svn commit: r277487 - in head/sys: dev/drm2 dev/drm2/i915 dev/drm2/radeon modules/drm2/i915kms

[Gleb Kurtsou]

On (22/01/2015 12:15), Ivan Klymenko wrote:
> В Thu, 22 Jan 2015 11:18:37 +0300
> "Max N. Boyarov" <zotrix at bsd.by> пишет:
> 
> > On Wed, Jan 21, 2015 at 7:10 PM, Konstantin Belousov
> > <kib at freebsd.org> wrote:
> > > Author: kib
> > > Date: Wed Jan 21 16:10:37 2015
> > > New Revision: 277487
> > > URL: https://svnweb.freebsd.org/changeset/base/277487
> > >
> > > Log:
> > >   An update for the i915 GPU driver, which brings the code up to
> > > Linux commit 4d93914ae3db4a897ead4b.  Some related drm
> > > infrastructure changes are imported as needed.
> > >
> > >   Biggest update is the rewrite of the i915 gem io to more closely
> > >   follow Linux model, althought the mechanism used by FreeBSD port
> > > is different.
> > >
> > >   Sponsored by: The FreeBSD Foundation
> > >   MFC after:    2 month
> > 
> > Hi, after this commit i have many error messages like:
> > 
> > error: [drm:pid1121:gen6_sanitize_pm] *ERROR* Power management
> > discrepancy: GEN6_RP_INTERRUPT_LIMITS expected 18070000, was 18000000

I'm seeing the same errors. I've also noticed that my laptop started to
overheat (up to 96 C). It was mostly idle, cpu usage at few percent,
freq lowered by powerd, nothing cpu intensive running, web browser,
terminals, etc.

My initial suspect was recent TSC changes regarding C2/C3 sleep states.
But reverting this commit seems to get situation back to normal.
Did anybody else experience similar issues?