I am sorry. There is not much I can do, then. I do not have a sequence to reproduce the issue, and I cannot keep on running gnome-panel under valgrind -- response times suck, and there are issues on gnome-panel and any opened windows themselves (open windows are without windows control --right-clicking on the window title bar does not work), and they cover the panel itself, making it unaccessible.
-- [apport] gnome-panel crashed with SIGSEGV in ??() https://launchpad.net/bugs/81723 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs