I have seen this as well. However, it is problematic to generate a backtrace from at-spi-registryd, as it drops to T state (in ps aux) whenever you attach to it using either gdb or strace, and kill -CONT'ing it does not help, and it actually makes Gnome in general not respond.
I am more than willing to help debug this problem, but not while it can't be debugged by the means pointed out in the wiki page you linked to. -- at-spi-registryd crash (please attach backtraces, check crash reports before) https://launchpad.net/bugs/62446 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
