/dev/io lost after cvs update today

Hello,

Today I updated my source tree, built and installed the hole base 
system. Since this /dev/io does not longer exist and I get a lot of  
messages like this:

ATA write-dma interrupt was seen but timeout fired LBA=53346288
ATA write-dma interrupt was seen but timeout fired LBA=53346288
ATA write-dma interrupt was seen but taskqueue stalled LBA=53346288

furthermore I am not able to log-on because the system hangs after typing in username and password. <http://dict.leo.org/?p=14/p..&search=furthermore>

Does someone have the same problems?

Regards,

Oliver Fischer