Server restarted gracefully. Graceful restart requested, doing restart [Thu Apr 26 02:17:26 2012] [notice] seg fault or similar nasty error detected in the parent process We found the problem by using strace to watch httpd activity during failure. I had found that a /etc/init.d/httpd stop and /etc/init.d/httpd start worked fine, but /etc/init.d/httpd graceful or apachectl graceful brought the system down. we find the parent process to all other httpd processes, the one with ‘1’ as the parent process, and strace it to watch activity using ps, ps -aef | grep httpd Go to screen & run, strace -aef -p 8021 2>&1 | tee /tmp/strace.out issue the command apachectl graceful -Watch the file strace.out, We see access for ioncube_loader_lin_5.3.so , which succeeds with a file handle (20), and access for an ffmpeg.so module, which fails with ENOENT (-1). The process then logs to...