Ubuntu

Comment 2 for bug 851472

StacktraceTop:
 _XFreeEventCookies (dpy=0x855810) at ../../src/XlibInt.c:780
 XNextEvent (dpy=0x855810, event=0x7fffa408d510) at ../../src/NextEvent.c:47
 PrivateScreen::processEvents (this=0x8404a0) at /build/buildd/compiz-0.9.5.94+bzr2803/src/screen.cpp:636
 callback (this=<optimized out>) at /build/buildd/compiz-0.9.5.94+bzr2803/src/eventsource.cpp:71
 CompEventSource::callback (this=<optimized out>) at /build/buildd/compiz-0.9.5.94+bzr2803/src/eventsource.cpp:63