I reproduced again. There is a different stack trace, but it's still triggered from avahi calling into dbus_watch_handle.
** Attachment added: "another stacktrace" https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1086019/+attachment/3456394/+files/Stacktrace -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1086019 Title: cupsd crashes regularly (daily) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cups/+bug/1086019/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs