Program received signal SIGSEGV, Segmentation fault. dri2InvalidateBuffers (dpy=0x804b008, drawable=65011714) at dri2_glx.c:656 656 int eventBase, errorBase; Missing separate debuginfos, use: debuginfo-install expat-2.0.1-10.fc13.i686 glew-1.5.2-2.fc13.i686 glibc-2.12-1.i686 libXdamage-1.1.2-2.fc13.i686 libXdmcp-1.0.3-3.fc13.i686 libXfixes-4.0.4-2.fc13.i686 libXxf86vm-1.1.0-1.fc13.i686 libgcc-4.4.4-2.fc13.i686 libstdc++-4.4.4-2.fc13.i686 libtalloc-2.0.1-1.fc13.i686 (gdb) bt #0 dri2InvalidateBuffers (dpy=0x804b008, drawable=65011714) at dri2_glx.c:656 #1 0xb7f5793c in DRI2WireToEvent (dpy=0x804b008, event=0x8394b94, wire=0x808e938) at dri2.c:139 #2 0xb7e29760 in _XEnq (dpy=0x804b008, event=0x808e938) at XlibInt.c:905 #3 0xb7e270c4 in handle_response (dpy=0x804b008, response=0x808e938, in_XReply=0) at xcb_io.c:280 #4 0xb7e27b62 in _XReadEvents (dpy=0x804b008) at xcb_io.c:359 #5 0xb7e15d28 in XNextEvent (dpy=0x804b008, event=0xbffff330) at NextEvent.c:50 #6 0x080491ec in event_loop (argc=2, argv=0xbffff494) at glxsnoop.c:218 #7 main (argc=2, argv=0xbffff494) at glxsnoop.c:374