(gdb) bt f
#0  pixmanBltsse2 (src_bits=0xa2107000, dst_bits=0x9a107000, src_stride=1408,
   dst_stride=1408, src_bpp=32, dst_bpp=32, src_x=0, src_y=0, dst_x=0,
   dst_y=0, width=1299, height=15000)
   at /usr/lib/gcc/i486-linux-gnu/4.4.0/include/emmintrin.h:685
       w = 4684
       s = (uint8_t *) 0xa21961c0 <Address 0xa21961c0 out of bounds>
       d = <value optimized out>
       src_bytes = (uint8_t *) 0xa2196000 <Address 0xa2196000 out of bounds>
       dst_bytes = (uint8_t *) 0x9a196000 <Address 0x9a196000 out of bounds>
       byte_width = 5196
#1  0xb7f0555a in pixman_blt (src_bits=0xa2107000, dst_bits=0x9a107000,
   src_stride=1408, dst_stride=1408, src_bpp=32, dst_bpp=32, src_x=0,
   src_y=0, dst_x=0, dst_y=0, width=1299, height=15000)
   at ../../pixman/pixman-utils.c:51
No locals.
#2  0xb795c897 in fbCopyNtoN (pSrcDrawable=0x964cfd0, pDstDrawable=0x972d510,
   pGC=0x98b4600, pbox=DWARF-2 expression error: DW_OP_reg operations
must be used either alone or in conjuction with DW_OP_piece.
) at ../../fb/fbcopy.c:64
       alu = 3 '\003'
       pm = 4294967295
       src = (FbBits *) 0xa2107000
       srcStride = 1408
       srcBpp = 32
       srcXoff = 0
       srcYoff = 0
       dst = (FbBits *) 0x9a107000
       dstStride = 1408
       dstBpp = 32
       dstXoff = 0
       dstYoff = 0
#3  0xb79e1ed6 in uxa_copy_n_to_n (pSrcDrawable=0x964cfd0,
   pDstDrawable=0x972d510, pGC=0x98b4600, pbox=0xbf8c9720, nbox=1, dx=0,
   dy=0, reverse=0, upsidedown=0, bitplane=0, closure=0x0)
   at ../../uxa/uxa-accel.c:477
       src_off_x = <value optimized out>
       src_off_y = <value optimized out>
       dst_off_x = <value optimized out>
       dst_off_y = <value optimized out>
       pSrcPixmap = (PixmapPtr) 0x964cfd0
       pDstPixmap = (PixmapPtr) 0x972d510
       __FUNCTION__ = "uxa_copy_n_to_n"
#4  0xb795b796 in fbCopyRegion (pSrcDrawable=0x964cfd0,
   pDstDrawable=0x972d510, pGC=0x98b4600, pDstRegion=0xbf8c9720, dx=0, dy=0,
   copyProc=0xb79e1780 <uxa_copy_n_to_n>, bitPlane=0, closure=0x0)
   at ../../fb/fbcopy.c:396
       reverse = <value optimized out>
       upsidedown = <value optimized out>
       pbox = (BoxPtr) 0xbf8c9720
       nbox = 1
       pboxNew1 = <value optimized out>
       pboxNew2 = <value optimized out>
       pboxBase = <value optimized out>
       pboxNext = <value optimized out>
       pboxTmp = <value optimized out>
#5  0xb795bd73 in fbDoCopy (pSrcDrawable=0x964cfd0, pDstDrawable=0x972d510,
   pGC=0x98b4600, xIn=0, yIn=0, widthSrc=1299, heightSrc=15000, xOut=0,
   yOut=0, copyProc=0xb79e1780 <uxa_copy_n_to_n>, bitPlane=0, closure=0x0)
   at ../../fb/fbcopy.c:596
       prgnSrcClip = (RegionPtr) 0x0
       freeSrcClip = 0
       prgnExposed = <value optimized out>
       rgnDst = {extents = {x1 = 0, y1 = 0, x2 = 1299, y2 = 15000},
 data = 0x0}
       dx = 0
       dy = 0
       box_x1 = <value optimized out>
       box_y1 = 0
       box_x2 = <value optimized out>
       box_y2 = <value optimized out>
       fastSrc = 1
       fastDst = 1
       fastExpose = 1
#6  0xb79e1728 in uxa_copy_area (pSrcDrawable=0x964cfd0,
   pDstDrawable=0x972d510, pGC=0x98b4600, srcx=0, srcy=0, width=1299,
   height=15000, dstx=0, dsty=0) at ../../uxa/uxa-accel.c:496
No locals.
#7  0x081823a2 in damageCopyArea (pSrc=0x964cfd0, pDst=0x972d510,
   pGC=0x98b4600, srcx=0, srcy=0, width=1299, height=15000, dstx=0, dsty=0)
   at ../../../miext/damage/damage.c:949
       ret = <value optimized out>
       pGCPriv = (DamageGCPrivPtr) 0x957ef58
       oldFuncs = (GCFuncs *) 0x81eca80
#8  0x0808b869 in ProcCopyArea (client=0x9858958) at ../../dix/dispatch.c:1555
       pDst = (DrawablePtr) 0x972d510
       pSrc = (DrawablePtr) 0x964cfd0
       pGC = (GC *) 0x98b4600
       pRgn = <value optimized out>
       rc = 4684
#9  0x0808d57f in Dispatch () at ../../dix/dispatch.c:437
       result = <value optimized out>
       client = (ClientPtr) 0x9858958
       nready = 0
       start_tick = 246280
#10 0x080722ed in main (argc=10, argv=0xbf8c9984, envp=Cannot access
memory at address 0x1454
)
   at ../../dix/main.c:397
       i = <value optimized out>
       alwaysCheckForInput = {0, 1}