Ross Lagerwall / Sebastien Bacher, thank you for your attention to this issue.
While I had both SMB and AFP checked in OS X Sharing at the time of reproduction (with Windows sharing disabled), I've upgraded to Utopic since then (this mitigated issues encountered with my environment such as this one, virtualbox crashes, remmina crashes, among other issues) and so far I cannot reproduce this under any permutation of enabling SMB, AFP, or Windows sharing for a user account. apt-cache policy gvfs gvfs: Installed: 1.20.2-1ubuntu3 Candidate: 1.20.2-1ubuntu3 Version table: *** 1.20.2-1ubuntu3 0 500 http://archive.ubuntu.com/ubuntu/ utopic-proposed/main amd64 Packages 100 /var/lib/dpkg/status 1.20.2-1ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ utopic/main amd64 Packages ** Changed in: gvfs (Ubuntu) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gvfs in Ubuntu. https://bugs.launchpad.net/bugs/1403149 Title: Unable to mount OSX Yosemite causing excessive (~25%) CPU usage and moderate desktop sluggishness To manage notifications about this bug go to: https://bugs.launchpad.net/gvfs/+bug/1403149/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs