Comment 2 for bug 2057576

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.