Glenn Morris wrote:
> Since 583995c, make check on hydra crashes when loading the gnutls tests.
> It uses gnutls 3.2.21. I installed that on my rhel7 system (with
> --disable-non-suiteb-curves) and reproduced the crash. The

I don't see how the crash can occur with vanilla GnuTLS 3.2.21, as its 
gnutls_cipher_list returns a list of IDs that does not contain 
GNUTLS_CIPHER_UNKNOWN. Perhaps you were using a modified GnuTLS 3.2.21. Or 
possibly I'm misreading the GnuTLS source code, though I don't see how.

As you're observing the problem I installed the attached, which is similar to 
the patch that worked for you.