After some testing with 2.6.15-23 & 24 kernels, It seems that the shutdown process works well as long as the system has not been hibernated (suspended to disk). After hibernation, it hangs at one line or the other of the shutdown process.
-- Shutdown fails - system hangs at "deconfigure network devices" https://launchpad.net/bugs/46834 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
