I have exact the same issue.
Ubuntu Server 14.04.1 LTS haveged 1.7c-1 (amd64) kernel 3.13.0-40-generic (64-bit)
As workaround I've set it to 3072, which works fine.
I have exact the same issue.
Ubuntu Server 14.04.1 LTS
haveged 1.7c-1 (amd64)
kernel 3.13.0-40-generic (64-bit)
As workaround I've set it to 3072, which works fine.