INFO: task kworker/0:1:7 blocked for more than 143 seconds. Not tainted 5.16.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:1 state:D stack:21840 pid: 7 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4972 [inline] __schedule+0x931/0x2360 kernel/sched/core.c:6253 schedule+0xd2/0x260 kernel/sched/core.c:6326 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 unregister_netdev+0xe/0x20 net/core/dev.c:11138 usbnet_disconnect+0x139/0x270 drivers/net/usb/usbnet.c:1623 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205 device_release_driver_internal drivers/base/dd.c:1236 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1259 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529 device_del+0x502/0xd60 drivers/base/core.c:3581 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2228 hub_port_connect drivers/usb/core/hub.c:5202 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x1e39/0x44d0 drivers/usb/core/hub.c:5742 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 worker_thread+0x65d/0x1130 kernel/workqueue.c:2445 kthread+0x40b/0x500 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task kworker/1:5:23447 blocked for more than 144 seconds. Not tainted 5.16.0-rc8-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:5 state:D stack:24632 pid:23447 ppid: 2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:4972 [inline] __schedule+0x931/0x2360 kernel/sched/core.c:6253 schedule+0xd2/0x260 kernel/sched/core.c:6326 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1857 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common kernel/sched/completion.c:106 [inline] wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion+0x174/0x270 kernel/sched/completion.c:138 r871xu_dev_remove+0x6e/0x2c0 drivers/staging/rtl8712/usb_intf.c:597 usb_unbind_interface+0x1d8/0x8e0 drivers/usb/core/driver.c:458 __device_release_driver+0x5d7/0x700 drivers/base/dd.c:1205 device_release_driver_internal drivers/base/dd.c:1236 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1259 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:529 device_del+0x502/0xd60 drivers/base/core.c:3581 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1419 usb_disconnect.cold+0x27a/0x78e drivers/usb/core/hub.c:2228 hub_port_connect drivers/usb/core/hub.c:5202 [inline] hub_port_connect_change drivers/usb/core/hub.c:5502 [inline] port_event drivers/usb/core/hub.c:5660 [inline] hub_event+0x1e39/0x44d0 drivers/usb/core/hub.c:5742 process_one_work+0x9b2/0x1660 kernel/workqueue.c:2298 process_scheduled_works kernel/workqueue.c:2361 [inline] worker_thread+0x83c/0x1130 kernel/workqueue.c:2447 kthread+0x40b/0x500 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Showing all locks held in the system: 6 locks held by kworker/0:1/7: #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc9000007fdb0 ( (work_completion)(&hub->events) ){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffff88810ce28220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88810ce28220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688 #3: ffff88811b90d220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #3: ffff88811b90d220 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x78e drivers/usb/core/hub.c:2219 #4: ffff88810e8541a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #4: ffff88810e8541a8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1032 [inline] #4: ffff88810e8541a8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal drivers/base/dd.c:1233 [inline] #4: ffff88810e8541a8 (&dev->mutex){....}-{3:3}, at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1259 #5: ffffffff8886b268 (rtnl_mutex){+.+.}-{3:3}, at: unregister_netdev+0xe/0x20 net/core/dev.c:11138 1 lock held by khungtaskd/25: #0: ffffffff87891700 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458 4 locks held by dhcpcd/1204: 2 locks held by getty/1226: #0: ffff88810d977098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252 #1: ffffc900000432e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113 5 locks held by kworker/1:8/14312: #0: ffff8881037ab138 ((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:1198 [inline] ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc9000927fdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffff88810ceb0220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88810ceb0220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688 #3: ffff8881037d1220 (&dev->mutex ){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] ){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944 #4: ffff888116e811a8 (&dev->mutex){....}-{3:3} , at: device_lock include/linux/device.h:760 [inline] , at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944 3 locks held by kworker/0:7/22292: #0: ffff88810e224138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff88810e224138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff88810e224138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff88810e224138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] #0: ffff88810e224138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] #0: ffff88810e224138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc9000a00fdb0 ((addr_chk_work).work ){+.+.}-{0:0} , at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffffffff8886b268 (rtnl_mutex ){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4595 3 locks held by kworker/1:4/30019: #0: ffff888100064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888100064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888100064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888100064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] #0: ffff888100064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] #0: ffff888100064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc9000c06fdb0 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffffffff8886b268 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x11/0x50 net/core/dev.c:10458 3 locks held by kworker/1:3/7927: #0: ffff888100064d38 ((wq_completion)events ){+.+.}-{0:0} , at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] , at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] , at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] , at: set_work_data kernel/workqueue.c:635 [inline] , at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] , at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc9000af0fdb0 ((work_completion)(&fw_work->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffff88810ceb0220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88810ceb0220 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_fail drivers/net/wireless/ath/ath9k/hif_usb.c:1129 [inline] #2: ffff88810ceb0220 (&dev->mutex){....}-{3:3}, at: ath9k_hif_usb_firmware_cb+0x3ac/0x530 drivers/net/wireless/ath/ath9k/hif_usb.c:1262 6 locks held by kworker/0:4/11440: #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc9000b2a7db0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffff88810cf80220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88810cf80220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688 #3: ffff8881136b6220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #3: ffff8881136b6220 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944 #4: ffff8881421791a8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #4: ffff8881421791a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 drivers/base/dd.c:944 #5: ffffffff8886b268 (rtnl_mutex){+.+.}-{3:3}, at: register_netdev+0x11/0x50 net/core/dev.c:10458 3 locks held by kworker/0:6/18593: 5 locks held by kworker/1:5/23447: #0: ffff8881037ab138 ((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:1198 [inline] ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc900053ffdb0 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffff88810ce38220 (&dev->mutex){....}-{3:3} , at: device_lock include/linux/device.h:760 [inline] , at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688 #3: ffff88813e497220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #3: ffff88813e497220 (&dev->mutex){....}-{3:3}, at: usb_disconnect.cold+0x43/0x78e drivers/usb/core/hub.c:2219 #4: ffff8881404291a8 (&dev->mutex){....}-{3:3} , at: device_lock include/linux/device.h:760 [inline] , at: __device_driver_lock drivers/base/dd.c:1032 [inline] , at: device_release_driver_internal drivers/base/dd.c:1233 [inline] , at: device_release_driver+0x1c/0x40 drivers/base/dd.c:1259 3 locks held by kworker/1:9/26331: #0: ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] ffff8881037ab138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x896/0x1660 kernel/workqueue.c:2269 #1: ffffc90009e2fdb0 ((work_completion)(&hub->events) ){+.+.}-{0:0} , at: process_one_work+0x8ca/0x1660 kernel/workqueue.c:2273 #2: ffff88810ce90220 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline] #2: ffff88810ce90220 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x44d0 drivers/usb/core/hub.c:5688 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 25 Comm: khungtaskd Not tainted 5.16.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __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+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xc1d/0xf50 kernel/hung_task.c:295 kthread+0x40b/0x500 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1204 Comm: dhcpcd Not tainted 5.16.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:account_entity_enqueue kernel/sched/fair.c:2954 [inline] RIP: 0010:enqueue_entity kernel/sched/fair.c:4260 [inline] RIP: 0010:enqueue_task_fair+0x40c/0x1fc0 kernel/sched/fair.c:5588 Code: 00 00 48 89 fa 48 c1 ea 03 42 0f b6 14 2a 84 d2 74 09 80 fa 03 0f 8e a0 13 00 00 44 8b 90 98 01 00 00 31 c0 45 85 d2 0f 9f c0 <85> c0 74 23 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 RSP: 0018:ffffc90000158c68 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff888110780080 RCX: 000000000000b7e4 RDX: 0000000000000000 RSI: 1ffff11021a8f919 RDI: ffff88810d47d198 RBP: 0000000000000001 R08: 0000000000000000 R09: ffff8881f69378d0 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8881f69378c0 R13: dffffc0000000000 R14: ffff88810d47c800 R15: ffff88810d47c880 FS: 00007feadcd2a740(0000) GS:ffff8881f6900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe6612d7c8 CR3: 0000000116492000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: enqueue_task kernel/sched/core.c:1999 [inline] activate_task kernel/sched/core.c:2024 [inline] ttwu_do_activate+0x181/0x4c0 kernel/sched/core.c:3600 ttwu_queue kernel/sched/core.c:3796 [inline] try_to_wake_up+0x4d3/0x11d0 kernel/sched/core.c:4119 hrtimer_wakeup+0x43/0x60 kernel/time/hrtimer.c:1939 __run_hrtimer kernel/time/hrtimer.c:1685 [inline] __hrtimer_run_queues+0x609/0xe50 kernel/time/hrtimer.c:1749 hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1086 [inline] __sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1103 sysvec_apic_timer_interrupt+0x89/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200 Code: 48 89 ef 5d e9 91 54 2e 00 5d be 03 00 00 00 e9 c6 43 c0 00 66 0f 1f 44 00 00 48 8b be b0 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 49 ec be 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc90000f6f290 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888110780000 RSI: ffffffff812b9f91 RDI: 0000000000000003 RBP: ffffc90000f6f2d0 R08: 0000000000000000 R09: ffffffff8a7b589f R10: ffffffff812b9f87 R11: 0000000000000000 R12: 0000000000000038 R13: ffff888104d98000 R14: 0000000000000200 R15: ffffc90000f6f3f0 console_trylock_spinning kernel/printk/printk.c:1885 [inline] vprintk_emit+0x377/0x4f0 kernel/printk/printk.c:2244 dev_vprintk_emit+0x36e/0x3b2 drivers/base/core.c:4594 dev_printk_emit+0xba/0xf1 drivers/base/core.c:4605 __netdev_printk+0x1c6/0x27a net/core/dev.c:11447 netdev_warn+0xd7/0x109 net/core/dev.c:11500 asix_write_cmd.cold+0x3a/0x46 drivers/net/usb/asix_common.c:54 asix_set_sw_mii drivers/net/usb/asix_common.c:300 [inline] asix_check_host_enable+0x9e/0x1c0 drivers/net/usb/asix_common.c:74 asix_mdio_read+0x90/0x220 drivers/net/usb/asix_common.c:499 asix_phy_reset+0x104/0x170 drivers/net/usb/asix_devices.c:215 ax88178_reset+0x3f5/0x1310 drivers/net/usb/asix_devices.c:977 usbnet_open+0xc8/0x5d0 drivers/net/usb/usbnet.c:894 __dev_open+0x2bc/0x4d0 net/core/dev.c:1490 __dev_change_flags+0x583/0x750 net/core/dev.c:8796 dev_change_flags+0x93/0x170 net/core/dev.c:8867 devinet_ioctl+0x15d1/0x1ca0 net/ipv4/devinet.c:1144 inet_ioctl+0x1e6/0x320 net/ipv4/af_inet.c:969 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7feadce180e7 Code: 3c 1c e8 1c ff ff ff 85 c0 79 87 49 c7 c4 ff ff ff ff 5b 5d 4c 89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 61 9d 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007fff58fee8a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007feadcd2a6c8 RCX: 00007feadce180e7 RDX: 00007fff58ffea98 RSI: 0000000000008914 RDI: 0000000000000005 RBP: 00007fff5900ec48 R08: 00007fff58ffea58 R09: 00007fff58ffea08 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff58ffea98 R14: 0000000000000028 R15: 0000000000008914 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 48 89 fa mov %rdi,%rdx 5: 48 c1 ea 03 shr $0x3,%rdx 9: 42 0f b6 14 2a movzbl (%rdx,%r13,1),%edx e: 84 d2 test %dl,%dl 10: 74 09 je 0x1b 12: 80 fa 03 cmp $0x3,%dl 15: 0f 8e a0 13 00 00 jle 0x13bb 1b: 44 8b 90 98 01 00 00 mov 0x198(%rax),%r10d 22: 31 c0 xor %eax,%eax 24: 45 85 d2 test %r10d,%r10d 27: 0f 9f c0 setg %al * 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 74 23 je 0x51 2e: 49 8d 7c 24 18 lea 0x18(%r12),%rdi 33: 48 89 f8 mov %rdi,%rax 36: 48 c1 e8 03 shr $0x3,%rax 3a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 3f: 84 .byte 0x84