I'm unable to use 8 of the 10 USB devices I have on a motherboard. Two
USB 3.0 ports work, and all of the devices, if plugged into a hub, can
be recognized and used if plugged through those 2 ports. However, the
other ports are completely unresponsive.

Thoughts/Ideas? The broken drivers are ehci-pci. xhci-hcd works on the
usb 3.0 ports, but for 2 other usb 3.0 ports it does not work.

 The machine is being netbooted and running kernel 3.19-49-lowlatency
(i've tried with generic as well). This same identical setup running
off of a hard disk boot does not have this problem for any USB ports.
Im lead to believe there may be a bug in the ehci-pci driver while
using netboot.


Thank you. Devon
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