I have seen many an error, many error messages contain the clues to their fix.
But in an mu install with hundreds of blogs how do I go about troubleshooting the following errors in an error_log in my wpmu root:
[28-Aug-2007 19:54:40] Mismatched tag at line 279, column 7
[28-Aug-2007 19:57:40] Mismatched tag at line 279, column 7
[28-Aug-2007 22:13:04] Mismatched tag at line 279, column 7
[28-Aug-2007 23:53:53] Mismatched tag at line 279, column 7
[29-Aug-2007 02:08:23] Mismatched tag at line 279, column 7
[29-Aug-2007 09:34:38] Mismatched tag at line 27, column 8
[29-Aug-2007 09:34:39] Attribute without value at line 13, column 39
What tag, what blog, what line, what column? I'm pretty sure these errors are feed(rss) related? I have a sitefeed and it validates. I can't easily tell which feed breaks, if any are broken by this error, anyway.
Is there some strategy I could use to track this type of error?
Users report nothing. So it mustn't be a show stopper. I can't find this error in a web browser when I visit a blog front end. I don't want to go through every feed in the w3c feed validator one by one, is there any other way?
There are no other errors when these errors show in the logs.
I'll try the following, create an opml file for all blogs, load that in Thunderbird and see what happens.