#0  _wordcopy_fwd_aligned (dstp=6455411520, srcp=2101719664, len=7341082) at wordcopy.c:41
        a0 = <optimized out>
        a1 = <optimized out>
#1  0x00007f6f344848f5 in __memmove_sse2 (dest=0x180c5c340, src=<optimized out>, len=58728656) at ../string/memmove.c:76
        dstp = <optimized out>
        srcp = <optimized out>
#2  0x00007f6f279cff7a in drisw_update_tex_buffer (drawable=<optimized out>, ctx=<optimized out>, res=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string3.h:58
        dPriv = <optimized out>
        st_ctx = <optimized out>
        pipe = 0x1b5d2a0
        transfer = 0x4d44320
        map = 0x80c5d340 <Address 0x80c5d340 out of bounds>
        x = -598564160
        y = 32767
        w = 14682164
        h = 0
        ximage_stride = <optimized out>
        line = -1
#3  0x00007f6f279d118e in dri_set_tex_buffer2 (pDRICtx=<optimized out>, target=3553, format=8409, dPriv=<optimized out>) at dri_drawable.c:230
        internal_format = PIPE_FORMAT_B8G8R8X8_UNORM
        ctx = 0x1b5ceb0
        drawable = 0x620f650
        pt = 0x78740f0
#4  0x00007f6f2cd474b2 in GLScreen::setDefaultViewport (this=<optimized out>) at /build/buildd/compiz-0.9.7.0~bzr2995/plugins/opengl/src/screen.cpp:1088
No locals.
#5  0x0000000000000000 in ?? ()
No symbol table info available.