How to bisect the 1.6.x series of commits

Frédéric Delanoy frederic.delanoy at
Fri Jan 3 06:10:52 CST 2014

On Fri, Jan 3, 2014 at 8:18 AM, Alan W. Irwin <irwin at> wrote:
> On 2014-01-02 13:07-0600 Ken Thomases wrote:
> Just out of curiosity what would git do if you tried to do a bisect
> between 1.6.1 (for a case where that was "good") and the latest 1.7.x
> release (for a case where that was "bad").  There is obviously no
> direct forward development path between the two cases.  Would git
> error out or would it automatically bisect using a development path
> consisting of the reverse development path back to 1.6 combined with
> the forward development path from there to the latest 1.7 release?

It would find a common ancestor, and have you test thie  (1.6 in this
case (and warn you about this).
e.g. in this case:

$ git bisect start
$ git bisect bad master
$ git bisect good wine-1.6.1

Bisecting: a merge base must be tested
[50dc4cd636cc88031e0a49697ccc9f03b398e449] Release 1.6.

Frédéric Delanoy

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