[Bug 88012] [bisected BYT] complete freeze after: drm/i915/vlv: WA for Turbo and RC6 to work together

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=88012

--- Comment #118 from John <jbmacbrodie at yahoo.com> ---
(In reply to John from comment #117)
> I've been running several days without a freeze on my 4.2.6...<snip>.. 
>
Update:  I found info suggesting cstate limits of 0,1 & 6(default) are valid,
maybe 3, but probably not 2.  

I had to boot my CHI into the OEM.  When I resumed linux, I omitted the cstate
kernel argument, as a sanity check.  My 4.2.6 froze within 5 minutes (browsing
internet eagle cam).  Otherwise, still no freezes when I set
intel_idle.max_cstate=1.  (~10 days so far)  

It looks like I can reproduce one type of freeze readily, so if y'all have
[baytrail cstate management] 4.2.x patches to beta test, let me know. I can
also test 4.1.1x or 4.3.x patches but those freeze rates are less "dependable."
 I won't test 4.4-rcx until wifi (or USB wifi dongle) starts working again in
the stock kernel.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20151130/65ad65e8/attachment.html>