Re: Stupid linux-next git question...

[Stephen Rothwell]

Hi Valdis,

On Wed, 31 Jul 2013 18:58:13 -0400 Valdis Kletnieks <Valdis.Kletnieks@xxxxxx> wrote:
>
> OK... So I have (as usual) found some issues in linux-next, so I'm looking at 3
> bisects.  I already know that bisecting between (say) next-20130715 and
> next-20130730 won't work, but bisecting between the 3.11-rc1 base of
> next-20130715 and next-20130730 *will* work.
> 
> Question 1:
> 
> Does bisecting between "the HEAD of Linus's tree when a given next- is built"
> and "some later next-" work? (basically, I know that anything in Linus's tree
> as of -0715 is 'Good', so I'd rather start from there than from 3.11-rc1 to
> save several bisects).

Yes, because that point only moves forward (obviously).

> Question 2:
> 
> If that works, how do I determine the commit ID to feed to 'git bisect good'?
> I *hope* this in Next/merge.log is the magic I'm looking for:
> 
> $ git reset --hard stable
> HEAD is now at 6c504ec Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
> Merging origin/master (5ae90d8 Linux 3.11-rc3)

Yes, that, or if you look in Next/SHA1s, my start point in Linus' tree is
labelled "origin".  Also, it is the "stable" branch in the current
linux-next tree (which is moved forward each day).

These are not stupid questions, by the way :-)
-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx

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