It's hard to know for sure, but the pattern in the backtrace suggests a gtk bug. The last identifiable method trying to get children iters. Without more information this bug will be impossible to debug.
** Changed in: inkscape Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to inkscape in Ubuntu. https://bugs.launchpad.net/bugs/961298 Title: inkscape crashed with SIGSEGV Status in Inkscape: A Vector Drawing Tool: Incomplete Status in “inkscape” package in Ubuntu: New Bug description: Apport says: ProblemType: Crash DistroRelease: Ubuntu 12.04 Package: inkscape 0.48.3.1-0ubuntu2 ProcVersionSignature: Ubuntu 3.2.0-19.30-generic 3.2.11 Uname: Linux 3.2.0-19-generic i686 NonfreeKernelModules: wl ApportVersion: 1.94.1-0ubuntu2 Architecture: i386 Date: Wed Mar 21 14:14:08 2012 ExecutablePath: /usr/bin/inkscape InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007) ProcCmdline: inkscape /home/username/Bug\ screenshots/USC\ alignment\ fixes\ cropped.png SegvAnalysis: Segfault happened at: 0x16ce2b6: movdqu (%edi),%xmm1 PC (0x016ce2b6) ok source "(%edi)" (0x00000000) not located in a known VMA region (needed readable region)! destination "%xmm1" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: inkscape StacktraceTop: ?? () from /lib/i386-linux-gnu/libc.so.6 ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0 ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0 ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0 ?? () from /usr/lib/i386-linux-gnu/libgtk-x11-2.0.so.0 Title: inkscape crashed with SIGSEGV UpgradeStatus: Upgraded to precise on 2012-02-27 (22 days ago) UserGroups: adm admin cdrom dialout dip fax floppy fuse lpadmin plugdev sambashare tape video To manage notifications about this bug go to: https://bugs.launchpad.net/inkscape/+bug/961298/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp