Sometimes since updating to kernel 4.1 and now also with 4.2 usb doesn't work anymore, and dmesg shows this stuff. I then have to reboot to fix it. Does anyone have a recommendation for me? I can provide more information if required and also test patches, but it's very hard to reproduce this. I wasn't even using the sd card reader ( rtsx_usb) at that time, no card was inserted since last boot. I also have data corruption issues with the (build in) sd card reader when using 128 GB micrSD cards that might be related to this, thats why I'm not using it anymore. regards marcus [14323.500872] perf interrupt took too long (2536 > 2495), lowering kernel.perf_event_max_sample_rate to 50100 [15308.499135] usb 3-2: new high-speed USB device number 3 using xhci_hcd [17179.246883] usb 3-3: reset high-speed USB device number 2 using xhci_hcd [17194.737157] usb 3-3: device descriptor read/64, error -110 [17210.320985] usb 3-3: device descriptor read/64, error -110 [17210.584575] usb 3-3: reset high-speed USB device number 2 using xhci_hcd [17226.068319] usb 3-3: device descriptor read/64, error -110 [17241.652062] usb 3-3: device descriptor read/64, error -110 [17241.915709] usb 3-3: reset high-speed USB device number 2 using xhci_hcd [17246.931198] xhci_hcd 0000:00:14.0: Command completion event does not match command [17246.931251] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [17252.150229] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [17252.353797] usb 3-3: device not accepting address 2, error -62 [17252.513958] usb 3-3: reset high-speed USB device number 2 using xhci_hcd [17257.529555] xhci_hcd 0000:00:14.0: Command completion event does not match command [17257.529577] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [17262.748629] xhci_hcd 0000:00:14.0: Timeout while waiting for setup device command [17262.952129] usb 3-3: device not accepting address 2, error -62 [17262.952297] usb 3-3: USB disconnect, device number 2 [17419.330749] INFO: task rtsx_usb_ms_1:461 blocked for more than 120 seconds. [17419.330757] Not tainted 4.2.1-1-ARCH #1 [17419.330759] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17419.330762] rtsx_usb_ms_1 D ffff8801af295200 0 461 2 0x00000000 [17419.330769] ffff8801a50efce8 0000000000000046 ffff8801a79f9b80 ffff8801a66b9b80 [17419.330773] ffff8801a50efcc8 ffff8801a50f0000 00000000fffffffe ffff8801a50efd88 [17419.330777] 0000000000000000 0000000000000258 ffff8801a50efd08 ffffffff8156d2ae [17419.330781] Call Trace: [17419.330793] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17419.330804] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17419.330811] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17419.330819] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17419.330826] [<ffffffffa004dae5>] usb_start_wait_urb+0xe5/0x170 [usbcore] [17419.330832] [<ffffffff810dca6c>] ? del_timer_sync+0x4c/0x60 [17419.330839] [<ffffffffa004dfcd>] usb_bulk_msg+0xbd/0x160 [usbcore] [17419.330845] [<ffffffffa00a4303>] rtsx_usb_send_cmd+0x63/0x90 [rtsx_usb] [17419.330849] [<ffffffffa00a492c>] rtsx_usb_read_register+0x6c/0xc0 [rtsx_usb] [17419.330854] [<ffffffffa04bf3ab>] rtsx_usb_detect_ms_card+0x6b/0x100 [rtsx_usb_ms] [17419.330859] [<ffffffffa04bf340>] ? ms_pull_ctl_enable_lqfp48+0x100/0x100 [rtsx_usb_ms] [17419.330864] [<ffffffff81092518>] kthread+0xd8/0xf0 [17419.330869] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17419.330873] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17419.330878] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17419.330914] INFO: task kworker/0:3:11105 blocked for more than 120 seconds. [17419.330916] Not tainted 4.2.1-1-ARCH #1 [17419.330918] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17419.330920] kworker/0:3 D ffff8801af215200 0 11105 2 0x00000000 [17419.330931] Workqueue: usb_hub_wq hub_event [usbcore] [17419.330933] ffff8801a4e739f8 0000000000000046 ffffffff81812500 ffff880098fd5280 [17419.330937] ffff8801a4e739d8 ffff8801a4e74000 ffff8800c47e7210 ffff8801a76036c0 [17419.330940] ffff8801a6657408 ffff8800c47e71f0 ffff8801a4e73a18 ffffffff8156d2ae [17419.330944] Call Trace: [17419.330948] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17419.330955] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17419.330959] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17419.330965] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17419.330972] [<ffffffffa004c214>] usb_hcd_flush_endpoint+0xa4/0x160 [usbcore] [17419.330977] [<ffffffff812459a9>] ? kernfs_put+0xf9/0x1a0 [17419.330984] [<ffffffffa004f083>] usb_disable_endpoint+0xa3/0xb0 [usbcore] [17419.330990] [<ffffffffa004f0d5>] usb_disable_interface+0x45/0x60 [usbcore] [17419.330998] [<ffffffffa0051a6c>] usb_unbind_interface+0x1cc/0x270 [usbcore] [17419.331003] [<ffffffff813de783>] ? rpm_idle+0x23/0x260 [17419.331010] [<ffffffff813d4011>] __device_release_driver+0xa1/0x150 [17419.331015] [<ffffffff813d40e3>] device_release_driver+0x23/0x30 [17419.331019] [<ffffffff813d3745>] bus_remove_device+0x105/0x180 [17419.331024] [<ffffffff813cfc19>] device_del+0x139/0x260 [17419.331030] [<ffffffffa004f179>] usb_disable_device+0x89/0x270 [usbcore] [17419.331037] [<ffffffffa0044d92>] usb_disconnect+0x92/0x2b0 [usbcore] [17419.331044] [<ffffffffa0046f7d>] hub_event+0x73d/0x1530 [usbcore] [17419.331049] [<ffffffff8108c57b>] process_one_work+0x14b/0x440 [17419.331053] [<ffffffff8108c8b8>] worker_thread+0x48/0x4a0 [17419.331057] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17419.331062] [<ffffffff81092518>] kthread+0xd8/0xf0 [17419.331066] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17419.331069] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17419.331074] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17419.331077] INFO: task kworker/u8:3:11805 blocked for more than 120 seconds. [17419.331079] Not tainted 4.2.1-1-ARCH #1 [17419.331081] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17419.331083] kworker/u8:3 D ffff8801af215200 0 11805 2 0x00000000 [17419.331093] Workqueue: kmmcd mmc_rescan [mmc_core] [17419.331095] ffff88009ab5bcc8 0000000000000046 ffffffff81812500 ffff88017e1a0dc0 [17419.331099] 0355002501e60004 ffff88009ab5c000 ffff8800c469ef0c ffff88017e1a0dc0 [17419.331103] 00000000ffffffff ffff8800c469ef10 ffff88009ab5bce8 ffffffff8156d2ae [17419.331107] Call Trace: [17419.331111] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17419.331115] [<ffffffff8156d695>] schedule_preempt_disabled+0x15/0x20 [17419.331119] [<ffffffff8156eaba>] __mutex_lock_slowpath+0xca/0x140 [17419.331123] [<ffffffff8156eb4b>] mutex_lock+0x1b/0x30 [17419.331129] [<ffffffffa0154df9>] sdmmc_get_cd+0x49/0xb0 [rtsx_usb_sdmmc] [17419.331135] [<ffffffffa020b996>] mmc_rescan+0x1f6/0x310 [mmc_core] [17419.331139] [<ffffffff8108c57b>] process_one_work+0x14b/0x440 [17419.331143] [<ffffffff8108c8b8>] worker_thread+0x48/0x4a0 [17419.331146] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17419.331150] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17419.331154] [<ffffffff81092518>] kthread+0xd8/0xf0 [17419.331159] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17419.331162] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17419.331166] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17539.462866] INFO: task rtsx_usb_ms_1:461 blocked for more than 120 seconds. [17539.462870] Not tainted 4.2.1-1-ARCH #1 [17539.462871] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17539.462872] rtsx_usb_ms_1 D ffff8801af295200 0 461 2 0x00000000 [17539.462877] ffff8801a50efce8 0000000000000046 ffff8801a79f9b80 ffff8801a66b9b80 [17539.462879] ffff8801a50efcc8 ffff8801a50f0000 00000000fffffffe ffff8801a50efd88 [17539.462881] 0000000000000000 0000000000000258 ffff8801a50efd08 ffffffff8156d2ae [17539.462883] Call Trace: [17539.462889] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17539.462895] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17539.462899] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17539.462902] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17539.462905] [<ffffffffa004dae5>] usb_start_wait_urb+0xe5/0x170 [usbcore] [17539.462908] [<ffffffff810dca6c>] ? del_timer_sync+0x4c/0x60 [17539.462911] [<ffffffffa004dfcd>] usb_bulk_msg+0xbd/0x160 [usbcore] [17539.462914] [<ffffffffa00a4303>] rtsx_usb_send_cmd+0x63/0x90 [rtsx_usb] [17539.462916] [<ffffffffa00a492c>] rtsx_usb_read_register+0x6c/0xc0 [rtsx_usb] [17539.462919] [<ffffffffa04bf3ab>] rtsx_usb_detect_ms_card+0x6b/0x100 [rtsx_usb_ms] [17539.462920] [<ffffffffa04bf340>] ? ms_pull_ctl_enable_lqfp48+0x100/0x100 [rtsx_usb_ms] [17539.462924] [<ffffffff81092518>] kthread+0xd8/0xf0 [17539.462926] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17539.462928] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17539.462930] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17539.462950] INFO: task kworker/0:3:11105 blocked for more than 120 seconds. [17539.462951] Not tainted 4.2.1-1-ARCH #1 [17539.462952] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17539.462952] kworker/0:3 D ffff8801af215200 0 11105 2 0x00000000 [17539.462958] Workqueue: usb_hub_wq hub_event [usbcore] [17539.462959] ffff8801a4e739f8 0000000000000046 ffffffff81812500 ffff880098fd5280 [17539.462960] ffff8801a4e739d8 ffff8801a4e74000 ffff8800c47e7210 ffff8801a76036c0 [17539.462962] ffff8801a6657408 ffff8800c47e71f0 ffff8801a4e73a18 ffffffff8156d2ae [17539.462964] Call Trace: [17539.462966] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17539.462970] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17539.462973] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17539.462976] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17539.462981] [<ffffffffa004c214>] usb_hcd_flush_endpoint+0xa4/0x160 [usbcore] [17539.462984] [<ffffffff812459a9>] ? kernfs_put+0xf9/0x1a0 [17539.462988] [<ffffffffa004f083>] usb_disable_endpoint+0xa3/0xb0 [usbcore] [17539.462991] [<ffffffffa004f0d5>] usb_disable_interface+0x45/0x60 [usbcore] [17539.462994] [<ffffffffa0051a6c>] usb_unbind_interface+0x1cc/0x270 [usbcore] [17539.462998] [<ffffffff813de783>] ? rpm_idle+0x23/0x260 [17539.463001] [<ffffffff813d4011>] __device_release_driver+0xa1/0x150 [17539.463003] [<ffffffff813d40e3>] device_release_driver+0x23/0x30 [17539.463005] [<ffffffff813d3745>] bus_remove_device+0x105/0x180 [17539.463007] [<ffffffff813cfc19>] device_del+0x139/0x260 [17539.463010] [<ffffffffa004f179>] usb_disable_device+0x89/0x270 [usbcore] [17539.463013] [<ffffffffa0044d92>] usb_disconnect+0x92/0x2b0 [usbcore] [17539.463016] [<ffffffffa0046f7d>] hub_event+0x73d/0x1530 [usbcore] [17539.463019] [<ffffffff8108c57b>] process_one_work+0x14b/0x440 [17539.463021] [<ffffffff8108c8b8>] worker_thread+0x48/0x4a0 [17539.463022] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17539.463024] [<ffffffff81092518>] kthread+0xd8/0xf0 [17539.463026] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17539.463028] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17539.463030] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17539.463032] INFO: task kworker/u8:3:11805 blocked for more than 120 seconds. [17539.463033] Not tainted 4.2.1-1-ARCH #1 [17539.463033] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17539.463034] kworker/u8:3 D ffff8801af215200 0 11805 2 0x00000000 [17539.463040] Workqueue: kmmcd mmc_rescan [mmc_core] [17539.463041] ffff88009ab5bcc8 0000000000000046 ffffffff81812500 ffff88017e1a0dc0 [17539.463042] 0355002501e60004 ffff88009ab5c000 ffff8800c469ef0c ffff88017e1a0dc0 [17539.463044] 00000000ffffffff ffff8800c469ef10 ffff88009ab5bce8 ffffffff8156d2ae [17539.463046] Call Trace: [17539.463048] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17539.463049] [<ffffffff8156d695>] schedule_preempt_disabled+0x15/0x20 [17539.463051] [<ffffffff8156eaba>] __mutex_lock_slowpath+0xca/0x140 [17539.463053] [<ffffffff8156eb4b>] mutex_lock+0x1b/0x30 [17539.463056] [<ffffffffa0154df9>] sdmmc_get_cd+0x49/0xb0 [rtsx_usb_sdmmc] [17539.463059] [<ffffffffa020b996>] mmc_rescan+0x1f6/0x310 [mmc_core] [17539.463060] [<ffffffff8108c57b>] process_one_work+0x14b/0x440 [17539.463062] [<ffffffff8108c8b8>] worker_thread+0x48/0x4a0 [17539.463064] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17539.463065] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17539.463067] [<ffffffff81092518>] kthread+0xd8/0xf0 [17539.463070] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17539.463071] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17539.463073] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17659.595056] INFO: task rtsx_usb_ms_1:461 blocked for more than 120 seconds. [17659.595064] Not tainted 4.2.1-1-ARCH #1 [17659.595066] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17659.595069] rtsx_usb_ms_1 D ffff8801af295200 0 461 2 0x00000000 [17659.595077] ffff8801a50efce8 0000000000000046 ffff8801a79f9b80 ffff8801a66b9b80 [17659.595082] ffff8801a50efcc8 ffff8801a50f0000 00000000fffffffe ffff8801a50efd88 [17659.595086] 0000000000000000 0000000000000258 ffff8801a50efd08 ffffffff8156d2ae [17659.595090] Call Trace: [17659.595103] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17659.595115] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17659.595123] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17659.595131] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17659.595139] [<ffffffffa004dae5>] usb_start_wait_urb+0xe5/0x170 [usbcore] [17659.595145] [<ffffffff810dca6c>] ? del_timer_sync+0x4c/0x60 [17659.595153] [<ffffffffa004dfcd>] usb_bulk_msg+0xbd/0x160 [usbcore] [17659.595159] [<ffffffffa00a4303>] rtsx_usb_send_cmd+0x63/0x90 [rtsx_usb] [17659.595163] [<ffffffffa00a492c>] rtsx_usb_read_register+0x6c/0xc0 [rtsx_usb] [17659.595169] [<ffffffffa04bf3ab>] rtsx_usb_detect_ms_card+0x6b/0x100 [rtsx_usb_ms] [17659.595174] [<ffffffffa04bf340>] ? ms_pull_ctl_enable_lqfp48+0x100/0x100 [rtsx_usb_ms] [17659.595180] [<ffffffff81092518>] kthread+0xd8/0xf0 [17659.595186] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17659.595190] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17659.595195] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17659.595230] INFO: task kworker/0:3:11105 blocked for more than 120 seconds. [17659.595233] Not tainted 4.2.1-1-ARCH #1 [17659.595235] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17659.595237] kworker/0:3 D ffff8801af215200 0 11105 2 0x00000000 [17659.595249] Workqueue: usb_hub_wq hub_event [usbcore] [17659.595251] ffff8801a4e739f8 0000000000000046 ffffffff81812500 ffff880098fd5280 [17659.595255] ffff8801a4e739d8 ffff8801a4e74000 ffff8800c47e7210 ffff8801a76036c0 [17659.595259] ffff8801a6657408 ffff8800c47e71f0 ffff8801a4e73a18 ffffffff8156d2ae [17659.595263] Call Trace: [17659.595268] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17659.595275] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17659.595280] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17659.595287] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17659.595295] [<ffffffffa004c214>] usb_hcd_flush_endpoint+0xa4/0x160 [usbcore] [17659.595299] [<ffffffff812459a9>] ? kernfs_put+0xf9/0x1a0 [17659.595307] [<ffffffffa004f083>] usb_disable_endpoint+0xa3/0xb0 [usbcore] [17659.595314] [<ffffffffa004f0d5>] usb_disable_interface+0x45/0x60 [usbcore] [17659.595322] [<ffffffffa0051a6c>] usb_unbind_interface+0x1cc/0x270 [usbcore] [17659.595327] [<ffffffff813de783>] ? rpm_idle+0x23/0x260 [17659.595334] [<ffffffff813d4011>] __device_release_driver+0xa1/0x150 [17659.595339] [<ffffffff813d40e3>] device_release_driver+0x23/0x30 [17659.595344] [<ffffffff813d3745>] bus_remove_device+0x105/0x180 [17659.595348] [<ffffffff813cfc19>] device_del+0x139/0x260 [17659.595356] [<ffffffffa004f179>] usb_disable_device+0x89/0x270 [usbcore] [17659.595363] [<ffffffffa0044d92>] usb_disconnect+0x92/0x2b0 [usbcore] [17659.595370] [<ffffffffa0046f7d>] hub_event+0x73d/0x1530 [usbcore] [17659.595376] [<ffffffff8108c57b>] process_one_work+0x14b/0x440 [17659.595381] [<ffffffff8108c8b8>] worker_thread+0x48/0x4a0 [17659.595385] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17659.595390] [<ffffffff81092518>] kthread+0xd8/0xf0 [17659.595395] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17659.595399] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17659.595403] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17659.595408] INFO: task kworker/u8:3:11805 blocked for more than 120 seconds. [17659.595410] Not tainted 4.2.1-1-ARCH #1 [17659.595412] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17659.595414] kworker/u8:3 D ffff8801af215200 0 11805 2 0x00000000 [17659.595425] Workqueue: kmmcd mmc_rescan [mmc_core] [17659.595427] ffff88009ab5bcc8 0000000000000046 ffffffff81812500 ffff88017e1a0dc0 [17659.595431] 0355002501e60004 ffff88009ab5c000 ffff8800c469ef0c ffff88017e1a0dc0 [17659.595435] 00000000ffffffff ffff8800c469ef10 ffff88009ab5bce8 ffffffff8156d2ae [17659.595439] Call Trace: [17659.595443] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17659.595448] [<ffffffff8156d695>] schedule_preempt_disabled+0x15/0x20 [17659.595452] [<ffffffff8156eaba>] __mutex_lock_slowpath+0xca/0x140 [17659.595457] [<ffffffff8156eb4b>] mutex_lock+0x1b/0x30 [17659.595463] [<ffffffffa0154df9>] sdmmc_get_cd+0x49/0xb0 [rtsx_usb_sdmmc] [17659.595469] [<ffffffffa020b996>] mmc_rescan+0x1f6/0x310 [mmc_core] [17659.595473] [<ffffffff8108c57b>] process_one_work+0x14b/0x440 [17659.595478] [<ffffffff8108c8b8>] worker_thread+0x48/0x4a0 [17659.595482] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17659.595485] [<ffffffff8108c870>] ? process_one_work+0x440/0x440 [17659.595490] [<ffffffff81092518>] kthread+0xd8/0xf0 [17659.595495] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17659.595498] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17659.595503] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17779.727139] INFO: task rtsx_usb_ms_1:461 blocked for more than 120 seconds. [17779.727145] Not tainted 4.2.1-1-ARCH #1 [17779.727147] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [17779.727148] rtsx_usb_ms_1 D ffff8801af295200 0 461 2 0x00000000 [17779.727154] ffff8801a50efce8 0000000000000046 ffff8801a79f9b80 ffff8801a66b9b80 [17779.727158] ffff8801a50efcc8 ffff8801a50f0000 00000000fffffffe ffff8801a50efd88 [17779.727161] 0000000000000000 0000000000000258 ffff8801a50efd08 ffffffff8156d2ae [17779.727164] Call Trace: [17779.727172] [<ffffffff8156d2ae>] schedule+0x3e/0x90 [17779.727181] [<ffffffffa004d563>] usb_kill_urb.part.4+0x53/0xa0 [usbcore] [17779.727186] [<ffffffff810b4c20>] ? wake_atomic_t_function+0x60/0x60 [17779.727192] [<ffffffffa004d5d1>] usb_kill_urb+0x21/0x30 [usbcore] [17779.727197] [<ffffffffa004dae5>] usb_start_wait_urb+0xe5/0x170 [usbcore] [17779.727201] [<ffffffff810dca6c>] ? del_timer_sync+0x4c/0x60 [17779.727207] [<ffffffffa004dfcd>] usb_bulk_msg+0xbd/0x160 [usbcore] [17779.727211] [<ffffffffa00a4303>] rtsx_usb_send_cmd+0x63/0x90 [rtsx_usb] [17779.727214] [<ffffffffa00a492c>] rtsx_usb_read_register+0x6c/0xc0 [rtsx_usb] [17779.727218] [<ffffffffa04bf3ab>] rtsx_usb_detect_ms_card+0x6b/0x100 [rtsx_usb_ms] [17779.727221] [<ffffffffa04bf340>] ? ms_pull_ctl_enable_lqfp48+0x100/0x100 [rtsx_usb_ms] [17779.727225] [<ffffffff81092518>] kthread+0xd8/0xf0 [17779.727230] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [17779.727233] [<ffffffff815710df>] ret_from_fork+0x3f/0x70 [17779.727236] [<ffffffff81092440>] ? kthread_worker_fn+0x170/0x170 [marcus@goetterdaemmerung ~]$ -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html