Re: Bisecting tip/auto-x86-next?

[Ingo Molnar <mingo@elte.hu>]

* Kevin Winchester <kjwinchester@gmail.com> wrote:

> Hi,
>
> I am trying to track down a problem I reported here:
>
> http://lkml.org/lkml/2008/6/11/431

  [ GART related bootup crash. ]

> None or you were cc'd on the original report because I had no idea of 
> the source of the issue.  However, I have now narrowed down the 
> problem to the auto-x86-next tree.  Thus I did something like:
>
> $ git bisect start
> $ git bisect good linus/master
> $ git bisect bad tip/auto-x86-next

ok, in that case you can use tip's topical structure and probably bisect 
purely x86/gart, which has all x86 gart changes.

I.e. do something like this:

  git-checkout tip/x86/gart

build and boot that kernel, if it fails and mainline works then do:

  git-bisect reset
  git-bisect start
  git-bisect good linus/master
  git-bisect bad tip/x86/gart

this should drastically reduce the number of bisection steps needed, to 
3 or 4 iterations.

	Ingo