Comment 7 for bug 1622893

Another possibility is to split the gnutls random generator initialization to preinitialization (open fds, check for getrandom()), and initialization (read from the previous detected sources). That would allow gnutls to be used on early boot without causing any delay. The drawback would be some performance penalty on multi-threaded environments on the usage of the random generator.

I have patch at: https://gitlab.com/gnutls/gnutls/merge_requests/111/
if you are interested for a review or comments.