It happened to me as well and I am using Onieric Beta 2, with all the updates up to right now. However, besides informing me of the crash, nothing else seem to have happened. I can use the OS normally.
-- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/722633 Title: compiz crashed with SIGSEGV (at startup) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/722633/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp

