1 lock held by syz.4.4896/26320:
#0: ffffffff88cc29b8
(rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:296
1 lock held by syz.2.4897/26323:
#0: ffffffff88cc29b8 (rcu_state.exp_mutex
){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:328
1 lock held by syz.0.4899/26327:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc4-syzkaller-00071-g9a03b9a88e4a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xf0c/0x1240 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 4923 Comm: kworker/1:3 Not tainted 6.11.0-rc4-syzkaller-00071-g9a03b9a88e4a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:record_print_text+0x6d/0x400 kernel/printk/printk.c:1387
Code: 28 48 01 d8 48 c7 44 24 48 10 f3 33 81 c7 00 f1 f1 f1 f1 c7 40 04 f1 f1 00 00 c7 40 0c f3 f3 f3 f3 65 48 8b 04 25 28 00 00 00 <48> 89 84 24 d0 00 00 00 31 c0 e8 34 58 1f 00 48 89 e8 48 c1 e8 03
RSP: 0018:ffffc900024ce678 EFLAGS: 00000282
RAX: 72b99297095dad00 RBX: dffffc0000000000 RCX: ffffc9000c550000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffffc900024ce7d0
RBP: ffffc900024ce7d0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000006d77d0 R12: 0000000000000001
R13: ffffc900024ce810 R14: 0000000000000000 R15: ffffc900024ce7d0
FS: 0000000000000000(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53780fefe0 CR3: 0000000112160000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2910
console_emit_next_record kernel/printk/printk.c:2950 [inline]
console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:3049
console_unlock+0xae/0x290 kernel/printk/printk.c:3118
vprintk_emit kernel/printk/printk.c:2348 [inline]
vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2303
dev_vprintk_emit drivers/base/core.c:4912 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4923
__netdev_printk+0x1f7/0x500 net/core/dev.c:11762
netdev_warn+0xe5/0x120 net/core/dev.c:11815
asix_write_cmd+0xf1/0x100 drivers/net/usb/asix_common.c:57
asix_set_sw_mii drivers/net/usb/asix_common.c:75 [inline]
asix_check_host_enable+0x155/0x240 drivers/net/usb/asix_common.c:98
__asix_mdio_read+0xa3/0x270 drivers/net/usb/asix_common.c:506
asix_phy_reset+0x106/0x1f0 drivers/net/usb/asix_devices.c:215
ax88172_bind+0x420/0x5d0 drivers/net/usb/asix_devices.c:275
usbnet_probe+0xac6/0x26d0 drivers/net/usb/usbnet.c:1746
usb_probe_interface+0x309/0x9d0 drivers/usb/core/driver.c:399
call_driver_probe drivers/base/dd.c:578 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:657
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x114b/0x1a70 drivers/base/core.c:3682
usb_set_configuration+0x10cb/0x1c50 drivers/usb/core/message.c:2210
usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:254
usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:294
call_driver_probe drivers/base/dd.c:578 [inline]
really_probe+0x23e/0xa90 drivers/base/dd.c:657
__driver_probe_device+0x1de/0x440 drivers/base/dd.c:799
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:957
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1029
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x114b/0x1a70 drivers/base/core.c:3682
usb_new_device+0xd90/0x1a10 drivers/usb/core/hub.c:2651
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2e58/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244