I just got an email (email@example.com still forwards to my new account - yeah!) that there's a partial power outage at Siebel Center. There's not any details other than they think it started at 7 pm CST and people are on-scene trying to address the issue.
The LLVM web/SVN server is in Siebel; the mailing list servers probably are as well. From my end, I can't reach llvm.org, so I suspect our systems are affected. Hopefully the mail servers are running and everyone will get this message tonight and not tomorrow afternoon.
I'll send updates if/when I get more information.