Program received signal SIGSEGV, Segmentation fault.
0xb75b2b29 in pixman_image_set_has_client_clip () from /usr/lib/libpixman-1.so.0
(gdb) bt f
#0  0xb75b2b29 in pixman_image_set_has_client_clip () from /usr/lib/libpixman-1.so.0
No symbol table info available.
#1  0xb7155a58 in create_bits_picture (pict=0xa4cabc0, has_clip=1, xoff=0xbfac087c, yoff=0xbfac0878)
    at fbpict.c:317
        bits = <value optimized out>
        image = 0x0
        pixmap = <value optimized out>
        stride = <value optimized out>
        bpp = <value optimized out>
#2  image_from_pict (pict=0xa4cabc0, has_clip=1, xoff=0xbfac087c, yoff=0xbfac0878) at fbpict.c:434
        image = 0x0
#3  0xb7155c51 in fbComposite (op=1 '\001', pSrc=0xa4caa90, pMask=0x0, pDst=0xa4cabc0, xSrc=0, ySrc=0, 
    xMask=0, yMask=0, xDst=2, yDst=25, width=658, height=438) at fbpict.c:171
        src = <value optimized out>
        mask = 0x0
        dest = <value optimized out>
#4  0x08100ee3 in damageComposite (op=1 '\001', pSrc=0xa4caa90, pMask=0x0, pDst=0xa4cabc0, xSrc=0, ySrc=0, 
    xMask=0, yMask=0, xDst=2, yDst=25, width=658, height=438) at damage.c:643
        ps = 0xa1fb238
        pScrPriv = 0xa1fc0a0
#5  0x080fdae0 in CompositePicture (op=<value optimized out>, pSrc=0xa4caa90, pMask=0x0, pDst=0xa4cabc0, 
    xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=2, yDst=25, width=658, height=438) at picture.c:1714
        ps = 0xa1fb238
#6  0x080d4542 in compWindowUpdateAutomatic (pWin=0xa4bc8b0) at compwindow.c:757
        pRegion = 0xa4a7010
        pSrcPicture = 0xa4caa90
        pDstPicture = 0xa4cabc0
        pParent = <value optimized out>
        subwindowMode = 1
        cw = <value optimized out>
        pScreen = <value optimized out>
        pSrcPixmap = 0xb5adf008
        pSrcFormat = 0xa4caa90
        pDstFormat = 0xa201158
        error = 0
#7  compWindowUpdate (pWin=0xa4bc8b0) at compwindow.c:789
        cw = 0xa4bc938
        pChild = <value optimized out>
#8  0x080d4348 in compWindowUpdate (pWin=0xa477218) at compwindow.c:782
        pChild = 0xa4bc8b0
#9  0x080d4348 in compWindowUpdate (pWin=0xa21fa18) at compwindow.c:782
        pChild = 0xa477218
#10 0x080d483f in compScreenUpdate (i=0, blockData=0x0, pTimeout=0xbfac0e3c, pReadmask=0x81f6100)
    at compinit.c:144
        cs = <value optimized out>
#11 compBlockHandler (i=0, blockData=0x0, pTimeout=0xbfac0e3c, pReadmask=0x81f6100) at compinit.c:159
        pScreen = 0xa1fcad0
        cs = 0xa211078
#12 0x08072978 in BlockHandler (pTimeout=0xbfac0e3c, pReadmask=0x81f6100) at dixutils.c:369
        i = <value optimized out>
        j = <value optimized out>
#13 0x080a3acc in WaitForSomething (pClientsReady=0xa439a60) at WaitFor.c:216
---Type <return> to continue, or q <return> to quit---
        i = <value optimized out>
        waittime = {tv_sec = 111, tv_usec = 174000}
        wt = 0xbfac0e34
        timeout = <value optimized out>
        clientsReadable = {fds_bits = {0 <repeats 32 times>}}
        clientsWritable = {fds_bits = {172727776, -1079243432, 135045054, 26, -1079243320, 1, 1073741825, 
            171001784, 136189060, -1079243400, 135055007, 172727776, -1079243320, 1, 136189060, 169934920, 
            169933024, -1079243272, 134882582, 172727776, -1079243320, 1, 4096, 173031640, -1218169693, 
            -1218169630, 26, -1079243320, 136251844, 0, -1221097848, 172727776}}
        selecterr = <value optimized out>
        nready = <value optimized out>
        devicesReadable = {fds_bits = {169932976, -1079243528, 134689510, 136262184, 0, -1079243504, 
            136189060, 169934968, 169934944, -1079243496, 134689510, 136262192, 0, -1079243460, 136189060, 
            -1079243476, 2, -1079243464, 135156227, 136262184, -1079243504, -1079243432, 136189060, 
            172326624, -1079243464, 1, -1079243320, -1219603957, 0, 256, 136189060, 64}}
        now = <value optimized out>
        someReady = <value optimized out>
#14 0x0806df20 in Dispatch () at dispatch.c:375
        clientReady = 0xa439a60
        result = <value optimized out>
        client = <value optimized out>
        nready = <value optimized out>
        icheck = 0x81f53fc
        start_tick = <value optimized out>
#15 0x08062465 in main (argc=3, argv=0xbfac0fe4, envp=0xbfac0ff4) at main.c:286
        i = <value optimized out>
        alwaysCheckForInput = {0, 1}

(gdb) bt
#0  0xb75b2b29 in pixman_image_set_has_client_clip () from /usr/lib/libpixman-1.so.0
#1  0xb7155a58 in create_bits_picture (pict=0xa4cabc0, has_clip=1, xoff=0xbfac087c, yoff=0xbfac0878)
    at fbpict.c:317
#2  image_from_pict (pict=0xa4cabc0, has_clip=1, xoff=0xbfac087c, yoff=0xbfac0878) at fbpict.c:434
#3  0xb7155c51 in fbComposite (op=1 '\001', pSrc=0xa4caa90, pMask=0x0, pDst=0xa4cabc0, xSrc=0, ySrc=0, 
    xMask=0, yMask=0, xDst=2, yDst=25, width=658, height=438) at fbpict.c:171
#4  0x08100ee3 in damageComposite (op=1 '\001', pSrc=0xa4caa90, pMask=0x0, pDst=0xa4cabc0, xSrc=0, ySrc=0, 
    xMask=0, yMask=0, xDst=2, yDst=25, width=658, height=438) at damage.c:643
#5  0x080fdae0 in CompositePicture (op=<value optimized out>, pSrc=0xa4caa90, pMask=0x0, pDst=0xa4cabc0, 
    xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=2, yDst=25, width=658, height=438) at picture.c:1714
#6  0x080d4542 in compWindowUpdateAutomatic (pWin=0xa4bc8b0) at compwindow.c:757
#7  compWindowUpdate (pWin=0xa4bc8b0) at compwindow.c:789
#8  0x080d4348 in compWindowUpdate (pWin=0xa477218) at compwindow.c:782
#9  0x080d4348 in compWindowUpdate (pWin=0xa21fa18) at compwindow.c:782
#10 0x080d483f in compScreenUpdate (i=0, blockData=0x0, pTimeout=0xbfac0e3c, pReadmask=0x81f6100)
    at compinit.c:144
#11 compBlockHandler (i=0, blockData=0x0, pTimeout=0xbfac0e3c, pReadmask=0x81f6100) at compinit.c:159
#12 0x08072978 in BlockHandler (pTimeout=0xbfac0e3c, pReadmask=0x81f6100) at dixutils.c:369
#13 0x080a3acc in WaitForSomething (pClientsReady=0xa439a60) at WaitFor.c:216
#14 0x0806df20 in Dispatch () at dispatch.c:375
#15 0x08062465 in main (argc=3, argv=0xbfac0fe4, envp=0xbfac0ff4) at main.c:286