Yesterday’s Ohai release had a critical windows bug that slipped through our beta testing. We’ve released Ohai 0.6.2 with a fix for this issue. Special thanks to Doug MacEachern for finding and patching this issue.
Ohai 0.6.2 also contains a fix to set a read timeout when querying EC2’s metadata servers.
You can install the ohai update via rubygems with gem install ohai. Sorry for the troubles, everyone.