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[Bug 1037465] i915: Unclaimed register detected before writing to register
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Thu, 04 May 2017 16:01:41 +0000
  • Message-id: <bug-1037465-21960-aVRXBohZFM@http.bugzilla.suse.com/>
http://bugzilla.suse.com/show_bug.cgi?id=1037465
http://bugzilla.suse.com/show_bug.cgi?id=1037465#c2

--- Comment #2 from Adam Spiers <aspiers@xxxxxxxx> ---
Created attachment 723859
--> http://bugzilla.suse.com/attachment.cgi?id=723859&action=edit
output of hwinfo --all

Machine is a Dell Latitude E7450 laptop.

I'm happy to try older kernels to see if it's a regression. Are there any in
particular I should target? However I have a conference starting on Monday
which requires preparation, so I'll need a stable machine until at least next
Thursday. But I'll try experimenting with older kernels after then.

BTW, based on the possible upstream bug, yesterday I booted with the suggested
workaround of intel_idle.max_cstate=1 and although it did not stop the stack
trace from reappearing, the machine has not yet crashed since the boot. This
is far from conclusive though - maybe I just got lucky so far.

Thanks a lot!

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