linux-x86-tip: pilot error?

["Paul E. McKenney" <paulmck@linux.vnet.ibm.com>]

Hello, Ingo,

I took the precaution of rebuilding my linux-2.6-tip from scratch as follows:

  544  mkdir linux-2.6-tip
  545  cd linux-2.6-tip
  546  git-init-db
  547  git-remote add linus git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
  548  git-remote add tip git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git
  549  git-remote update
  550  git-checkout tip-core-rcu-2008-06-16_09.23_Mon

The "git-checkout" command complained as follows:

	warning: You appear to be on a branch yet to be born.
	warning: Forcing checkout of tip-core-rcu-2008-06-16_09.23_Mon.
	Checking 24254 files out...
	 100% (24254/24254) done
	fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.
	Use '--' to separate paths from revisions
	Cannot detach HEAD

In addition, the kernel/rcutorture.c file does not have the "stutter"
changes in it after doing this checkout.

Did I mess something up?  Am I working with a too-old version of git
(git version 1.5.2.5)?  Or has git simply taken a deep and personal
disliking to me?  ;-)

My next step will be to try a more recent version of git.  In parallel,
I will just re-do the patch on top of my patch stack.

							Thanx, Paul

PS.  I am assuming that the repeated messages from git-update of
     the following form are expected behavior when there are tags:

     * refs/tags/tip-x86-xsave-2008-05-26_08_54_Mon: storing tag 'tip-x86-xsave-2008-05-26_08_54_Mon' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
       commit: d40ace0