I've tested on another 20.04.6 and I could reproduce it, here's what I did:
place this php script somewhere accessible for web-server & php-fpm:
<?php fpm_get_status();
I used the following mods to /etc/php/7.4/fpm/pool.d/www.conf but I'm not sure it's needed
pm = static pm.max_children = 100
then run something like apache bench or similar, for me I used something like: ab -n 10000 -c 99 http://localhost/status.php
after a couple of seconds SIGSEGV warnings started to appear in the php-fpm log.
I've tested on another 20.04.6 and I could reproduce it, here's what I did:
place this php script somewhere accessible for web-server & php-fpm:
<?php
fpm_get_status();
I used the following mods to /etc/php/ 7.4/fpm/ pool.d/ www.conf but I'm not sure it's needed
pm = static
pm.max_children = 100
then run something like apache bench or similar, for me I used something like: localhost/ status. php
ab -n 10000 -c 99 http://
after a couple of seconds SIGSEGV warnings started to appear in the php-fpm log.