Comment 78 for bug 793437

It is a possibility that bisecting won't be able to find the bad commit, but we aren't there yet. There a still hundreds of commits to search through. As for the kernel the rule is you don't break the build, there are occasions when it happens, often because it build under one config and then fails under another, I have never seen so many failures before and I hate to guess why that is.

next test kernel
  http://people.canonical.com/~jj/linux-image-2.6.39-2-generic_2.6.39-2.7~lp793437.37_amd64.deb

based on a4099ae79d04ecf31bd0fc5aa4c1472b6fa7993a