theforeman/foreman-bats — pull request #23 by domcleal (2014-04-28 17:39:02+00:00)
Title: Increase RAM to 2GB for Rackspace, as swap has been removed

I'd hoped it was intermittent, but it's happening regularly: http://ci.theforeman.org/job/systest_foreman/1138/console

Seems to be since Rackspace removed swap from their default images.