Comment 2 for bug 1024006

StacktraceTop:
 __assert_fail_base (fmt=0xb4b936ca <Address 0xb4b936ca out of bounds>, assertion=0xb6f3f179 "ret != inval_id", file=0xb6f3f0ea "../../src/xcb_io.c", line=528, function=0xb6f3f1fe "_XAllocID") at assert.c:94
 __GI___assert_fail (assertion=assertion@entry=0xb6f3f179 "ret != inval_id", file=file@entry=0xb6f3f0ea "../../src/xcb_io.c", line=line@entry=528, function=function@entry=0xb6f3f1fe "_XAllocID") at assert.c:103
 _XAllocID (dpy=0x8770028) at ../../src/xcb_io.c:528
 XCreatePixmap (dpy=0x8770028, d=25166306, width=width@entry=128, height=height@entry=128, depth=32) at ../../src/CrPixmap.c:56
 _cairo_xlib_surface_create_similar (abstract_src=0x8b5f3b8, content=CAIRO_CONTENT_COLOR_ALPHA, width=128, height=128) at /build/buildd/cairo-1.12.2/src/cairo-xlib-surface.c:306