(gdb) handle SIGPIPE nostop
Signal        Stop      Print   Pass to program Description
SIGPIPE       No        Yes     Yes             Broken pipe
(gdb) c
Continuing.

Program received signal SIGSEGV, Segmentation fault.
exaPixmapHasGpuCopy (pPixmap=0x7f05032b7b80) at ../../exa/exa.c:249
249     ../../exa/exa.c: No such file or directory.
(gdb) bt
#0  exaPixmapHasGpuCopy (pPixmap=0x7f05032b7b80) at ../../exa/exa.c:249
#1  0x00007f04faaa12ed in exaPrepareAccessReg_mixed (pPixmap=0x7f05032b7b80, index=4, pReg=0x0) at ../../exa/exa_migration_mixed.c:168
#2  0x00007f04faaab8dd in ExaPrepareCompositeReg (height=64, width=64, yDst=0, xDst=0, yMask=<optimized out>, xMask=-5056, ySrc=<optimized out>, xSrc=<optimized out>, pDst=0x7f05032b7ea0, pMask=0x0, pSrc=0x7f05032b6df0, op=1 '\001', pScreen=<optimized out>) at ../../exa/exa_unaccel.c:561
#3  ExaCheckComposite (op=1 '\001', pSrc=0x7f05032b6df0, pMask=0x0, pDst=0x7f05032b7ea0, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=64, height=64) at ../../exa/exa_unaccel.c:624
#4  0x00007f04faaa80b8 in exaComposite (op=1 '\001', pSrc=0x7f05032b6df0, pMask=0x0, pDst=0x7f05032b7ea0, xSrc=<optimized out>, ySrc=<optimized out>, xMask=0, yMask=0, xDst=<optimized out>, yDst=<optimized out>, width=64, height=64) at ../../exa/exa_render.c:1066
#5  0x00007f0502baff34 in damageComposite (op=1 '\001', pSrc=0x7f05032b6df0, pMask=0x0, pDst=0x7f05032b7ea0, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=64, height=64) at ../../../miext/damage/damage.c:569
#6  0x00007f0502ba84c4 in ProcRenderComposite (client=0x7f05030fd530) at ../../render/render.c:728
#7  0x00007f0502ba5ff2 in PanoramiXRenderComposite (client=0x7f05030fd530) at ../../render/render.c:2867
#8  0x00007f0502aecf81 in Dispatch () at ../../dix/dispatch.c:439
#9  0x00007f0502adc1aa in main (argc=6, argv=<optimized out>, envp=<optimized out>) at ../../dix/main.c:287
(gdb) bt full
#0  exaPixmapHasGpuCopy (pPixmap=0x7f05032b7b80) at ../../exa/exa.c:249
        pScreen = 0x7f0502eec080
        pExaScr = 0x0
#1  0x00007f04faaa12ed in exaPrepareAccessReg_mixed (pPixmap=0x7f05032b7b80, index=4, pReg=0x0) at ../../exa/exa_migration_mixed.c:168
        pExaPixmap = 0x7f05032b7bd8
        has_gpu_copy = <optimized out>
        success = <optimized out>
#2  0x00007f04faaab8dd in ExaPrepareCompositeReg (height=64, width=64, yDst=0, xDst=0, yMask=<optimized out>, xMask=-5056, ySrc=<optimized out>, xSrc=<optimized out>, pDst=0x7f05032b7ea0, pMask=0x0, pSrc=0x7f05032b6df0, op=1 '\001', pScreen=<optimized out>) at ../../exa/exa_unaccel.c:561
        region = {extents = {x1 = 0, y1 = 0, x2 = 64, y2 = 64}, data = 0x0}
        srcReg = 0x7f0502f0ec40
        pSrcPix = 0x7f05032b2b00
        ret = 1
        dstReg = 0x0
        maskReg = 0x0
        pMaskPix = 0x0
        pDstPix = <optimized out>
        pExaScr = 0x7f0502f0e9c0
#3  ExaCheckComposite (op=1 '\001', pSrc=0x7f05032b6df0, pMask=0x0, pDst=0x7f05032b7ea0, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=64, height=64) at ../../exa/exa_unaccel.c:624
        pScreen = <optimized out>
        ps = 0x7f0502f0e640
        pExaScr = 0x7f0502f0e9c0
#4  0x00007f04faaa80b8 in exaComposite (op=1 '\001', pSrc=0x7f05032b6df0, pMask=0x0, pDst=0x7f05032b7ea0, xSrc=<optimized out>, ySrc=<optimized out>, xMask=0, yMask=0, xDst=<optimized out>, yDst=<optimized out>, width=64, height=64) at ../../exa/exa_render.c:1066
        pExaScr = 0x7fbf
        ret = <optimized out>
        saveSrcRepeat = 0
        saveMaskRepeat = 0
        region = {extents = {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, data = 0x7f0500b478d0}
#5  0x00007f0502baff34 in damageComposite (op=1 '\001', pSrc=0x7f05032b6df0, pMask=0x0, pDst=0x7f05032b7ea0, xSrc=0, ySrc=0, xMask=0, yMask=0, xDst=0, yDst=0, width=64, height=64) at ../../../miext/damage/damage.c:569
        pScreen = <optimized out>
        ps = 0x7f0502f0e640
        pScrPriv = 0x7f0502f0ee20
#6  0x00007f0502ba84c4 in ProcRenderComposite (client=0x7f05030fd530) at ../../render/render.c:728
        pSrc = 0x7f05032b6df0
        pMask = 0x0
        pDst = 0x7f05032b7ea0
        stuff = 0x7f05032baba8
#7  0x00007f0502ba5ff2 in PanoramiXRenderComposite (client=0x7f05030fd530) at ../../render/render.c:2867
        src = 0x7f05032b2bd0
        msk = 0x0
        dst = 0x7f05031beb80
        result = 0
        j = <optimized out>
        orig = {reqType = <optimized out>, renderReqType = <optimized out>, length = <optimized out>, op = <optimized out>, pad1 = <optimized out>, pad2 = <optimized out>, src = <optimized out>, mask = <optimized out>, dst = <optimized out>, xSrc = 0, ySrc = 0, xMask = 0, yMask = 0, xDst = 0, yDst = 0,
          width = <optimized out>, height = <optimized out>}
        stuff = 0x7f05032baba8
#8  0x00007f0502aecf81 in Dispatch () at ../../dix/dispatch.c:439
        clientReady = 0x7f05031095e0
        result = <optimized out>
        client = 0x7f05030fd530
        nready = 0
        icheck = 0x7f0502ea1ad0
        start_tick = 8020
#9  0x00007f0502adc1aa in main (argc=6, argv=<optimized out>, envp=<optimized out>) at ../../dix/main.c:287
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
(gdb)