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Disable OPcache JIT by default (fixes php-fpm workers spinning at 100% CPU) #545

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Disable OPcache JIT by default (fixes php-fpm workers spinning at 100% CPU) #545

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be65e01
Disable OPcache JIT by default
mauro2306 Sep 1, 2026
4686a95
Add changelog entry for OPcache JIT disable
mauro2306 Sep 5, 2026
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4 changes: 2 additions & 2 deletions Dockerfile
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Expand Up @@ -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'; \
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4 changes: 2 additions & 2 deletions Dockerfile.aarch64
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Expand Up @@ -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'; \
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1 change: 1 addition & 0 deletions readme-vars.yml
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Expand Up @@ -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."}
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