This is a forwarded bug from Inkscape bugtracker, please follow-up at https://bugs.launchpad.net/inkscape/+bug/910100 It looks like some stack corruption is going on within composite_boxes(), which triggers segfaults in Inkscape if built with stack protector enabled (as in Ubuntu). #4 0x00007ffff0673260 in __stack_chk_fail () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #5 0x00007ffff16a3172 in composite_boxes (extents=0x7fffffffd510, boxes=<optimized out>, compositor=<optimized out>) at /build/buildd/cairo-1.11.3+git20120228.3c665102/src/cairo-spans-compositor.c:609 For the full backtrace and the original bug procedure, see the report on launchpad. A reduced crashing input-file is available there too.
I was not able to reproduce that on master. Judging from the trace, I believe the fix is commit 300e32a4a9d79c26077f33e9b67bad2106071849 Author: Seongwon Cho <seongwon1.cho@samsung.com> Date: Wed Feb 29 18:59:34 2012 +0900 mono-scan-convertor: Include space for the closing span When estimating the maximum number of spans required for a particular width, we need to include a closing span. Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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