Solarismen

When I migrated from apache with mod_php to nginx with php-fpm a few days ago, php dumped core on me if it was stopped immediately after having been started. This is due to https://bugs.php.net/bug.php?id=66694. The same bug is also filed under #68349.

Basically, port_getn claims to have events ready to be processed, when in reality, there are none. There are quite a few patches for this problem floating around, all of which are too complicated for my taste.

The following very small patch worked fine for me:

diff -ur php-7.0.13~/sapi/fpm/fpm/events/port.c php-7.0.13/sapi/fpm/fpm/events/port.c
--- php-7.0.13~/sapi/fpm/fpm/events/port.c 2016-11-08 16:07:40.000000000 +0000
+++ php-7.0.13/sapi/fpm/fpm/events/port.c 2016-11-12 12:47:24.964771094 +0000
@@ -138,7 +138,7 @@
for (i = 0; i < nget; i++) {

/ do we have a ptr to the event ? /
- if (!events[i].portev_user) {
+ if (events[i].portev_source == 0 || !events[i].portev_user) {
continue;
}

The idea is to check whether a proper event source value is set for any events returned by port_getn.