On 21/07/17(Fri) 10:45, Paul Irofti wrote: > On Fri, Jul 21, 2017 at 10:45:01AM +0300, p...@irofti.net wrote: > > >Synopsis: Booting OpenBSD with external keyboard randomly panics in xhci > > >Category: kernel > > >Environment: > > System : OpenBSD 6.1 > > Details : OpenBSD 6.1-current (GENERIC.MP) #6: Fri Jul 21 10:29:44 > > EEST 2017 > > > > bulib...@sci.irofti.net:/usr/src/sys/arch/amd64/compile/GENERIC.MP > > > > Architecture: OpenBSD.amd64 > > Machine : amd64 > > >Description: > > Not that often my laptop panics on boot when using an external keyboard > > and mouse that are hooked up via an USB hub provided by the external > > monitor. > > Forgot to post the trace and ps: http://irofti.net/tmp/x250/xhci/
This problem is due to two bugs. - First the device babble, see 'XHCI_CODE_BABBLE'. This seems to happen to much with our xhci(4) and I believe it is a symptom for wrongly setup TRBs. - Secondly the code resetting the endpoint xhci_cmd_reset_ep_async() assumes interrupt are working. However during boot the USB stack works in polling mode. Fixing any of the two bugs should solve your issue.
