[Intel-gfx] Memory corruption on hibernate/thaw with KMS

[Daniel Vetter]

On Mon, Oct 10, 2011 at 13:23, Bojan Smojver <bojan at rexursive.com> wrote:
> On Mon, 2011-10-10 at 21:37 +1100, Bojan Smojver wrote:
>> Let me repeat my tests using nomodeset.
>
> I just repeated 67 hibernate/thaw cycles with nomodeset, which took
> almost an hour. I'm writing this e-mail from that thawed session. No
> trouble whatsoever.
>
> So, two conclusions:
>
> - the problem is in i915 KMS code
> - that patch does not fix it

Ok, we have a new idea. Can you boot your kernel with

memmap=2M#512M memmap=2M#1024M

added to your boot cmdline? Also please attach the full dmesg after
boot (only the boot messages matter) both with and without these
options.

Thanks, Daniel
-- 
Daniel Vetter
daniel.vetter at ffwll.ch - +41 (0) 79 364 57 48 - http://blog.ffwll.ch