Thread:Project:Support desk/Pages present, but missing./reply (10)

When posting debug logs, please, remove the COOKIE lines, since anybody could be logged in with your account using those cookie values. I've used them to log out from your session, so nobody else can use them to access your account information. I've also put a warning about this on the How to debug page (since it's not the first time I see this happening).

Well, the debug log isn't outputting anything strange, except that the end of the search request doesn't end in "Request ended normally" like previous one does. And the last attempt was to create a thumbnail of an image.

What I suspect here is that the thumbnailing of the image is failing, and since thumbs are being generated when the page is parsed, it causes the page to end the response when it fails.

For example, on the debug log file I see it's trying to generate a thumb of YOURSERVER/wiki/images/a/a9/1900_Federal_Census_including_Titus_Family.jpg (it's a large file of 1533 KB), and it's trying to generate the thumb here YOURSERVER/wiki/images/thumb/a/a9/1900_Federal_Census_including_Titus_Family.jpg/120px-1900_Federal_Census_including_Titus_Family.jpg but accessing it thows a 404 not found error. This means thumb generation failed.

The file description page is failing also: YOURSERVER/wiki/index.php?title=File:1900_Federal_Census_including_Titus_Family.jpg most likely because file description pages generate a new thumb displayed at the file history.

Other images are thumbnailing fine. Apparently, it requires much memory for generating a thumb of that file, and your server isn't having enough memory for that. You might try increasing $wgMaxShellMemory. The error is happening when executing Thumb.php directly. See: YOURSERVER/wiki/thumb.php?f=1900_Federal_Census_including_Titus_Family.jpg&w=100

Maybe you can try to use a different thumbnailing program. See Manual:Image thumbnailing