On Wed, Feb 10, 2016 at 07:13:38PM +0200, Mathias Nyman wrote: > > Most likely xhci is messed up after two device slots are in default state at > the same time. > This happens when both threads are in hub_port_init() have called > hub_port_reset() > > The issue becomes visible when the the descriptor read and set address both > fail after > the port resets. > > xhci specs 4.5.3 has one tiny note about this: > "Note: Software shall not transition more than one Device Slot to the Default > State at a time" > > So to me, and from xhci pov this patch looks like the correct solution, > but I might be missing some usb core side details. > > -Mathias >
Just following up to see if this patch disappeared into the void?