Re: [PATCH 5.13 000/800] 5.13.2-rc1 review

From: Pavel Machek
Date: Wed Jul 14 2021 - 06:41:24 EST


Hi!
>
> > On 14. 07. 21, 10:15, Holger Kiehl wrote:
> > >> Yes, will try to do that. I think it will take some time ...
> > >>
> > > Hmm, I am doing something wrong?
> >
> > No, you are not: -rcs are not tagged.
> >
> > > git clone
> > > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
> > > linux-5.13.y
> > > cd linux-5.13.y/
> > > git tag|grep v5.13
> > > v5.13
> > > v5.13-rc1
> > > v5.13-rc2
> > > v5.13-rc3
> > > v5.13-rc4
> > > v5.13-rc5
> > > v5.13-rc6
> > > v5.13-rc7
> > > v5.13.1
> > >
> > > There is no v5.13.2-rc1. It is my first time with 'git bisect'. Must be
> > > doing something wrong. How can I get the correct git kernel rc version?
> >
> > So just bisect v5.13.1..linux-5.13.y.
> >
> But what do I say for bad?
>
> git bisect bad linux-5.13.y
> error: Bad rev input: linux-5.13.y
>
> Just saying:
>
> git bisect bad
> git bisect good v5.13.1
> Bisecting: a merge base must be tested
> [62fb9874f5da54fdb243003b386128037319b219] Linux 5.13
>
> If I read this correctly it now set v5.13 as bad and v5.13.1 as good.
> How to set the correct bad?

You can use hashes instead of symbolic revisions, and that may be
easier. I suspect you want to say "git bisect bad
origin/linux-5.13.y". You can also just do git show and note the hash.

There's other option: git bisect can be quite confusing, but you are
searching for a bug in linear history, so you can just git log
--pretty=oneline into a file, then do the binary search
manually. Should be 10 steps or so...

Best regards,
Pavel
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DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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