[Bug 91120] [HD Graphics 2000] [xf86-video-intel version 1:2.99.917+364+gb24e758-1] Crash inside intel_dri.so

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91120

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #8 from Chris Wilson <chris at chris-wilson.co.uk> ---
Ok, it makes sense. The important detail is that the Window is redirected and
dramatically changed shape and was clipped in between the GL client grabbing
its backbuffer and performing the swapbuffer.

commit 41f401ae27ee753d66aae341be60b27167bc5b62
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sat Jun 27 20:24:45 2015 +0100

    sna/dri2: Early return for empty DRI2CopyRegion

    It's possible if the Window is redirected whilst the client render for
    its backbuffer to no longer overlap with the visible Window. In this
    case, we attempt to copy an empty region, but it debugging is enabled
    this throws an assert.

    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91120
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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