Installing the dbgsym version didn't actually give any more gdb output. Valgrind log is attached as per that wiki page.
** Attachment added: "Valgrind memcheck log" http://librarian.launchpad.net/6223322/valgrind-logs-network-admin.tar.gz -- network-admin crashes (segfaults) on starting https://launchpad.net/bugs/83421 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs