StacktraceTop: pixman_op (new_reg=new_reg@entry=0x7f712c780d38, reg1=reg1@entry=0x7f712c780d38, reg2=reg2@entry=0x7f71d3134058, overlap_func=overlap_func@entry=0x7f71bd2e45c0 <pixman_region_union_o>, append_non1=append_non1@entry=1, append_non2=append_non2@entry=1) at ../../pixman/pixman-region.c:1007 pixman_region32_union (new_reg=new_reg@entry=0x7f712c780d38, reg1=reg1@entry=0x7f712c780d38, reg2=0x7f71d3134058) at ../../pixman/pixman-region.c:1440 INT_cairo_region_union (dst=0x7f712c780d30, other=<optimized out>) at /build/buildd/cairo-1.13.0~20140204/src/cairo-region.c:682 impl_window_add_update_area (region=0x7f71d3134050, impl_window=0x7f7130003b40) at /build/buildd/gtk+3.0-3.12.2/./gdk/gdkwindow.c:3825 gdk_window_invalidate_maybe_recurse_full (window=0x7f7130003b40, region=<optimized out>, child_func=0x7f71c9968e30 <true_predicate>, user_data=0x0) at /build/buildd/gtk+3.0-3.12.2/./gdk/gdkwindow.c:3928
StacktraceTop: new_reg@ entry=0x7f712c7 80d38, reg1=reg1@ entry=0x7f712c7 80d38, reg2=reg2@ entry=0x7f71d31 34058, overlap_ func=overlap_ func@entry= 0x7f71bd2e45c0 <pixman_ region_ union_o> , append_ non1=append_ non1@entry= 1, append_ non2=append_ non2@entry= 1) at ../../pixman/ pixman- region. c:1007 region32_ union (new_reg= new_reg@ entry=0x7f712c7 80d38, reg1=reg1@ entry=0x7f712c7 80d38, reg2=0x7f71d313 4058) at ../../pixman/ pixman- region. c:1440 region_ union (dst=0x7f712c78 0d30, other=<optimized out>) at /build/ buildd/ cairo-1. 13.0~20140204/ src/cairo- region. c:682 add_update_ area (region= 0x7f71d3134050, impl_window= 0x7f7130003b40) at /build/ buildd/ gtk+3.0- 3.12.2/ ./gdk/gdkwindow .c:3825 invalidate_ maybe_recurse_ full (window= 0x7f7130003b40, region=<optimized out>, child_func= 0x7f71c9968e30 <true_predicate>, user_data=0x0) at /build/ buildd/ gtk+3.0- 3.12.2/ ./gdk/gdkwindow .c:3928
pixman_op (new_reg=
pixman_
INT_cairo_
impl_window_
gdk_window_