linux-kernel - Re: GIT bisection range errors

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Message-ID: <4823A503.8090102@keyaccess.nl>
Date:	Fri, 09 May 2008 03:12:35 +0200
From:	Rene Herman <rene.herman@...access.nl>
To:	Roland Dreier <rdreier@...co.com>
CC:	Ken Moffat <zarniwhoop@...world.com>,
	Adrian Bunk <bunk@...nel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: GIT bisection range errors

On 09-05-08 01:33, Roland Dreier wrote:

> This is normal and expected, due to the distributed nature of git and
> the fact that git-bisect operates on the full topology of history and
> not just a linear sequence of commits.
> 
> Imagine history like:
> 
>     A---B---C---D
>      \         /
>       \       /
>        \     /
>         E---F
> 
> where B is good and D is bad.  Now, when you bisect, there is no way to
> know whether, say, E is good or bad and hence the bisect process may
> present E as a tree to try.
> 
> Now, if B is the 2.6.25 release, then since E branched off before B, it
> will have a Makefile that says 2.6.25-rcX.  Which is exactly the
> behavior you are seeing.
> 
> In short, everything looks fine and is behaving as expected.

Great explanation. Thanks.

Rene
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