linux-kernel - Re: Kernel stability on baytrail machines

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Message-ID: <20160409160119.GA19362@xo-6d-61-c0.localdomain>
Date:	Sat, 9 Apr 2016 18:01:19 +0200
From:	Pavel Machek <pavel@....cz>
To:	Michal Feix <michal@...x.cz>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Kernel stability on baytrail machines

Hi!

> aprox. 6 months ago I started facing random freezes on my baytrail
> based computers I manage. It took me a while before I found a bug
> report in freedesktop bugzilla named "complete freeze after:
> drm/i915/vlv: WA for Turbo and RC6 to work together" -
> https://bugs.freedesktop.org/show_bug.cgi?id=88012. It took a few
> more months for this bug to escalate into MAJOR importance and was
> later moved into kernel bugzilla as "intel_idle.max_cstate=1
> required on baytrail to prevent crashes" -
> https://bugzilla.kernel.org/show_bug.cgi?id=109051.
> 
> Based on the ammount of comments in both bugtickets and probably
> connected observations on different linux distros forums, this seems
> to be a showstopper on mainstream Baytrail based machines for many
> users. I'm trying to understand, how visible (and thus important) is
> this instability across baytrail machines on linux kernel across
> population.
> 
> 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 :-).
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html