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

Summary by Rehman

Set $wgMaxShellMemory = 819600; in LocalSettings. See my last comment.

Rehman (talkcontribs)

Hello. When uploading a simple 4kb SVG on a freshly installed private test wiki running MW 1.35, I get the above error. The only modification done to the installation was adding SVG to $wgFileExtensions.

After uploading the SVG file, the file page displays the SVG. It just doesn't display in the "Thumbnail" cell in the "File history" section, and does not display on any other page when used. The above error is displayed in its place instead.

On the hosting platform/environment running 1.34, the same works perfectly fine.

To be 100% sure, I had also retried installing fresh on another subdomain. Same result.

Any idea what has changed/how to solve this issue?

Rehman (talkcontribs)

Based on my research, it seems like Manual:$wgMaxShellMemory needs to be modified as the default is not being set or is insufficient - for MediaWiki 1.35.

When manually adding in $wgMaxShellMemory = 819600; (and probably any larger value than the default), the thumbnails/SVG works.

For those that have this working automatically, Manual_talk:$wgMaxShellMemory#Note_about_minimum_size might be the reason.

Hope this helps.