Re: Kernel stability on baytrail machines

From: Michal Feix
Date: Wed Jul 13 2016 - 06:11:29 EST


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?
Yes, it does.
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.
It's not X-only problem. Happens even in console mode, which is KMS switched during boot though.
...actually... you may want to verify if it happens in unaccelerated X.
As it happens even in console mode, is this relevant test?

Michal