This might be related to the upstream bug on sf.net https://sourceforge.net/tracker/?func=detail&atid=604306&aid=1670475&group_id=93438 as OSM data suffers from occasional bad UTF-8 characters. When Inkscape encounters those it will allocate all available RAM in order to process it, and because that fails, crash.
-- Running Inkscape repeatedly by script causes X to use lots of CPU https://launchpad.net/bugs/87009 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
