Segmetation Fault

0xb7e4632d in I830Sync (pScrn=0x8283d40) at i830_accel.c:196
196     i830_accel.c: No such file or directory.
        in i830_accel.c


(gdb) bt f
#0  0xb7e4632d in I830Sync (pScrn=0x8283d40) at i830_accel.c:196
        ringmask = 131071
        outring = 43784
        ringused = 0
        virt = (
    volatile unsigned char *) 0xa7c75000 <Address 0xa7c75000 out of bounds>
        needed = 8
        pI830 = (I830Ptr) 0x8285738
        flags = 17
        __FUNCTION__ = "I830Sync"
#1  0xb7cc2925 in XAACopyAreaFallback (pSrc=0xa77a138, pDst=0x9e22880,
    pGC=0xa35d078, srcx=0, srcy=0, width=1024, height=30, dstx=1, dsty=62)
    at xaaFallback.c:83
        infoRec = (XAAInfoRecPtr) 0x8295208
        ret = (RegionPtr) 0x826e508
        pGCPriv = (XAAGCPtr) 0xa35d108
        oldFuncs = (GCFuncs *) 0xb7d151e0
#2  0xb7cc461f in XAACopyArea (pSrcDrawable=0xa77a138, pDstDrawable=0x9e22880,
    pGC=0xa35d078, srcx=0, srcy=0, width=1024, height=30, dstx=1, dsty=62)
    at xaaCpyArea.c:72
        infoRec = (XAAInfoRecPtr) 0x8295208
#3  0xb7d0fc9d in cwCopyArea (pSrc=0xa77a138, pDst=0x9e22880, pGC=0xa35d078,
    srcx=0, srcy=0, w=1024, h=30, dstx=1, dsty=62) at cw_ops.c:201
        odstx = 1
        odsty = 62
        osrcx = 0
        osrcy = 0
        pGCPrivate = (cwGCPtr) 0xa35d124
        dst_off_x = 0
        dst_off_y = 0
        pBackingDst = (DrawablePtr) 0x9e22880
        pBackingGC = (GCPtr) 0xa35d078
        src_off_x = 0
        src_off_y = 0
        pBackingSrc = (DrawablePtr) 0xa77a138
#4  0x081bbd53 in damageCopyArea (pSrc=0xa77a138, pDst=0x9e22880,
    pGC=0xa35d078, srcx=0, srcy=0, width=1024, height=30, dstx=1, dsty=62)
    at damage.c:834
        ret = (RegionPtr) 0x873ec78
        pGCPriv = (DamageGCPrivPtr) 0xa35d138
        oldFuncs = (GCFuncs *) 0x824c540
#5  0x0808efa8 in ProcCopyArea (client=0x873ec78) at dispatch.c:1802
        pDst = (DrawablePtr) 0x9e22880
        pSrc = (DrawablePtr) 0xa77a138
        pGC = (GC *) 0xa35d078
        stuff = (xCopyAreaReq *) 0x9ea16a4
        pRgn = (RegionPtr) 0xbfa60158
        rc = 0
#6  0x0818e28a in XaceCatchDispatchProc (client=0x873ec78) at xace.c:281
        stuff = (xReq *) 0x2000011
        major = 62
#7  0x0808ba03 in Dispatch () at dispatch.c:502
        clientReady = (int *) 0xbfa601a0
        result = 28
        client = (ClientPtr) 0x873ec78
        nready = 0
        icheck = (HWEventQueuePtr *) 0x82719d8
        start_tick = 12489960
#8  0x08074751 in main (argc=9, argv=0xbfa606d4, envp=0xbfa606fc) at main.c:452
        i = 1
        j = 2
        k = 2
        error = 136589300
        xauthfile = 0xbfa61fd4 "/var/gdm/:0.Xauth"
        alwaysCheckForInput = {0, 1}