[Bug 82340] [HSW Regression] Fail to resume from S4, causing system hang (once out of 5 test circles)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Wed Aug 13 02:00:41 PDT 2014


https://bugs.freedesktop.org/show_bug.cgi?id=82340

yaoming <ming.yao at intel.com> changed:

           What    |Removed                     |Added
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           Keywords|bisect_pending              |

--- Comment #6 from yaoming <ming.yao at intel.com> ---
==Bisect results==
----------------------------
Bisect shows: 
8ee661b505613ef2747b350ca2871a31b3781bee is the first bad commit

commit 8ee661b505613ef2747b350ca2871a31b3781bee
Author:     Daniel Vetter <daniel.vetter at ffwll.ch>
AuthorDate: Wed Mar 26 20:10:09 2014 +0100
Commit:     Dave Airlie <airlied at redhat.com>
CommitDate: Fri Mar 28 12:33:50 2014 +1000

    drm/i915: Undo gtt scratch pte unmapping again

    It apparently blows up on some machines. This functionally reverts

    commit 828c79087cec61eaf4c76bb32c222fbe35ac3930
    Author: Ben Widawsky <benjamin.widawsky at intel.com>
    Date:   Wed Oct 16 09:21:30 2013 -0700

        drm/i915: Disable GGTT PTEs on GEN6+ suspend

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64841
    Reported-and-Tested-by: Brad  Jackson <bjackson0971 at gmail.com>
    Cc: stable at vger.kernel.org
    Cc: Takashi Iwai <tiwai at suse.de>
    Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
    Cc: Todd Previte <tprevite at gmail.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
    Signed-off-by: Dave Airlie <airlied at redhat.com>

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