syzbot


INFO: task hung in usb_remote_wakeup (4)

Status: auto-obsoleted due to no activity on 2023/02/10 23:06
Subsystems: usb
[Documentation on labels]
First crash: 663d, last: 613d
Similar bugs (6)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in usb_remote_wakeup 1 1315d 1315d 0/1 auto-closed as invalid on 2021/04/07 18:31
upstream INFO: task hung in usb_remote_wakeup (2) usb syz inconclusive done 9 1060d 1259d 20/27 fixed on 2021/11/10 00:50
upstream INFO: task hung in usb_remote_wakeup (3) usb 1 873d 873d 0/27 auto-closed as invalid on 2022/05/24 13:32
upstream INFO: task hung in usb_remote_wakeup (5) usb 1 433d 433d 0/27 auto-obsoleted due to no activity on 2023/08/08 04:40
upstream INFO: task hung in usb_remote_wakeup usb 7 1724d 1910d 0/27 auto-closed as invalid on 2020/01/24 14:16
linux-4.14 INFO: task hung in usb_remote_wakeup 1 1375d 1375d 0/1 auto-closed as invalid on 2021/02/06 13:01

Sample crash report:
INFO: task kworker/1:0:8598 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc3-syzkaller-00054-gd65e6b6e884a #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0     state:D stack:29328 pid:8598  ppid:2      flags:0x00004000
Workqueue: pm hcd_resume_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5191 [inline]
 __schedule+0x979/0x2770 kernel/sched/core.c:6503
 schedule+0xda/0x1b0 kernel/sched/core.c:6579
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6638
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
 device_lock include/linux/device.h:835 [inline]
 usb_remote_wakeup+0x1f/0xe0 drivers/usb/core/hub.c:3779
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2ea/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/11:
 #0: ffffffff87a95f50 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
3 locks held by kworker/1:1/24:
1 lock held by khungtaskd/26:
 #0: ffffffff87a96aa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494
3 locks held by kworker/1:2/713:
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
 #1: ffffc9000221fda8
 ((work_completion)(&hub->events)
){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
 #2: ffff88810f751190
 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
2 locks held by getty/1234:
 #0: ffff88810020a098 (&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc900000452f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
5 locks held by kworker/0:3/4047:
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff888109bfd938 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
 #1: ffffc90001dafda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
 #2: 
ffff88810f818190 (
&dev->mutex){....}-{3:3}
, at: device_lock include/linux/device.h:835 [inline]
, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
 #3: ffff8881f6837cd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline]
 #3: ffff8881f6837cd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1354 [inline]
 #3: ffff8881f6837cd8 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1644 [inline]
 #3: ffff8881f6837cd8 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x236/0x2770 kernel/sched/core.c:6420
 #4: ffff88810d4dddc8 (&p->pi_lock){-.-.}-{2:2}, at: try_to_wake_up+0xa9/0x1f20 kernel/sched/core.c:4076
6 locks held by kworker/0:5/4079:
5 locks held by kworker/1:6/4107:
6 locks held by kworker/0:6/4175:
 #0: ffff888109bfd938
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
 #1: ffffc9000211fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
 #2: ffff88810f7f8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff88810f7f8190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1bc/0x4810 drivers/usb/core/hub.c:5737
 #3: ffff888109692190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #3: ffff888109692190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983
 #4: ffff88811125d118 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #4: ffff88811125d118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530 drivers/base/dd.c:983
 #5: ffffffff87a85aa0 (console_lock){+.+.}-{0:0}, at: raw_spin_rq_lock_nested kernel/sched/core.c:537 [inline]
 #5: ffffffff87a85aa0 (console_lock){+.+.}-{0:0}, at: raw_spin_rq_lock kernel/sched/sched.h:1354 [inline]
 #5: ffffffff87a85aa0 (console_lock){+.+.}-{0:0}, at: rq_lock kernel/sched/sched.h:1644 [inline]
 #5: ffffffff87a85aa0 (console_lock){+.+.}-{0:0}, at: ttwu_queue kernel/sched/core.c:3867 [inline]
 #5: ffffffff87a85aa0 (console_lock){+.+.}-{0:0}, at: try_to_wake_up+0xb4b/0x1f20 kernel/sched/core.c:4192
3 locks held by kworker/1:0/8598:
 #0: ffff8881008a9d38
 ((wq_completion)pm
){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
 #1: ffffc9000f5bfda8 ((work_completion)(&hcd->wakeup_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
 #2: ffff88810f769190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline]
 #2: ffff88810f769190 (&dev->mutex){....}-{3:3}, at: usb_remote_wakeup+0x1f/0xe0 drivers/usb/core/hub.c:3779

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

NMI backtrace for cpu 1
CPU: 1 PID: 26 Comm: khungtaskd Not tainted 6.1.0-rc3-syzkaller-00054-gd65e6b6e884a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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+0x24/0x18a lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x32f/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+0xc71/0xfc0 kernel/hung_task.c:377
 kthread+0x2ea/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4079 Comm: kworker/0:5 Not tainted 6.1.0-rc3-syzkaller-00054-gd65e6b6e884a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: usb_hub_wq hub_event
RIP: 0010:accumulate_sum kernel/sched/pelt.c:117 [inline]
RIP: 0010:___update_load_sum kernel/sched/pelt.c:226 [inline]
RIP: 0010:__update_load_avg_cfs_rq+0x528/0x9a0 kernel/sched/pelt.c:322
Code: 54 24 10 e8 ea 30 fe ff 48 8b 7c 24 08 48 b9 00 00 00 00 00 fc ff df 48 8b 54 24 10 48 c1 ef 03 80 3c 0f 00 0f 85 79 03 00 00 <4c> 8d 8d 90 00 00 00 48 89 85 88 00 00 00 48 b8 00 00 00 00 00 fc
RSP: 0018:ffffc90000007bb0 EFLAGS: 00000046
RAX: 000000000115d955 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000001974 RSI: 0000000000000006 RDI: 1ffff110219f9191
RBP: ffff88810cfc8c00 R08: 0000000000000000 R09: ffffffff88e36b17
R10: ffff88810cfc8d00 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000001800 R14: ffff88810cfc8c9c R15: 0000000000000006
FS:  0000000000000000(0000) GS:ffff8881f6800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2c627000 CR3: 0000000136f0e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 update_cfs_rq_load_avg kernel/sched/fair.c:4072 [inline]
 update_load_avg+0x153/0x1de0 kernel/sched/fair.c:4185
 enqueue_entity kernel/sched/fair.c:4616 [inline]
 enqueue_task_fair+0x2af/0x1ed0 kernel/sched/fair.c:5937
 enqueue_task kernel/sched/core.c:2060 [inline]
 activate_task kernel/sched/core.c:2085 [inline]
 ttwu_do_activate+0x181/0x450 kernel/sched/core.c:3664
 ttwu_queue kernel/sched/core.c:3869 [inline]
 try_to_wake_up+0xb81/0x1f20 kernel/sched/core.c:4192
 hrtimer_wakeup+0x43/0x60 kernel/time/hrtimer.c:1939
 __run_hrtimer kernel/time/hrtimer.c:1685 [inline]
 __hrtimer_run_queues+0x690/0xfb0 kernel/time/hrtimer.c:1749
 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1096 [inline]
 __sysvec_apic_timer_interrupt+0x17c/0x640 arch/x86/kernel/apic/apic.c:1113
 sysvec_apic_timer_interrupt+0x89/0xc0 arch/x86/kernel/apic/apic.c:1107
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:173 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:207
Code: 48 89 ef 5d e9 91 f6 1e 00 5d be 03 00 00 00 e9 d6 5c d0 00 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 49 a4 bb 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b
RSP: 0018:ffffc9000212eac0 EFLAGS: 00000246
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000c5ec000
RDX: 0000000000040000 RSI: ffffffff812cee21 RDI: 0000000000000007
RBP: ffffc9000212eb00 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000057
R13: ffff88810089b880 R14: 0000000000000200 R15: ffffc9000212ec20
 console_trylock_spinning kernel/printk/printk.c:1919 [inline]
 vprintk_emit+0x3f7/0x5f0 kernel/printk/printk.c:2267
 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4736
 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4747
 __netdev_printk+0x1c6/0x27a net/core/dev.c:11213
 netdev_warn+0xd7/0x109 net/core/dev.c:11266
 asix_read_cmd.cold+0x53/0x60 drivers/net/usb/asix_common.c:33
 asix_check_host_enable+0xfd/0x1c0 drivers/net/usb/asix_common.c:102
 __asix_mdio_read+0x93/0x220 drivers/net/usb/asix_common.c:506
 asix_phy_reset+0x104/0x170 drivers/net/usb/asix_devices.c:215
 ax88172_bind+0x437/0x5f0 drivers/net/usb/asix_devices.c:275
 usbnet_probe+0xb4a/0x2680 drivers/net/usb/usbnet.c:1745
 usb_probe_interface+0x30b/0x7f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:560 [inline]
 really_probe+0x249/0xb90 drivers/base/dd.c:639
 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808
 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbd5/0x1e90 drivers/base/core.c:3517
 usb_set_configuration+0x1019/0x1900 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0xba/0x100 drivers/usb/core/generic.c:238
 usb_probe_device+0xd4/0x2c0 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:560 [inline]
 really_probe+0x249/0xb90 drivers/base/dd.c:639
 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:778
 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:808
 __device_attach_driver+0x1d0/0x2e0 drivers/base/dd.c:936
 bus_for_each_drv+0x15f/0x1e0 drivers/base/bus.c:427
 __device_attach+0x1e4/0x530 drivers/base/dd.c:1008
 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:487
 device_add+0xbd5/0x1e90 drivers/base/core.c:3517
 usb_new_device.cold+0x685/0x10ad drivers/usb/core/hub.c:2573
 hub_port_connect drivers/usb/core/hub.c:5405 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5549 [inline]
 port_event drivers/usb/core/hub.c:5709 [inline]
 hub_event+0x2d58/0x4810 drivers/usb/core/hub.c:5791
 process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2ea/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/11/10 09:14 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing d65e6b6e884a b2488a87 .config console log report info ci2-upstream-usb INFO: task hung in usb_remote_wakeup
2022/09/21 08:20 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 7eb2bf871454 c4b8ccfd .config console log report info [disk image] [vmlinux] ci2-upstream-usb INFO: task hung in usb_remote_wakeup
* Struck through repros no longer work on HEAD.