Well this is weird.
I had a page on my wiki.
Created file link on it
[[File:The_Proud_Father.jpg|right|thumb|250px|The Proud Father. Sam
Brown, ca. 1920-30]]
Saved the page.
Followed the link.
Uploaded the file (3021 x 3575, 1.55MB)...
... and, ever since then both that file's page and the article page it
was to appear on, are blank. Server is not serving any code at all.
Some sort of PHP or memory limit? I can view other pages just fine.