INFO: task kworker/1:6:4803 blocked for more than 143 seconds.
Not tainted 6.8.0-rc6-syzkaller-00190-ga788e53c05ae #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:21824 pid:4803 tgid:4803 ppid:2 flags:0x00004000
Workqueue: events request_firmware_work_func
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xca8/0x3100 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b9/0x9d0 kernel/locking/mutex.c:752
device_lock include/linux/device.h:990 [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/0x240 drivers/base/firmware_loader/main.c:1163
process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:243
Showing all locks held in the system:
5 locks held by kworker/0:0/8:
3 locks held by kworker/0:1/9:
#0: ffff888100088938
((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2608
#1: ffffc9000009fd80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2609
#2: ffff88810af72190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff88810af72190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1163 [inline]
#2: ffff88810af72190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3b1/0x620 drivers/net/wireless/ath/ath9k/hif_usb.c:1296
5 locks held by kworker/1:1/28:
1 lock held by khungtaskd/29:
#0: ffffffff87eadc20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff87eadc20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff87eadc20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/2455:
#0: ffff8881110320a0 (&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+0xfc6/0x1490 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:6/4803:
#0: ffff888100088938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2608
#1: ffffc9000483fd80 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2609
#2: ffff88810af5a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff88810af5a190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1163 [inline]
#2: ffff88810af5a190 (&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 udevd/4817:
#0: ffff888133640b98 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xda/0x1280 fs/seq_file.c:182
#1: ffff88811cb95c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x230 fs/kernfs/file.c:154
#2: ffff888119a181f8 (kn->active#18){++++}-{0:0}, at: kernfs_seq_start+0x71/0x230 fs/kernfs/file.c:155
#3: ffff8881111cc190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:995 [inline]
#3: ffff8881111cc190 (&dev->mutex){....}-{3:3}, at: manufacturer_show+0x26/0xa0 drivers/usb/core/sysfs.c:142
5 locks held by kworker/0:6/5041:
#0: ffff8881066b4938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2608
#1: ffffc9000161fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2609
#2: ffff88810ab9a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#2: ffff88810ab9a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5840
#3: ffff88810ab9d508 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3198 [inline]
#3: ffff88810ab9d508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5409 [inline]
#3: ffff88810ab9d508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5652 [inline]
#3: ffff88810ab9d508 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5812 [inline]
#3: ffff88810ab9d508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x28b4/0x4f40 drivers/usb/core/hub.c:5894
#4: ffff88810a7e48e8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5410 [inline]
#4: ffff88810a7e48e8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5652 [inline]
#4: ffff88810a7e48e8 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5812 [inline]
#4: ffff88810a7e48e8 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x28da/0x4f40 drivers/usb/core/hub.c:5894
2 locks held by syz-executor.4/14761:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc6-syzkaller-00190-ga788e53c05ae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x2c6/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2514 Comm: syz-executor.2 Not tainted 6.8.0-rc6-syzkaller-00190-ga788e53c05ae #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:__lock_acquire+0xea0/0x3b30 kernel/locking/lockdep.c:5009
Code: 01 0f 87 84 f2 ff ff 45 89 e7 0f 87 77 1f 00 00 4b 8d 7c fd 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 aa 1e 00 00 4f 8b 7c fd 08 4d 85 ff 0f 85 6e f2 ff ff e9 48
RSP: 0018:ffffc900015bf948 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000002
RDX: 1ffffffff0fdb3b2 RSI: ffff8881145b3a00 RDI: ffffffff87ed9d90
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8935f617 R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff87ed9d88 R14: 0000000000000000 R15: 0000000000000000
FS: 0000555556a3f480(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30425000 CR3: 000000013672d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1ae/0x520 kernel/locking/lockdep.c:5719
seqcount_lockdep_reader_access include/linux/seqlock.h:72 [inline]
timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
ktime_get+0x12c/0x490 kernel/time/timekeeping.c:848
__hrtimer_start_range_ns kernel/time/hrtimer.c:1248 [inline]
hrtimer_start_range_ns+0x23c/0xdc0 kernel/time/hrtimer.c:1302
hrtimer_start_expires include/linux/hrtimer.h:394 [inline]
hrtimer_sleeper_start_expires kernel/time/hrtimer.c:1969 [inline]
do_nanosleep+0x1f5/0x500 kernel/time/hrtimer.c:2045
hrtimer_nanosleep+0x1ae/0x440 kernel/time/hrtimer.c:2101
common_nsleep+0xa1/0xc0 kernel/time/posix-timers.c:1350
__do_sys_clock_nanosleep kernel/time/posix-timers.c:1396 [inline]
__se_sys_clock_nanosleep kernel/time/posix-timers.c:1373 [inline]
__x64_sys_clock_nanosleep+0x344/0x490 kernel/time/posix-timers.c:1373
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fef1c89a273
Code: 00 00 00 00 0f 1f 00 83 ff 03 74 7b 83 ff 02 b8 fa ff ff ff 49 89 ca 0f 44 f8 80 3d 8e 6c 0d 00 00 74 14 b8 e6 00 00 00 0f 05 d8 c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec 28 48 89 54 24 10
RSP: 002b:00007fffc460bae8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e6
RAX: ffffffffffffffda RBX: 000000000000043f RCX: 00007fef1c89a273
RDX: 00007fffc460bb00 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fffc460bb8c R08: 00000000000004e1 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000032
R13: 0000000000130445 R14: 000000000013043c R15: 0000000000000002