Here is a log file from a crash that happened after a recent freeze. I hope it helps.
** Attachment added: "apport.log" https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1244754/+attachment/3924018/+files/apport.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1244754 Title: [regression] compiz freezes when dragging a window to the top bar after being semi-maximized To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1244754/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs