Thread:Project:Support desk/Mediawiki Pages Hang/reply (3)

86.173 advices everyone to upgrade. I don't know of a specific bugfix, which is included in 1.22, so that it would solve your problem.

However, it is true that after MediaWiki 1.20 has been released, a great number of bugfixes went into the MediaWiki core and so it might really be that when you upgrade to 1.22, the problem is gone. No promisses, but I think it might be worth a try.