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INFO: task hung in ath6kl_usb_power_off

Status: fixed on 2023/02/24 13:50
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+2d6ac90723742279e101@syzkaller.appspotmail.com
Fix commit: 62ebaf2f9261 ath6kl: avoid flush_scheduled_work() usage
First crash: 1880d, last: 832d
▶ ▼ Duplicate bugs (1)
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
INFO: task hung in ath9k_hif_usb_firmware_cb wireless 12148 661d 1598d 0/28 closed as dup on 2022/07/03 14:29
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[PATCH] drivers/core: Replace lockdep_set_novalidate_class() with unique class keys 47 (47) 2023/02/20 17:32
Converting dev->mutex into dev->spinlock ? 29 (29) 2023/02/08 00:34
[perf] lockdep warning between cpu_add_remove_lock and &dev->mutex. 5 (5) 2023/01/23 15:28
[PATCH v2 (REPOST)] rapidio/tsi721: Replace flush_scheduled_work() with flush_work(). 4 (4) 2022/09/16 14:21
INFO: task hung in ath6kl_usb_power_off 0 (1) 2020/07/06 15:22
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 INFO: task hung in ath6kl_usb_power_off (3) 1 54d 54d 0/3 upstream: reported on 2024/09/27 17:18
linux-5.15 INFO: task hung in ath6kl_usb_power_off (2) 2 235d 258d 0/3 auto-obsoleted due to no activity on 2024/07/08 14:28
linux-5.15 INFO: task hung in ath6kl_usb_power_off 1 499d 499d 0/3 auto-obsoleted due to no activity on 2023/10/19 06:26

Sample crash report:
INFO: task kworker/1:0:22 blocked for more than 143 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0     state:D stack:24472 pid:   22 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x378/0x530 kernel/sched/completion.c:106
 __flush_workqueue+0x3ed/0x13a0 kernel/workqueue.c:2861
 ath6kl_usb_flush_all drivers/net/wireless/ath/ath6kl/usb.c:481 [inline]
 hif_detach_htc drivers/net/wireless/ath/ath6kl/usb.c:861 [inline]
 ath6kl_usb_power_off+0xdc/0x140 drivers/net/wireless/ath/ath6kl/usb.c:1060
 ath6kl_hif_power_off drivers/net/wireless/ath/ath6kl/hif-ops.h:143 [inline]
 ath6kl_core_init drivers/net/wireless/ath/ath6kl/core.c:257 [inline]
 ath6kl_core_init+0x236/0x11c0 drivers/net/wireless/ath/ath6kl/core.c:66
 ath6kl_usb_probe+0xc0d/0x1200 drivers/net/wireless/ath/ath6kl/usb.c:1160
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x23e/0xb90 drivers/base/dd.c:634
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:989
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbda/0x1ea0 drivers/base/core.c:3428
 usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x23e/0xb90 drivers/base/dd.c:634
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:989
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbda/0x1ea0 drivers/base/core.c:3428
 usb_new_device.cold+0x641/0x1091 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5363 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5663 [inline]
 hub_event+0x25d5/0x4690 drivers/usb/core/hub.c:5745
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 process_scheduled_works kernel/workqueue.c:2352 [inline]
 worker_thread+0x854/0x1080 kernel/workqueue.c:2438
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task kworker/1:3:3680 blocked for more than 144 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3     state:D stack:25192 pid: 3680 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x378/0x530 kernel/sched/completion.c:106
 __flush_workqueue+0x3ed/0x13a0 kernel/workqueue.c:2861
 ath6kl_usb_flush_all drivers/net/wireless/ath/ath6kl/usb.c:481 [inline]
 hif_detach_htc drivers/net/wireless/ath/ath6kl/usb.c:861 [inline]
 ath6kl_usb_power_off+0xdc/0x140 drivers/net/wireless/ath/ath6kl/usb.c:1060
 ath6kl_hif_power_off drivers/net/wireless/ath/ath6kl/hif-ops.h:143 [inline]
 ath6kl_core_init drivers/net/wireless/ath/ath6kl/core.c:257 [inline]
 ath6kl_core_init+0x236/0x11c0 drivers/net/wireless/ath/ath6kl/core.c:66
 ath6kl_usb_probe+0xc0d/0x1200 drivers/net/wireless/ath/ath6kl/usb.c:1160
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x23e/0xb90 drivers/base/dd.c:634
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:989
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbda/0x1ea0 drivers/base/core.c:3428
 usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x23e/0xb90 drivers/base/dd.c:634
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:989
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbda/0x1ea0 drivers/base/core.c:3428
 usb_new_device.cold+0x641/0x1091 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5363 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5663 [inline]
 hub_event+0x25d5/0x4690 drivers/usb/core/hub.c:5745
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task kworker/1:6:3684 blocked for more than 144 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6     state:D stack:24952 pid: 3684 ppid:     2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x378/0x530 kernel/sched/completion.c:106
 __flush_workqueue+0x3ed/0x13a0 kernel/workqueue.c:2861
 ath6kl_usb_flush_all drivers/net/wireless/ath/ath6kl/usb.c:481 [inline]
 hif_detach_htc drivers/net/wireless/ath/ath6kl/usb.c:861 [inline]
 ath6kl_usb_power_off+0xdc/0x140 drivers/net/wireless/ath/ath6kl/usb.c:1060
 ath6kl_hif_power_off drivers/net/wireless/ath/ath6kl/hif-ops.h:143 [inline]
 ath6kl_core_init drivers/net/wireless/ath/ath6kl/core.c:257 [inline]
 ath6kl_core_init+0x236/0x11c0 drivers/net/wireless/ath/ath6kl/core.c:66
 ath6kl_usb_probe+0xc0d/0x1200 drivers/net/wireless/ath/ath6kl/usb.c:1160
 usb_probe_interface+0x315/0x7f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x23e/0xb90 drivers/base/dd.c:634
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:989
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbda/0x1ea0 drivers/base/core.c:3428
 usb_set_configuration+0x101e/0x1900 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd9/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x23e/0xb90 drivers/base/dd.c:634
 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:764
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:794
 __device_attach_driver+0x20b/0x2f0 drivers/base/dd.c:917
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:989
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbda/0x1ea0 drivers/base/core.c:3428
 usb_new_device.cold+0x641/0x1091 drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5363 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5663 [inline]
 hub_event+0x25d5/0x4690 drivers/usb/core/hub.c:5745
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
INFO: task kworker/1:7:3687 blocked for more than 145 seconds.
      Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7     state:D stack:22192 pid: 3687 ppid:     2 flags:0x00004000
Workqueue: events request_firmware_work_func
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5178 [inline]
 __schedule+0xa00/0x4c10 kernel/sched/core.c:6490
 schedule+0xda/0x1b0 kernel/sched/core.c:6566
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6625
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
 device_lock include/linux/device.h:835 [inline]
 ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1135 [inline]
 ath9k_hif_usb_firmware_cb+0x3a9/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1268
 request_firmware_work_func+0x12c/0x230 drivers/base/firmware_loader/main.c:1107
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8bd83d70 (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: ffffffff8bd83a70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
3 locks held by kworker/0:1/14:
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc9000034fda8 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffffffff8bd8f538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
 #2: ffffffff8bd8f538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x562/0x670 kernel/rcu/tree_exp.h:940
5 locks held by kworker/1:0/22:
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc900003dfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffff888021125190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff888021125190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5691
 #3: ffff888028779190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #3: ffff888028779190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: ffff888077fbf118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #4: ffff888077fbf118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
1 lock held by khungtaskd/28:
 #0: ffffffff8bd848c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492
2 locks held by getty/3280:
 #0: ffff888022ffc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90001c382e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
1 lock held by syz-executor.0/3643:
 #0: ffffffff8bd8f538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline]
 #0: ffffffff8bd8f538 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x24a/0x670 kernel/rcu/tree_exp.h:940
5 locks held by kworker/1:3/3680:
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc900031afda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffff888020e88190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff888020e88190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5691
 #3: ffff88801d64a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #3: ffff88801d64a190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: ffff88807af1e118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #4: ffff88807af1e118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
5 locks held by kworker/1:6/3684:
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc900031bfda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffff8880219ec190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff8880219ec190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5691
 #3: ffff88807a492190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #3: ffff88807a492190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: ffff88807282b118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #4: ffff88807282b118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
3 locks held by kworker/1:7/3687:
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc900033efda8 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffff8880219ec190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff8880219ec190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1135 [inline]
 #2: ffff8880219ec190 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3a9/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1268
5 locks held by kworker/0:6/3699:
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff88801758ad38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc9000312fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffff888147a0a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff888147a0a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690 drivers/usb/core/hub.c:5691
 #3: ffff8880203b9190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #3: ffff8880203b9190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
 #4: ffff888076b03118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #4: ffff888076b03118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:964
3 locks held by udevd/3710:
 #0: ffff88801fc61088 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:197 [inline]
 #0: ffff88801fc61088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x6e0 fs/kernfs/file.c:236
 #1: ffff8880793e2cb8 (kn->active#56){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
 #1: ffff8880793e2cb8 (kn->active#56){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x6e0 fs/kernfs/file.c:236
 #2: ffff88801d64a190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
 #2: ffff88801d64a190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
3 locks held by udevd/3863:
 #0: ffff8880270c3888 (&of->mutex){+.+.}-{3:3}, at: kernfs_file_read_iter fs/kernfs/file.c:197 [inline]
 #0: ffff8880270c3888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_read_iter+0x189/0x6e0 fs/kernfs/file.c:236
 #1: ffff888076c84578 (kn->active#56){++++}-{0:0}, at: kernfs_file_read_iter fs/kernfs/file.c:198 [inline]
 #1: ffff888076c84578 (kn->active#56){++++}-{0:0}, at: kernfs_fop_read_iter+0x1ac/0x6e0 fs/kernfs/file.c:236
 #2: ffff888028779190 (&dev->mutex){....}-{3:3}, at: device_lock_interruptible include/linux/device.h:840 [inline]
 #2: ffff888028779190 (&dev->mutex){....}-{3:3}, at: read_descriptors+0x3c/0x2c0 drivers/usb/core/sysfs.c:873
2 locks held by kworker/0:10/5389:
 #0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc9000440fda8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
2 locks held by syz-executor.3/10380:

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
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:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 21 Comm: ksoftirqd/1 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:unwind_next_frame+0x126c/0x1cc0 arch/x86/kernel/unwind_orc.c:600
Code: ff ff 49 8d 78 02 48 ba 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 0f b6 0c 10 49 8d 40 03 48 89 c6 48 c1 ee 03 0f b6 14 16 <48> 89 fe 83 e6 07 40 38 f1 40 0f 9e c6 84 c9 0f 95 c1 40 84 ce 0f
RSP: 0018:ffffc900003cf8c0 EFLAGS: 00000807
RAX: ffffffff8e37db35 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffffffff1c6fb66 RDI: ffffffff8e37db34
RBP: ffffc900003cf9c8 R08: ffffffff8e37db32 R09: ffffc900003cf9b4
R10: fffff52000079f3b R11: ffffc900003cfa10 R12: ffffc900003cf9b5
R13: ffffc900003cf980 R14: ffffc900003cfa18 R15: ffffffff8e37db36
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020639000 CR3: 00000000318c1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __unwind_start+0x51b/0x800 arch/x86/kernel/unwind_orc.c:712
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x5c/0xe0 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
 kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
 kasan_set_track+0x21/0x30 mm/kasan/common.c:45
 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
 ____kasan_slab_free mm/kasan/common.c:367 [inline]
 ____kasan_slab_free+0x13d/0x180 mm/kasan/common.c:329
 kasan_slab_free include/linux/kasan.h:200 [inline]
 __cache_free mm/slab.c:3426 [inline]
 kmem_cache_free.part.0+0x10f/0x2e0 mm/slab.c:3735
 rcu_do_batch kernel/rcu/tree.c:2245 [inline]
 rcu_core+0x7b5/0x18a0 kernel/rcu/tree.c:2505
 __do_softirq+0x29b/0x9c2 kernel/softirq.c:571
 run_ksoftirqd kernel/softirq.c:934 [inline]
 run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
 smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>

Crashes (7454):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/08/11 10:48 upstream 200e340f2196 a6201f11 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in ath6kl_usb_power_off
2022/08/10 18:41 upstream 200e340f2196 a6201f11 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in ath6kl_usb_power_off
2022/08/10 17:24 upstream 200e340f2196 a6201f11 .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in ath6kl_usb_power_off
2022/08/07 12:04 upstream 200e340f2196 88e3a122 .config console log report info ci-upstream-kasan-gce-root INFO: task hung in ath6kl_usb_power_off
2022/08/03 07:19 upstream e2b542100719 1c9013ac .config console log report info ci-upstream-kasan-gce-selinux-root INFO: task hung in ath6kl_usb_power_off
2022/07/04 09:18 upstream 88084a3df167 1434eec0 .config console log report info ci-upstream-kasan-gce INFO: task hung in ath6kl_usb_power_off
2022/03/28 21:02 upstream ae085d7f9365 ee339263 .config console log report info ci-upstream-kasan-gce-smack-root INFO: task hung in ath6kl_usb_power_off
2022/03/24 00:12 upstream 1bc191051dca 5ff41e94 .config console log report info ci-upstream-kasan-gce-386 INFO: task hung in ath6kl_usb_power_off
2022/08/05 22:33 linux-next cb71b93c2dc3 e853abd9 .config console log report info ci-upstream-linux-next-kasan-gce-root INFO: task hung in ath6kl_usb_power_off
2022/08/05 06:29 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/05 03:46 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/05 00:13 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 20:14 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 18:09 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 14:29 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 13:43 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 08:08 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 05:17 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 03:52 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 02:22 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 01:15 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/04 00:08 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 22:04 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 20:00 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 18:03 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 15:10 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 12:51 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 11:00 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/03 06:13 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/02 21:47 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 1c9013ac .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/02 16:12 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/02 14:30 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/02 12:27 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/02 05:34 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/02 03:07 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/01 23:38 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/01 22:32 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/01 12:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/08/01 02:16 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/31 14:31 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/31 07:15 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/30 22:21 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/30 15:36 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/30 13:40 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/30 11:57 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/30 01:54 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/29 23:57 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/29 22:39 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/29 18:38 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/29 13:10 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2022/07/29 11:25 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 8288c99fc263 fef302b1 .config console log report info ci2-upstream-usb INFO: task hung in ath6kl_usb_power_off
2021/01/11 09:08 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 841081d89d5a 2c1f2513 .config console log report info ci2-upstream-usb
2020/07/03 03:09 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing c8d141ce1b85 f30c14bf .config console log report ci2-upstream-usb
2019/09/28 21:58 https://github.com/google/kasan.git usb-fuzzer 2994c07743fe eb6b9855 .config console log report ci2-upstream-usb
* Struck through repros no longer work on HEAD.