drm2, i915kms cause instant lock-up

Steve Kargl sgk at troutmask.apl.washington.edu
Tue Feb 21 18:55:13 UTC 2017


On Mon, Feb 20, 2017 at 09:26:58PM -0800, Steve Kargl wrote:
> 
> Well, the good news seems to be that r313254 and older are 'ok'.
> So, something between r313943 and r313254 is triggering a the
> problem.  I'm still bisecting, but it might take a day or two.
> 

I've been able to narrow the range down to r313854 to r313943.
If I had to guess, the issue may be related to 

Author: kib
Date: Fri Feb 17 21:08:32 2017
New Revision: 313898
URL: https://svnweb.freebsd.org/changeset/base/313898

Log:
  Merge i386 and amd64 mtrr drivers.

I won't be able to investigate until later tonight (~ 10 hours from now).

-- 
Steve
20161221 https://www.youtube.com/watch?v=IbCHE-hONow


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