Can you run tar under valgrind and attach a log? (http://wiki.ubuntu.com/Valgrind)
** Changed in: tar (Ubuntu) Status: Unconfirmed => Needs Info -- [apport] tar crashed with SIGSEGV https://launchpad.net/bugs/91462 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs