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Date:      Wed, 28 Mar 2018 19:48:50 -0700
From:      Cy Schubert <Cy.Schubert@cschubert.com>
To:        Glen Barber <gjb@FreeBSD.org>
Cc:        Eitan Adler <eadler@freebsd.org>, rgrimes@freebsd.org, src-committers <src-committers@freebsd.org>, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org, FreeBSD Release Engineering Team <re@freebsd.org>
Subject:   Re: Mismerge at r330897 in stable/11, Audit report
Message-ID:  <201803290248.w2T2moNj007390@slippy.cwsent.com>
In-Reply-To: Message from Glen Barber <gjb@FreeBSD.org> of "Thu, 29 Mar 2018 02:26:26 -0000." <20180329022626.GP81123@FreeBSD.org>

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In message <20180329022626.GP81123@FreeBSD.org>, Glen Barber writes:
> 
> --88pBQ1/6ie/nQzMF
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> On Wed, Mar 28, 2018 at 07:17:20PM -0700, Eitan Adler wrote:
> > On 28 March 2018 at 19:04, Rodney W. Grimes
> > <freebsd@pdx.rh.cn85.dnsmgr.net> wrote:
> > >> On 28 March 2018 at 18:35, Rodney W. Grimes
> > >> <freebsd@pdx.rh.cn85.dnsmgr.net> wrote:
> > >> >> >> Hi!
> > >> >> >>
> > >> >> >> This part of the MFC is wrong:
> > >> >> >>
> > >> >> >> https://svnweb.freebsd.org/base/stable/11/sys/sys/random.h?limit=
> _changes=3D0&r1=3D330897&r2=3D330896&pathrev=3D330897
> > >> >
> > >> > Can we try to identify exactly what rXXXXXX that is a merge of?
> > >> >
> > >> >> >> Could you please MFC back the other random related changes too? =
> Some
> > >> >> >> of them made by cem@.
> > >> >> >>
> > >> >> >> On 3/14/18, Eitan Adler <eadler@freebsd.org> wrote:
> > >> >> >>> Author: eadler
> > >> >> >>> Date: Wed Mar 14 03:19:51 2018
> > >> >> >>> New Revision: 330897
> > >> >> >>> URL: https://svnweb.freebsd.org/changeset/base/330897
> > >> >> >>>
> > >> >> >>> Log:
> > >> >> >>>   Partial merge of the SPDX changes
> > >> >> >>>
> > >> >> >>>   These changes are incomplete but are making it difficult
> > >> >> >>>   to determine what other changes can/should be merged.
> > >> >> >>>
> > >> >> >>>   No objections from:        pfg
> > >> >> >>>
> > >> >> > Am I missing something? If this MFC was supposed to be of the SPDX
> > >> >> > license tagging, why does it have any functional changes?
> > >> >> >
> > >> >> > Especially changes to random(4)?
> > >> >>
> > >> >> This was my failure. I only spot checked & compile-checked the diff
> > >> >> since I expected all changes to be comments/SPDX.
> > >> >>
> > >> >> However, I must have gotten carried away and included a few too many
> > >> >> revisions. Unfortunately some people have already merged fixes to my
> > >> >> failure and thus this can't be reverted as is without also reverting
> > >> >> those fixes.
> > >> >>
> > >> >> That said, I should do that since this commit message is utterly wr=
> ong.
> > >> >
> > >> > We do not have to revert r330897, with what follows I think
> > >> > we can easily find the revisions to revert from stable/11.
> > >> > ...
> > >>
> > >> While we don't have to revert it I'd rather do so than have bogus hist=
> ory.
> > >
> > > Reverting wont remove that history, thats a one way deal,
> > > and I think if we revert the bogus merges with the wrong
> > > history thats as good as its gona get.
> > >
> > >>
> > >> >From a look it seems the following was also merged:
> > >> r316370, r317095, r324394, and a few others.
> > >>
> > >> Is there a reason you don't want me to revert the changes?
> > >
> > > Repository churn is my main concern.
> > >
> > > It touches 6000+ files some of which have probably
> > > been touched since.   A very carefull pre commit
> > > audit would need to be done.
> > >
> > > Then another commit to 6000+ files to put it back,
> > > also needing a pre-commit audit. (Pretty easy now
> > > that I have a filter.)
> >=20
> > I'm actually using the same filter you pasted above to verify that my
> > changes are only reverting said files. That said, while I'd prefer to
> > revert, I'll defer to others if they have a differing opinion.
> >=20
> >=20
> > Note that I won't have access my dev box after tomorrow for about a week.
> >=20
>
> IMHO, if you are going to be away for over a week while we're headed
> directly into the 11.2 release cycle, revert the change.  What you
> committed is not what was intended, clearly, and the commit message does
> not reflect what had happened (as you noted).
>
> Any disagreements on this decision should be directed to me specifically
> in this case.

Agreed however we must tread carefully.


-- 
Cheers,
Cy Schubert <Cy.Schubert@cschubert.com>
FreeBSD UNIX:  <cy@FreeBSD.org>   Web:  http://www.FreeBSD.org

	The need of the many outweighs the greed of the few.





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