Comment 7 for bug 241145

I managed to get a somewhat meaningful backtrace of the crash. Here you are:
#0 0xb7ef9410 in __kernel_vsyscall ()
#1 0xb7d1a791 in raise () from /lib/i686/cmov/libc.so.6
#2 0xb7d1c008 in abort () from /lib/i686/cmov/libc.so.6
#3 0x080a0be6 in ddxGiveUp () at ../../../../hw/xfree86/common/xf86Init.c:1234
#4 0x081bdaa3 in AbortServer () at ../../os/log.c:407
#5 0x081bdfb7 in FatalError (
    f=0x81c8d7c "Caught signal %d. Server aborting\n") at ../../os/log.c:553
#6 0x080c20e7 in xf86SigHandler (signo=11)
    at ../../../../hw/xfree86/common/xf86Events.c:1460
#7 <signal handler called>
#8 0x08172b92 in cwGetBackingPicture (pPicture=0x879cb18, x_off=0xbfc359c0,
    y_off=0xbfc359bc) at ../../../miext/cw/cw_render.c:129
#9 0x08172e4c in cwGlyphs (op=3 '\003', pSrcPicture=0x8bb84d8,
    pDstPicture=0x879cb18, maskFormat=0x8219728, xSrc=0, ySrc=0, nlists=1,
    lists=0xbfc35f08, glyphs=0xbfc35b08) at ../../../miext/cw/cw_render.c:297
#10 0x0816f325 in damageGlyphs (op=3 '\003', pSrc=0x8bb84d8, pDst=0x879cb18,
    maskFormat=0x8219728, xSrc=0, ySrc=0, nlist=1, list=0xbfc35f08,
    glyphs=0xbfc35b08) at ../../../miext/damage/damage.c:654
#11 0x0815588a in CompositeGlyphs (op=3 '\003', pSrc=0x8bb84d8,
    pDst=0x879cb18, maskFormat=0x8219728, xSrc=0, ySrc=0, nlist=1,
    lists=0xbfc35f08, glyphs=0xbfc35b08) at ../../render/picture.c:1824
#12 0x0815d468 in ProcRenderCompositeGlyphs (client=0x8515a08)
    at ../../render/render.c:1401
#13 0x08158915 in ProcRenderDispatch (client=0x0) at ../../render/render.c:1999
#14 0x0814bd0e in XaceCatchExtProc (client=0x8515a08) at ../../Xext/xace.c:299
#15 0x080883cb in Dispatch () at ../../dix/dispatch.c:457
#16 0x080701f9 in main (argc=8, argv=0xbfc36784, envp=
Cannot access memory at address 0x8
) at ../../dix/main.c:477