OpenSSL isn't thread-safe unless you register these locking and thread ID functions. Most often the crashes would occur around X509_verify_cert, even though it's insane that the certificate parsing functions wouldn't be thread-safe. The bug for this was filed over two years ago, but it didn't seem like a high priority because the bug didn't bite anyone until it caused a spurious regression-test failure. Ironically, that was on a test for a *different* spurious regression-test failure, which I guess is just deserts[1] for leaving this on the to-do list so long. [1] Yes, it really is "deserts" in that phrase - not as in very dry places, but from late Latin "deservire" meaning to serve well or zealously. Aren't commit messages educational? Change-Id: I2a6c0e9b361abf54efa10ffbbbe071404f82b0d9 BUG: 906763 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/10075 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>