SecureRandom hangs jruby 1.7.12

So I use Sinatra which uses the securerandom gem. Been using it under
vmware/ubuntu 12 for a while and went to run my app on Digitalocean, and
sinatra wouldn’t start.

doing a require sinatra would hang irb had to CTRL-Z to get out.

Tracked it down to the call to SecureRandom.hex().

I’m guessing this is some bad interaction when running under KVM
That’s what digitalocean uses. Been running the same app with same
gems under vmware and it works fine. Only other difference is that I
ubuntu 12 at home and on digitalocean I used 14.


This is a big enough issue now that bundle install hangs completely on
guests with some gems. I didn’t bother to track down which ones were
it this time, as it would just be a never ending battle that I don’t
to fight.

The workaround is to comment out this entry in


This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs