Mediawiki fix “Error creating thumbnail: libgomp: Thread creation failed: Resource temporarily unavailable”

April 16th, 2020


libgomp error when generating thumbnails

When the thumbnail script runs out of memory this error is sometimes displayed.

While making some articles on a MediaWiki instance that featured SVG files, I ran into the following error:

Error creating thumbnail: libgomp: Thread creation failed: Resource temporarily unavailable

This text was in place of the thumbnail that usually generates when using the File: syntax.

As it turns out, this can occur when the thumbnail creation script runs out of memory. A simple fix is to add the following line to LocalSettings.php

$wgMaxShellMemory = 819600;

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