Comment 4 for bug 484387

This is the backtrace from /var/log/Xorg.0.log.old

Backtrace:
0: /usr/bin/X(xorg_backtrace+0x3b) [0x8133d6b]
1: /usr/bin/X(xf86SigHandler+0x55) [0x80c7d35]
2: [0x662400]
3: /usr/lib/libpixman-1.so.0(pixman_fill+0x5c) [0x34e2ec]
4: /usr/lib/xorg/modules//libfb.so(fbFill+0x23d) [0x2d3c4d]
5: /usr/lib/xorg/modules//libfb.so(fbPolyFillRect+0x166) [0x2d4026]
6: /usr/lib/xorg/modules//libxaa.so [0x3b8eac]
7: /usr/bin/X [0x817fd65]
8: /usr/bin/X(miPaintWindow+0x1c2) [0x8114242]
9: /usr/bin/X(miWindowExposures+0xc7) [0x81145c7]
10: /usr/bin/X [0x80df9ab]
11: /usr/bin/X(miHandleValidateExposures+0x78) [0x812c388]
12: /usr/bin/X(MapWindow+0x21f) [0x8077a2f]
13: /usr/bin/X(ProcMapWindow+0x69) [0x808c8e9]
14: /usr/bin/X(Dispatch+0x35f) [0x808d17f]
15: /usr/bin/X(main+0x395) [0x8072515]
16: /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6) [0x6d6b56]
17: /usr/bin/X [0x80719c1]
Saw signal 11. Server aborting.