The CRL cannot get any smaller as it's a DoD CRL. Also adding more memory does not solve the problem. It seems to have an issue with starting the server period with a large CRL. [alert] 19759#0: fork() failed while spawning "worker process" (12: Cannot allocate memory) Posted at Nginx Forum: http://forum.nginx.org/read.php?2,227763,238749#msg-238749