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. ** Changed in: php7.4 (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2057576 Title: php-fpm sometimes SIGSEGVs (signal 11) when running fpm_get_status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/php7.4/+bug/2057576/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs