If you want to quickly check your system use one of these commands:
bash
sudo journalctl --since "2026-10-01" --no-pager \ | grep -Ei \ 'memory size|out of memory|segfault|SIGSEGV|signal 11|php-fpm|Unknown on line 0'
bash
sudo zgrep -Ein \ 'Allowed memory size|Unknown on line 0|segfault|SIGSEGV|signal 11' \ /var/log/php*/*log* /var/log/nginx/*log* \ /var/log/apache2/*log* 2>/dev/null
commit 45cacb9