Public bug reported: This bug originates from Heroku stack images: https://github.com/heroku /stack-images/pull/185
The imagemagick area limits should be pixels and not bytes. The `policy.xml` template uses <policy domain="resource" name="area" value="128MB"/> but should actually be <policy domain="resource" name="area" value="128MP"/> The consequence of this bug is major confusion for people who think that area can only be 128 megabyte but actually can be 1 gigabyte with this limit. People relying on the output of `identify -list resource` will be confused as well at least, because it will print `Area: 128000000P` if you configured `128MB`. It's hard to find out, what units we should use for area resource limits because official ImageMagick documentation contradicts itself: * [ImageMagick _PixelCache_ architecture](https://imagemagick.org/script/architecture.php#:~:text=maximum%20area%20in%20bytes%20of%20any%20one%20image%20that%20can%20reside%20in%20the%20pixel%20cache%20memory.%20If%20this%20limit%20is%20exceeded,%20the%20image%20is%20automagically%20cached%20to%20disk%20and%20optionally%20memory-mapped.) * [ImageMagick resource limits (environment variables)](https://imagemagick.org/script/resources.php#:~:text=Set%20the%20maximum%20width%20*%20height%20of%20an%20image%20that%20can%20reside%20in%20the%20pixel%20cache%20memory.%20Images%20that%20exceed%20the%20area%20limit%20are%20cached%20to%20disk%20(see%20MAGICK_DISK_LIMIT)%20and%20optionally%20memory-mapped.) * [`policy.xml` example in source code](https://github.com/ImageMagick/ImageMagick/blob/8ae4ace285a385c5f58b1029f7a4a79925a42853/config/policy.xml#L65) So without reading code, I simply trust in the format used by `identify -list resource`. ** Affects: imagemagick (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1910980 Title: Wrong units for ImageMagick area limit in policy.xml To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/imagemagick/+bug/1910980/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
