Re: xhci hang on boot

["Gary Duzan" <gary%duzan.org@localhost>]

In Message <5280EDDD.5020502%netbsd.org@localhost>,
   Nick Hudson <skrll%netbsd.org@localhost>wrote:

=>On 11/11/13 14:25, Gary Duzan wrote:
=>>     As has been mentioned earlier, the xhci driver causes the boot
=>> process to hang on some machines, including mine. However, it turns
=>> out that a single keystroke on the PS/2 keyboard (the USB one had
=>> not been probed yet) allowed the boot to continue, and I successfully
=>> accessed a USB2 flash drive connected to one of my USB3 ports. I'm
=>> guessing then that there is an interrupt being lost somewhere, or
=>> perhaps a missing timeout. The hang was occurring shortly after
=>> attaching uhub0, as indicated in the dmesg.boot below, and you can
=>> see the umass0 device attaching to it afterwards.
=>>
=>I guess it's not talking to the legacy USB BIOS stuff properly.
=>
=>A quick glance at the code seems to confirm this.

   I didn't know if it was what you were referring to, but just in
case I disabled USB Legacy support in the BIOS, but it didn't help.
From that I conclude that it wasn't what you were talking about,
but there it is.

   Thanks.

                                Gary Duzan