[php-src] Issue #7915: php_opcache crash - memory access violation

Issue: https://github.com/php/php-src/issues/7915 Comment Author: jjdunn Thanks @cmb69 for the speedy reply. Yes we are running tons of CLI processes: ~2000/day on this server. However the schedule of these jobs is unchanged from the old server. Keeping a separate opcache.cache_id would defeat some of the value of caching - since these processes use many of the same files - and would consume vastly more memory (there are currently 22 separate CLI processes), so I don't think that's a realistic solution. I've changed verbosity_level=4 as suggested and added opcache.error_log configuration. Will post details here after the next crash...which I presume will occur.