linux-kernel - Re: Kernel stability on baytrail machines

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Date:	Tue, 12 Jul 2016 23:24:48 +0200
From:	Pavel Machek <pavel@....cz>
To:	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Cc:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>,
	Michal Feix <michal@...x.cz>, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	intel-gfx@...ts.freedesktop.org
Subject: Re: Kernel stability on baytrail machines

On Tue 2016-07-12 16:41:58, Ezequiel Garcia wrote:
> Hi Alan,
> 
> (Adding interested people to this thread)
> 
> On 09 Apr 08:14 PM, One Thousand Gnomes wrote:
> > > > I do feel that the importance of the mentioned bug is currently
> > > > underestimated. Can anyone here give a note, how much current linux
> > > > kernel is supposed to be stable on general baytrail machines?  
> > > 
> > > If you did not get any replies... you might want to check MAINTAINERS file, and
> > > put Intel x86 maintainers on Cc list.
> > > 
> > > I'm sure someone cares :-).
> > 
> > Yes we care, and there are people looking at the various reports.
> > 
> 
> Are there any updates on the status of this issue?
> 
> The current bugzilla report [1] marks this as a power management
> issue. However, many reports indicate that it would only freeze
> when running X, so it's not completely clear if it's related to
> the gfx driver too.

Does

"intel_idle.max_cstate=1"

fix it for you?

If you feel it is X-only problem, you may want to provide details
about your graphics subsystem (DRM enabled? framebuffer only?) and
probably cc.

...actually... you may want to verify if it happens in unaccelerated X.

INTEL DRM DRIVERS (excluding Poulsbo, Moorestown and derivative
chipsets)
M:      Daniel Vetter <daniel.vetter@...el.com>
M:      Jani Nikula <jani.nikula@...ux.intel.com>
L:      intel-gfx@...ts.freedesktop.org
L:      dri-devel@...ts.freedesktop.org
W:      https://01.org/linuxgraphics/
Q:      http://patchwork.freedesktop.org/project/intel-gfx/
T:      git git://anongit.freedesktop.org/drm-intel
S:      Supported
F:      drivers/gpu/drm/i915/
F:      include/drm/i915*
F:      include/uapi/drm/i915_drm.h

Best regards,
									Pavel

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html