Note: this applies only to mod-php; it does NOT affect php-fpm.
** Summary changed: - Apache's systemd option "MemoryDenyWriteExecute" breaks PHP JIT + Apache's systemd option "MemoryDenyWriteExecute" breaks PHP JIT, under mod-php ** Description changed: 1. Problem: PHP (8.5.3) started giving me this warning: "Allocation of JIT memory failed, PCRE JIT will be disabled" This message arises from any call to preg_match(). - 2. Root cause: This is caused by the MemoryDenyWriteExecute=yes option being turned on in the Apache systemd service file. The bug occurs in Resolute, and it did not occur in 25.04 (I never had a 25.10 instance to test). + It ONLY applies if using libapache2-mod-php8.5; switching to php8.5-fpm + means this does not occur. 3. Solution: sudo systemctl edit apache2 add the lines - [Service] - MemoryDenyWriteExecute=no - + [Service] + MemoryDenyWriteExecute=no sudo service apache2 restart ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: apache2 2.4.66-2ubuntu1 ProcVersionSignature: Ubuntu 6.19.0-9.9-generic 6.19.5 Uname: Linux 6.19.0-9-generic x86_64 Apache2ConfdDirListing: False Apache2Modules: - AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message - httpd (pid 396646) already running + AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1. Set the 'ServerName' directive globally to suppress this message + httpd (pid 396646) already running ApportVersion: 2.33.1-0ubuntu3 Architecture: amd64 CasperMD5CheckResult: pass CurrentDesktop: MATE Date: Sun Mar 15 01:29:41 2026 InstallationDate: Installed on 2024-04-29 (684 days ago) InstallationMedia: Ubuntu-MATE 24.04 LTS "Noble Numbat" - Release amd64 (20240424) SourcePackage: apache2 UpgradeStatus: No upgrade log present (probably fresh install) modified.conffile..etc.apache2.sites-available.000-default.conf: [modified] mtime.conffile..etc.apache2.sites-available.000-default.conf: 2024-06-13T23:07:58.764283 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2144455 Title: Apache's systemd option "MemoryDenyWriteExecute" breaks PHP JIT, under mod-php To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apache2/+bug/2144455/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
