.
Thread 1 (process 12479):
#0  0xb788a6a7 in intel_renderbuffer_set_region ()
   from /usr/lib/dri/i915_dri.so
#1  0xb7862f7e in ?? () from /usr/lib/dri/i915_dri.so
#2  0xb78371d7 in ?? () from /usr/lib/dri/i915_dri.so
#3  0xb7e3ba79 in ?? () from /usr/lib/libGL.so.1
#4  0xb7e16853 in glXDestroyGLXPixmap () from /usr/lib/libGL.so.1
#5  0x08053797 in releasePixmapFromTexture ()
#6  0x0805405c in finiTexture ()
#7  0x080540ac in destroyTexture ()
#8  0x0806522e in releaseWindow ()
#9  0x08067409 in unmapWindow ()
#10 0xb47a9200 in ?? () from /usr/lib/compiz/libanimation.so
#11 0xb47a942f in postAnimationCleanup () from /usr/lib/compiz/libanimation.so
#12 0xb47ac2dd in ?? () from /usr/lib/compiz/libanimation.so
#13 0xb479969b in ?? () from /usr/lib/compiz/libexpo.so
#14 0xb4717673 in ?? () from /usr/lib/compiz/libthumbnail.so
#15 0xb470d2b0 in ?? () from /usr/lib/compiz/librotate.so
#16 0xb47054d4 in ?? () from /usr/lib/compiz/libezoom.so
#17 0xb46fa590 in ?? () from /usr/lib/compiz/libresizeinfo.so
#18 0xb46f0cb8 in ?? () from /usr/lib/compiz/libscale.so
#19 0xb46deb87 in ?? () from /usr/lib/compiz/libswitcher.so
#20 0x0805844b in eventLoop ()
#21 0x08052b14 in main ()