usb 6-1: string descriptor 0 read error: -71 comedi comedi0: Wrong number of endpoints ni6501 6-1:254.3: driver 'ni6501' failed to auto-configure device. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 6063 Comm: kworker/0:6 Not tainted 5.1.0-rc3+ #7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: dump_stack+0xca/0x13e register_lock_class+0x11ae/0x1240 __lock_acquire+0xfb/0x37c0 lock_acquire+0x100/0x2b0 __mutex_lock+0xf9/0x12b0 ni6501_detach+0x56/0x110 comedi_device_detach+0xe8/0x800 comedi_device_cleanup.part.0+0x63/0x140 comedi_free_board_dev.part.0+0x11/0x90 comedi_release_hardware_device+0x10c/0x140 comedi_auto_config.cold+0x124/0x1b0 usb_probe_interface+0x30d/0x7b0 really_probe+0x296/0x680 driver_probe_device+0xf9/0x200 __device_attach_driver+0x1c4/0x230 bus_for_each_drv+0x15e/0x1e0 __device_attach+0x21e/0x360 bus_probe_device+0x1ec/0x2a0 device_add+0xaf4/0x1700 usb_set_configuration+0xdf2/0x1670 generic_probe+0x9d/0xd5 usb_probe_device+0xa8/0x110 really_probe+0x296/0x680 driver_probe_device+0xf9/0x200 __device_attach_driver+0x1c4/0x230 bus_for_each_drv+0x15e/0x1e0 __device_attach+0x21e/0x360 bus_probe_device+0x1ec/0x2a0 device_add+0xaf4/0x1700 usb_new_device.cold+0x8b8/0x1030 hub_event+0x1ac9/0x35a0 process_one_work+0x90a/0x1580 worker_thread+0x96/0xe20 kthread+0x30e/0x420 ret_from_fork+0x3a/0x50 dummy_hcd dummy_hcd.5: port status 0x00010101 has changes usb 6-1: USB disconnect, device number 23 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 24 using dummy_hcd dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 25 using dummy_hcd dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 usb usb6-port1: attempt power cycle dummy_hcd dummy_hcd.5: power-off dummy_hcd dummy_hcd.5: port status 0x00010101 has changes dummy_hcd dummy_hcd.5: port status 0x00010111 has changes dummy_hcd dummy_hcd.5: port status 0x00110303 has changes dummy_hcd dummy_hcd.5: port status 0x00100303 has changes dummy_hcd dummy_hcd.5: port status 0x00100111 has changes dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 26 using dummy_hcd usb 6-1: Invalid ep0 maxpacket: 0 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 27 using dummy_hcd usb 6-1: Invalid ep0 maxpacket: 0 usb usb6-port1: unable to enumerate USB device usb usb6: dummy_bus_suspend dummy_hcd dummy_hcd.3: port status 0x00010100 has changes usb 4-1: USB disconnect, device number 26 dummy_hcd dummy_hcd.3: port status 0x00010101 has changes dummy_hcd dummy_hcd.3: port status 0x00100503 has changes usb 4-1: new high-speed USB device number 27 using dummy_hcd dummy_hcd dummy_hcd.3: port status 0x00100503 has changes usb 4-1: config 0 has an invalid interface number: 250 but max is 0 usb 4-1: config 0 has no interface number 0 usb 4-1: New USB device found, idVendor=05ac, idProduct=1290, bcdDevice=64.b3 usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 4-1: config 0 descriptor?? ipheth 4-1:0.250: Unable to find alternate settings interface usb usb6: dummy_bus_resume dummy_hcd dummy_hcd.5: port status 0x00010100 has changes usb usb6: dummy_bus_suspend dummy_hcd dummy_hcd.5: port status 0x00010101 has changes usb usb6: dummy_bus_resume dummy_hcd dummy_hcd.5: port status 0x00010101 has changes dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 28 using dummy_hcd dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 29 using dummy_hcd dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: device descriptor read/64, error 18 usb usb6-port1: attempt power cycle dummy_hcd dummy_hcd.5: power-off dummy_hcd dummy_hcd.5: port status 0x00010101 has changes dummy_hcd dummy_hcd.5: port status 0x00010111 has changes dummy_hcd dummy_hcd.5: port status 0x00110303 has changes dummy_hcd dummy_hcd.5: port status 0x00100303 has changes dummy_hcd dummy_hcd.5: port status 0x00100111 has changes dummy_hcd dummy_hcd.5: port status 0x00110303 has changes dummy_hcd dummy_hcd.5: port status 0x00100303 has changes dummy_hcd dummy_hcd.5: port status 0x00100111 has changes dummy_hcd dummy_hcd.5: port status 0x00100303 has changes usb 6-1: new low-speed USB device number 30 using dummy_hcd