tsiggss system test is failing on Fedora 26, at least on master and v9_10. Versions of krb5 and OpenSSL are: krb5-libs-1.15.1-28.fc26.x86_64 openssl-1.1.0f-7.fc26.x86_64 It passes on Fedora 25 with the following versions of krb and OpenSSL: krb5-libs-1.14.4-9.fc25.x86_64 openssl-1.0.2k-1.fc25.x86_64 Mukund