The call to TRACE_TKT_CREDS_FALLBACK in get_creds.c was supplying the wrong argument, causing a crash. https://github.com/krb5/krb5/commit/28676974f19099c3fb977baf5db2f34c24cca1cc Commit By: ghudson Revision: 24618 Changed Files: U trunk/src/lib/krb5/krb/get_creds.c