#0  0x00000000004dc306 in damageRegionAppend (pDrawable=0x2087690, pRegion=0x7fff93f16870, clip=0, subWindowMode=<value optimized out>)
    at ../../../miext/damage/damage.c:290
        pScreen = <value optimized out>
        pScrPriv = 0x2047890
        pDamage = 0x283c550
        pNext = 0xff060c14ff060c14
        clippedRec = {extents = {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, data = 0x7ddba0}
        pDamageRegion = <value optimized out>
        pixClip = {extents = {x1 = 30512, y1 = 520, x2 = 0, y2 = 0}, data = 0x100000001}
        draw_x = <value optimized out>
        draw_y = <value optimized out>
        screen_x = <value optimized out>
        screen_y = <value optimized out>
#1  0x00000000004e1960 in DamageDamageRegion (pDrawable=0x2087690, pRegion=<value optimized out>) at ../../../miext/damage/damage.c:2099
No locals.
#2  0x00007fa1469a7b75 in exaPixmapDirty (pPix=<value optimized out>, x1=<value optimized out>, y1=<value optimized out>, x2=<value optimized out>, 
    y2=<value optimized out>) at ../../exa/exa.c:162
        box = <value optimized out>
        region = {extents = {x1 = 0, y1 = 0, x2 = 2560, y2 = 1024}, data = 0x0}
#3  0x00007fa1469ad16b in exaPrepareAccessReg_mixed (pPixmap=0x2087690, index=<value optimized out>, pReg=0x0) at ../../exa/exa_migration_mixed.c:251
        as_dst = 1
        pixmaps = {{as_dst = 0, as_src = 1, pPix = 0x2087690, pReg = 0x0}}
        pExaPixmap = 0x20876e0
        has_gpu_copy = <value optimized out>
        success = <value optimized out>
#4  0x00007fa1469b727f in ExaCheckPolySegment (pDrawable=0x22fbe60, pGC=0x23312e0, nsegInit=1, pSegInit=0x2323924) at ../../exa/exa_unaccel.c:280
        pExaScr = 0x20472f0
        pExaGC = 0x23313a8
#5  0x00000000004de96f in damagePolySegment (pDrawable=0x22fbe60, pGC=0x23312e0, nSeg=1, pSeg=<value optimized out>) at ../../../miext/damage/damage.c:1144
        pGCPriv = 0x23313b8
        oldFuncs = 0x7d6880
#6  0x000000000042f353 in ProcPolySegment (client=0x22fb800) at ../../dix/dispatch.c:1768
        nsegs = <value optimized out>
        pGC = 0x23312e0
        pDraw = 0x22fbe60
        stuff = 0x2323918
#7  0x0000000000432d09 in Dispatch () at ../../dix/dispatch.c:431
        clientReady = 0x22ae850
        result = <value optimized out>
        client = 0x22fb800
        nready = 0
        icheck = 0x7e8c10
        start_tick = 660
#8  0x0000000000426fae in main (argc=13, argv=<value optimized out>, envp=<value optimized out>) at ../../dix/main.c:287
        i = <value optimized out>
        alwaysCheckForInput = {0, 1}
A debugging session is active.

	Inferior 1 [process 2934] will be detached.

Quit anyway? (y or n) Not confirmed.
Continuing.

Program received signal SIGABRT, Aborted.
0x00007fa1495fe405 in raise () from /lib/x86_64-linux-gnu/libc.so.6
Continuing.

Program terminated with signal SIGABRT, Aborted.
The program no longer exists.