[Bug 91295] System hangs on resume because of Intel Rapid Start Technology

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91295

--- Comment #2 from Gabriele Mazzotta <gabriele.mzt at gmail.com> ---
Hi,

I ran a bisection and found the culprit:

commit 149c86e74fe44dcbac5e9f8d145c5fbc5dc21261
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Apr 7 16:21:11 2015 +0100

    drm/i915: Allocate context objects from stolen

    As we never expose context objects directly to userspace, we can forgo
    allocating a first-class GEM object for them and prefer to use the
    limited resource of reserved/stolen memory for them. Note this means
    that their initial contents are undefined.

    However, a downside of using stolen objects for execlists is that we
    cannot access the physical address directly (thanks MCH!) which prevents
    their use.

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>


I also built 4.2-rc1 with that commit reverted and everything works as
expected.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20150712/278757be/attachment.html>