Open Radar

 
Summary:
Since upgrading from 10.11.3 to the 10.11.4 Beta 2 (15E33e), attached USB storage devices fail to start or subsequently mount.

Steps to Reproduce:
1. Connect a USB storage device.
2. Open Console and look at All Messages.

Expected Results:
Device would start and then its volumes would be attempted to be mounted.

Actual Results:
No volumes are mounted, no devices are shown in System Profiler under the USB section.

I see messages like this when attaching a USB external HD:

2016-01-27 9:16:02.000 AM kernel[0]: 000539.531373 SSP4@14800000: AppleUSB30XHCIPort::resetAndCreateDevice: failed to create device after (1) tries, disabling port
2016-01-27 9:16:06.000 AM kernel[0]: 000543.338876 IOUSBHostDevice@14800000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:16:06.000 AM kernel[0]: 000543.338985 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device
2016-01-27 9:16:06.000 AM kernel[0]: 000543.338993 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to create device (0xe00002e9)
2016-01-27 9:16:06.000 AM kernel[0]: 000543.464124 IOUSBHostDevice@14800000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:16:06.000 AM kernel[0]: 000543.464305 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device
2016-01-27 9:16:06.000 AM kernel[0]: 000543.464313 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to create device (0xe00002e9)
2016-01-27 9:16:06.000 AM kernel[0]: 000543.590355 IOUSBHostDevice@14800000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:16:06.000 AM kernel[0]: 000543.590442 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device
2016-01-27 9:16:06.000 AM kernel[0]: 000543.590450 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to create device (0xe00002e9)
2016-01-27 9:16:06.000 AM kernel[0]: 000543.716338 IOUSBHostDevice@14800000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:16:06.000 AM kernel[0]: 000543.716425 SSP4@14800000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device


And the messages are slightly different with the USB stick (which is 3.0, despite the mention of 2.0 in the messages):

2016-01-27 9:20:44.000 AM kernel[0]: 000821.099324 IOUSBHostDevice@14a00000: IOUSBHostDevice::getDescriptorGated: compliance violation: USB 2.0 9.3.5: device returned more than wLength data
2016-01-27 9:20:44.000 AM kernel[0]: 000821.099583 IOUSBHostDevice@14a00000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:20:44.000 AM kernel[0]: 000821.099674 SSP6@14a00000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device
2016-01-27 9:20:44.000 AM kernel[0]: 000821.099683 SSP6@14a00000: AppleUSBXHCIPort::resetAndCreateDevice: failed to create device (0xe00002e9)
2016-01-27 9:20:44.000 AM kernel[0]: 000821.234098 IOUSBHostDevice@14a00000: IOUSBHostDevice::getDescriptorGated: compliance violation: USB 2.0 9.3.5: device returned more than wLength data
2016-01-27 9:20:44.000 AM kernel[0]: 000821.234410 IOUSBHostDevice@14a00000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:20:44.000 AM kernel[0]: 000821.234527 SSP6@14a00000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device
2016-01-27 9:20:44.000 AM kernel[0]: 000821.234536 SSP6@14a00000: AppleUSBXHCIPort::resetAndCreateDevice: failed to create device (0xe00002e9)
2016-01-27 9:20:44.000 AM kernel[0]: 000821.351776 IOUSBHostDevice@14a00000: IOUSBHostDevice::getDescriptorGated: compliance violation: USB 2.0 9.3.5: device returned more than wLength data
2016-01-27 9:20:44.000 AM kernel[0]: 000821.352091 IOUSBHostDevice@14a00000: IOUSBHostDevice::start: failed to get device descriptor
2016-01-27 9:20:44.000 AM kernel[0]: 000821.352182 SSP6@14a00000: AppleUSBXHCIPort::resetAndCreateDevice: failed to start device
2016-01-27 9:20:44.000 AM kernel[0]: 000821.352190 SSP6@14a00000: AppleUSBXHCIPort::resetAndCreateDevice: failed to create device (0xe00002e9)


Regression:
I did not try the first 10.11.4 beta, but I did not experience any issues like this on 10.11.3.

Notes:
Both devices are USB 3.0 and USB powered - one is an external HDD and the other is a Sandisk Extreme USB stick. Other connected USB devices I have which are functioning: iPod Touch 5G, wired Apple mouse.