I saw the first time the bug with 2.3.10 but I have exactly the same bug with the gimp shipped with dapper (gimp-2.2) with no debug output only : > gimp-2.2 /usr/lib/gimp/2.0/plug-ins/gfig: fatal error: Erreur de segmentation -- the software gfig in gimp crash du to a bug in gtk https://launchpad.net/bugs/53345