https://bugs.freedesktop.org/show_bug.cgi?id=29370
--- Comment #5 from Kristian Høgsberg <k...@bitplanet.net> 2010-08-04 05:51:07
PDT ---
(In reply to comment #0)
> KWin crashes when trying to activate OpenGL desktop effects. I do not know if
> bug 29181 is related; could be.
>
> I'm on Mesa git master, kernel 2.6.35 using Radeon KMS, xorg-server 1.8.2,
> xf86-video-ati git master, Radeon HD4870.
>
> This is the backtrace:
>
> Application: KWin (kwin), signal: Segmentation fault
> [KCrash Handler]
> #6 dri2InvalidateBuffers (dpy=<value optimized out>, drawable=<value
> optimized
> out>) at dri2_glx.c:643
> #7 0x0000003008c5106d in dri2SwapBuffers (pdraw=<value optimized out>,
> target_msc=<value optimized out>, divisor=<value optimized out>,
> remainder=<value optimized out>) at dri2_glx.c:510
Ah, I see, this is the compatibility path for servers that don't send
invalidate events. When dri2SwapBuffers call dri2Invalidate handle it passes
the GLX drawable XID, but that's wrong, it should pass the X drawable XID. I
just committed:
commit 9da1c9da139327132dea57b18048a4eb386b6bad
Author: Kristian Høgsberg <k...@bitplanet.net>
Date: Wed Aug 4 08:43:08 2010 -0400
glx: dri2InvalidateBuffers() needs the X drawable XID not the GLX one
This never ceases to entertain.
to mesa master, please give it a try.
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