From be65e01c50c7f02a2b65d9462f949ab4181afa0a Mon Sep 17 00:00:00 2001
From: mauro2306 <69889380+mauro2306@users.noreply.github.com>
Date: Tue, 1 Sep 2026 21:38:03 +0200
Subject: [PATCH 1/2] Disable OPcache JIT by default

The tracing JIT this image enables (opcache.jit=1255, 128M buffer) can emit
machine code that loops forever, wedging every php-fpm worker at 100% CPU
until the container is restarted. See linuxserver/docker-nextcloud#539.

PHP ships with the JIT off by default; Nextcloud's own tuning docs recommend
tracing with an 8M buffer. 1255 is not a documented preset (tracing is 1254).
---
 Dockerfile         | 4 ++--
 Dockerfile.aarch64 | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 61a1becf..5ee54526 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -67,8 +67,8 @@ RUN \
     echo 'opcache.memory_consumption=128'; \
     echo 'opcache.save_comments=1'; \
     echo 'opcache.revalidate_freq=60'; \
-    echo 'opcache.jit=1255'; \
-    echo 'opcache.jit_buffer_size=128M'; \
+    echo 'opcache.jit=disable'; \
+    echo 'opcache.jit_buffer_size=0'; \
   } >> "/etc/php84/conf.d/00_opcache.ini" && \
   { \
     echo 'memory_limit=-1'; \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 86acbad4..9bafc993 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -67,8 +67,8 @@ RUN \
     echo 'opcache.memory_consumption=128'; \
     echo 'opcache.save_comments=1'; \
     echo 'opcache.revalidate_freq=60'; \
-    echo 'opcache.jit=1255'; \
-    echo 'opcache.jit_buffer_size=128M'; \
+    echo 'opcache.jit=disable'; \
+    echo 'opcache.jit_buffer_size=0'; \
   } >> "/etc/php84/conf.d/00_opcache.ini" && \
   { \
     echo 'memory_limit=-1'; \

From 4686a95dd5c0f090e1cf7db2b76bbfa182ed9b33 Mon Sep 17 00:00:00 2001
From: mauro2306 <69889380+mauro2306@users.noreply.github.com>
Date: Sat, 5 Sep 2026 10:18:58 +0200
Subject: [PATCH 2/2] Add changelog entry for OPcache JIT disable

Added changelog entry for disabling OPcache JIT due to performance issues.
---
 readme-vars.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/readme-vars.yml b/readme-vars.yml
index 8139ab34..bd931482 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -145,6 +145,7 @@ init_diagram: |
   "nextcloud:latest" <- Base Images
 # changelog
 changelogs:
+  - {date: "05.09.26:", desc: "Disable OPcache JIT. The tracing JIT could emit code that loops forever, pinning all php-fpm workers at 100% CPU until the container was restarted."}
   - {date: "10.07.25:", desc: "Rebase to Alpine 3.22."}
   - {date: "12.02.25:", desc: "Rebase to Alpine 3.21."}
   - {date: "09.01.25:", desc: "Fix uploading large files. Existing users should update their nginx confs."}