Quite often when i disconnect my dvb-t stick all my usb devices stop working. Here is the dmesg output:
[467616.983504] usb 1-3: USB disconnect, device number 3 [467616.986622] af9015: bulk message failed:-19 (8/0) [467616.986630] af9013: I2C read failed reg:d417 [467616.986636] af9015: bulk message failed:-19 (8/0) [467616.986640] af9013: I2C read failed reg:d417 [467616.986646] af9015: bulk message failed:-19 (9/0) [467616.986651] mxl5007t_write_reg: 469: failed! [467616.986656] mxl5007t_sleep: error -121 on line 715 [467616.986661] af9015: bulk message failed:-19 (9/0) [467616.986665] mxl5007t_write_reg: 469: failed! [467616.986670] mxl5007t_sleep: error -121 on line 717 [467616.986675] af9015: bulk message failed:-19 (8/0) [467616.986680] af9013: I2C read failed reg:d417 [467616.986685] af9015: bulk message failed:-19 (8/0) [467616.986689] af9013: I2C read failed reg:d417 [467616.986695] af9015: bulk message failed:-19 (8/0) [467616.986699] af9013: I2C read failed reg:d730 [467760.640056] INFO: task khubd:31 blocked for more than 120 seconds. [467760.640066] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [467760.640075] khubd D cac05b7e 0 31 2 0x00000000 [467760.640087] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [467760.640109] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [467760.640131] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [467760.640153] Call Trace: [467760.640168] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [467760.640178] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [467760.640186] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [467760.640194] [<c15a39e5>] schedule+0x35/0x50 [467760.640216] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [467760.640228] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [467760.640236] [<c10799a0>] ? add_wait_queue+0x50/0x50 [467760.640247] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [467760.640257] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [467760.640267] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [467760.640276] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [467760.640286] [<c138433b>] __device_release_driver+0x5b/0xb0 [467760.640293] [<c13843b4>] device_release_driver+0x24/0x40 [467760.640301] [<c1383f2a>] bus_remove_device+0x5a/0x80 [467760.640308] [<c1381c47>] device_del+0xe7/0x150 [467760.640315] [<c1413349>] usb_disable_device+0x89/0x1b0 [467760.640323] [<c140cf0e>] usb_disconnect+0x7e/0x100 [467760.640331] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [467760.640338] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [467760.640346] [<c140a040>] ? clear_port_feature+0x50/0x60 [467760.640354] [<c140e5ed>] hub_events+0x43d/0x570 [467760.640362] [<c1079a9d>] ? finish_wait+0x4d/0x70 [467760.640369] [<c140e720>] ? hub_events+0x570/0x570 [467760.640376] [<c140e745>] hub_thread+0x25/0x140 [467760.640383] [<c10799a0>] ? add_wait_queue+0x50/0x50 [467760.640391] [<c107919d>] kthread+0x6d/0x80 [467760.640398] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [467760.640406] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [467880.640064] INFO: task khubd:31 blocked for more than 120 seconds. [467880.640074] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [467880.640081] khubd D cac05b7e 0 31 2 0x00000000 [467880.640092] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [467880.640108] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [467880.640122] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [467880.640137] Call Trace: [467880.640152] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [467880.640162] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [467880.640171] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [467880.640178] [<c15a39e5>] schedule+0x35/0x50 [467880.640201] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [467880.640212] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [467880.640221] [<c10799a0>] ? add_wait_queue+0x50/0x50 [467880.640232] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [467880.640242] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [467880.640253] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [467880.640261] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [467880.640271] [<c138433b>] __device_release_driver+0x5b/0xb0 [467880.640279] [<c13843b4>] device_release_driver+0x24/0x40 [467880.640286] [<c1383f2a>] bus_remove_device+0x5a/0x80 [467880.640294] [<c1381c47>] device_del+0xe7/0x150 [467880.640300] [<c1413349>] usb_disable_device+0x89/0x1b0 [467880.640309] [<c140cf0e>] usb_disconnect+0x7e/0x100 [467880.640316] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [467880.640324] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [467880.640332] [<c140a040>] ? clear_port_feature+0x50/0x60 [467880.640339] [<c140e5ed>] hub_events+0x43d/0x570 [467880.640347] [<c1079a9d>] ? finish_wait+0x4d/0x70 [467880.640354] [<c140e720>] ? hub_events+0x570/0x570 [467880.640361] [<c140e745>] hub_thread+0x25/0x140 [467880.640368] [<c10799a0>] ? add_wait_queue+0x50/0x50 [467880.640376] [<c107919d>] kthread+0x6d/0x80 [467880.640383] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [467880.640391] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468000.640056] INFO: task khubd:31 blocked for more than 120 seconds. [468000.640065] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468000.640071] khubd D cac05b7e 0 31 2 0x00000000 [468000.640082] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468000.640098] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468000.640113] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468000.640128] Call Trace: [468000.640144] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468000.640154] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468000.640164] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468000.640171] [<c15a39e5>] schedule+0x35/0x50 [468000.640196] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468000.640207] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468000.640217] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468000.640228] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468000.640238] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468000.640249] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468000.640258] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468000.640268] [<c138433b>] __device_release_driver+0x5b/0xb0 [468000.640276] [<c13843b4>] device_release_driver+0x24/0x40 [468000.640284] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468000.640291] [<c1381c47>] device_del+0xe7/0x150 [468000.640298] [<c1413349>] usb_disable_device+0x89/0x1b0 [468000.640307] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468000.640315] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468000.640322] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468000.640330] [<c140a040>] ? clear_port_feature+0x50/0x60 [468000.640338] [<c140e5ed>] hub_events+0x43d/0x570 [468000.640346] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468000.640353] [<c140e720>] ? hub_events+0x570/0x570 [468000.640360] [<c140e745>] hub_thread+0x25/0x140 [468000.640368] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468000.640375] [<c107919d>] kthread+0x6d/0x80 [468000.640383] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468000.640391] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468120.640050] INFO: task khubd:31 blocked for more than 120 seconds. [468120.640057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468120.640064] khubd D cac05b7e 0 31 2 0x00000000 [468120.640074] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468120.640090] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468120.640104] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468120.640119] Call Trace: [468120.640134] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468120.640144] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468120.640153] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468120.640160] [<c15a39e5>] schedule+0x35/0x50 [468120.640183] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468120.640195] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468120.640203] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468120.640214] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468120.640224] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468120.640234] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468120.640243] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468120.640253] [<c138433b>] __device_release_driver+0x5b/0xb0 [468120.640261] [<c13843b4>] device_release_driver+0x24/0x40 [468120.640268] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468120.640275] [<c1381c47>] device_del+0xe7/0x150 [468120.640282] [<c1413349>] usb_disable_device+0x89/0x1b0 [468120.640290] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468120.640298] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468120.640305] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468120.640313] [<c140a040>] ? clear_port_feature+0x50/0x60 [468120.640321] [<c140e5ed>] hub_events+0x43d/0x570 [468120.640329] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468120.640336] [<c140e720>] ? hub_events+0x570/0x570 [468120.640343] [<c140e745>] hub_thread+0x25/0x140 [468120.640350] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468120.640358] [<c107919d>] kthread+0x6d/0x80 [468120.640365] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468120.640373] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468240.640061] INFO: task khubd:31 blocked for more than 120 seconds. [468240.640069] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468240.640075] khubd D cac05b7e 0 31 2 0x00000000 [468240.640085] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468240.640101] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468240.640116] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468240.640131] Call Trace: [468240.640146] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468240.640156] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468240.640165] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468240.640172] [<c15a39e5>] schedule+0x35/0x50 [468240.640195] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468240.640207] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468240.640215] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468240.640226] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468240.640236] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468240.640247] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468240.640256] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468240.640265] [<c138433b>] __device_release_driver+0x5b/0xb0 [468240.640273] [<c13843b4>] device_release_driver+0x24/0x40 [468240.640281] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468240.640288] [<c1381c47>] device_del+0xe7/0x150 [468240.640295] [<c1413349>] usb_disable_device+0x89/0x1b0 [468240.640303] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468240.640311] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468240.640318] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468240.640326] [<c140a040>] ? clear_port_feature+0x50/0x60 [468240.640334] [<c140e5ed>] hub_events+0x43d/0x570 [468240.640341] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468240.640349] [<c140e720>] ? hub_events+0x570/0x570 [468240.640356] [<c140e745>] hub_thread+0x25/0x140 [468240.640363] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468240.640370] [<c107919d>] kthread+0x6d/0x80 [468240.640378] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468240.640386] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468360.640054] INFO: task khubd:31 blocked for more than 120 seconds. [468360.640061] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468360.640067] khubd D cac05b7e 0 31 2 0x00000000 [468360.640078] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468360.640094] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468360.640109] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468360.640124] Call Trace: [468360.640138] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468360.640148] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468360.640157] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468360.640164] [<c15a39e5>] schedule+0x35/0x50 [468360.640187] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468360.640198] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468360.640207] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468360.640218] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468360.640228] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468360.640238] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468360.640247] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468360.640257] [<c138433b>] __device_release_driver+0x5b/0xb0 [468360.640265] [<c13843b4>] device_release_driver+0x24/0x40 [468360.640272] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468360.640280] [<c1381c47>] device_del+0xe7/0x150 [468360.640286] [<c1413349>] usb_disable_device+0x89/0x1b0 [468360.640295] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468360.640302] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468360.640310] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468360.640318] [<c140a040>] ? clear_port_feature+0x50/0x60 [468360.640325] [<c140e5ed>] hub_events+0x43d/0x570 [468360.640333] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468360.640340] [<c140e720>] ? hub_events+0x570/0x570 [468360.640347] [<c140e745>] hub_thread+0x25/0x140 [468360.640354] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468360.640362] [<c107919d>] kthread+0x6d/0x80 [468360.640369] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468360.640377] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468480.640043] INFO: task khubd:31 blocked for more than 120 seconds. [468480.640050] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468480.640057] khubd D cac05b7e 0 31 2 0x00000000 [468480.640067] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468480.640083] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468480.640097] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468480.640112] Call Trace: [468480.640127] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468480.640137] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468480.640146] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468480.640153] [<c15a39e5>] schedule+0x35/0x50 [468480.640176] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468480.640187] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468480.640196] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468480.640207] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468480.640217] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468480.640228] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468480.640237] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468480.640246] [<c138433b>] __device_release_driver+0x5b/0xb0 [468480.640254] [<c13843b4>] device_release_driver+0x24/0x40 [468480.640262] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468480.640269] [<c1381c47>] device_del+0xe7/0x150 [468480.640276] [<c1413349>] usb_disable_device+0x89/0x1b0 [468480.640284] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468480.640292] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468480.640299] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468480.640307] [<c140a040>] ? clear_port_feature+0x50/0x60 [468480.640315] [<c140e5ed>] hub_events+0x43d/0x570 [468480.640322] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468480.640330] [<c140e720>] ? hub_events+0x570/0x570 [468480.640337] [<c140e745>] hub_thread+0x25/0x140 [468480.640344] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468480.640351] [<c107919d>] kthread+0x6d/0x80 [468480.640358] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468480.640367] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468600.640053] INFO: task khubd:31 blocked for more than 120 seconds. [468600.640060] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468600.640067] khubd D cac05b7e 0 31 2 0x00000000 [468600.640077] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468600.640093] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468600.640107] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468600.640122] Call Trace: [468600.640137] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468600.640147] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468600.640156] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468600.640163] [<c15a39e5>] schedule+0x35/0x50 [468600.640187] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468600.640198] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468600.640207] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468600.640218] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468600.640228] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468600.640238] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468600.640247] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468600.640257] [<c138433b>] __device_release_driver+0x5b/0xb0 [468600.640265] [<c13843b4>] device_release_driver+0x24/0x40 [468600.640272] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468600.640280] [<c1381c47>] device_del+0xe7/0x150 [468600.640286] [<c1413349>] usb_disable_device+0x89/0x1b0 [468600.640295] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468600.640302] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468600.640310] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468600.640318] [<c140a040>] ? clear_port_feature+0x50/0x60 [468600.640325] [<c140e5ed>] hub_events+0x43d/0x570 [468600.640333] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468600.640340] [<c140e720>] ? hub_events+0x570/0x570 [468600.640347] [<c140e745>] hub_thread+0x25/0x140 [468600.640354] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468600.640362] [<c107919d>] kthread+0x6d/0x80 [468600.640369] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468600.640377] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468720.640047] INFO: task khubd:31 blocked for more than 120 seconds. [468720.640055] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468720.640061] khubd D cac05b7e 0 31 2 0x00000000 [468720.640071] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468720.640087] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468720.640102] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468720.640117] Call Trace: [468720.640132] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468720.640141] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468720.640150] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468720.640158] [<c15a39e5>] schedule+0x35/0x50 [468720.640180] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468720.640192] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468720.640201] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468720.640211] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468720.640221] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468720.640232] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468720.640241] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468720.640250] [<c138433b>] __device_release_driver+0x5b/0xb0 [468720.640258] [<c13843b4>] device_release_driver+0x24/0x40 [468720.640266] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468720.640273] [<c1381c47>] device_del+0xe7/0x150 [468720.640280] [<c1413349>] usb_disable_device+0x89/0x1b0 [468720.640288] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468720.640296] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468720.640303] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468720.640311] [<c140a040>] ? clear_port_feature+0x50/0x60 [468720.640319] [<c140e5ed>] hub_events+0x43d/0x570 [468720.640327] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468720.640334] [<c140e720>] ? hub_events+0x570/0x570 [468720.640341] [<c140e745>] hub_thread+0x25/0x140 [468720.640348] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468720.640356] [<c107919d>] kthread+0x6d/0x80 [468720.640363] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468720.640371] [<c15acd7e>] kernel_thread_helper+0x6/0x10 [468840.640051] INFO: task khubd:31 blocked for more than 120 seconds. [468840.640058] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [468840.640065] khubd D cac05b7e 0 31 2 0x00000000 [468840.640075] f52bddcc 00000046 f397b2c0 cac05b7e f52bdd64 c1807020 c192ce00 c192ce00 [468840.640091] f6ca3110 0001a94b f7bc0e00 f5136580 c1807020 00000000 00000001 f5136580 [468840.640105] c1053b90 00100100 00200200 f397b2c0 f3213fc8 f51dc968 f52bdda8 c1036628 [468840.640120] Call Trace: [468840.640135] [<c1053b90>] ? try_to_wake_up+0x190/0x190 [468840.640145] [<c1036628>] ? default_spin_lock_flags+0x8/0x10 [468840.640154] [<c15a55ed>] ? _raw_spin_lock_irqsave+0x2d/0x40 [468840.640161] [<c15a39e5>] schedule+0x35/0x50 [468840.640184] [<f9d69835>] dvb_unregister_frontend+0xa5/0xf0 [dvb_core] [468840.640195] [<f9214136>] ? rc_free_device+0x36/0x40 [rc_core] [468840.640204] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468840.640214] [<f9225849>] dvb_usb_adapter_frontend_exit+0x39/0x70 [dvb_usb] [468840.640224] [<f922458b>] dvb_usb_exit+0x3b/0xb0 [dvb_usb] [468840.640235] [<f9224642>] dvb_usb_device_exit+0x42/0x60 [dvb_usb] [468840.640244] [<c14152ec>] usb_unbind_interface+0x3c/0x140 [468840.640253] [<c138433b>] __device_release_driver+0x5b/0xb0 [468840.640261] [<c13843b4>] device_release_driver+0x24/0x40 [468840.640269] [<c1383f2a>] bus_remove_device+0x5a/0x80 [468840.640276] [<c1381c47>] device_del+0xe7/0x150 [468840.640283] [<c1413349>] usb_disable_device+0x89/0x1b0 [468840.640291] [<c140cf0e>] usb_disconnect+0x7e/0x100 [468840.640299] [<c140dbfa>] hub_port_connect_change+0x8a/0x640 [468840.640306] [<c14129bb>] ? usb_control_msg+0xdb/0x100 [468840.640314] [<c140a040>] ? clear_port_feature+0x50/0x60 [468840.640322] [<c140e5ed>] hub_events+0x43d/0x570 [468840.640329] [<c1079a9d>] ? finish_wait+0x4d/0x70 [468840.640337] [<c140e720>] ? hub_events+0x570/0x570 [468840.640344] [<c140e745>] hub_thread+0x25/0x140 [468840.640351] [<c10799a0>] ? add_wait_queue+0x50/0x50 [468840.640358] [<c107919d>] kthread+0x6d/0x80 [468840.640365] [<c1079130>] ? flush_kthread_worker+0x80/0x80 [468840.640374] [<c15acd7e>] kernel_thread_helper+0x6/0x10 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/558532 Title: After removing dvb-t usb stick (MSI Digivox duo, af9015 based)usb subsystem hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/558532/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
