I have a pretty reliable permanent hang after updating to r9062 this evening.  The hang isn't immediate, but happens pretty reliably after editing tracked files for 10 minutes or so.

Inspecting a sample of the process suggests it is scm:background_status that is hanging.  My repo is git.  I tried disabling the SCM bundle, but that doesn't appear to have helped.

The sample, if it's helpful: http://pastie.org/3411939

-MinRK