It seems like that the "Permanently disable mobile site" link doesn't work with error when non-latin character is included in url, maybe because of encoding problem. It doesn't happen in enwp, but I encountered the error in dewp, frwp, jawp, and kowp(it seems enwp and zhwp doesn't have the problem). When I access the link, it says 'We have a problem!' and redirects me to non-mobile site, which display 404 error.
For example, please try accessing this url:
http://ko.m.wikipedia.org/disable/ㄱ
Version: .5
Severity: major