svn commit: r355828 - head/sys/sys

[Cy Schubert]

In message <CANCZdfqRm2HQ=ULPs6w3Kf2aZ6Gi46Q-vBYXaKiTs58X_siz9Q at mail.gmail.c
om>
, Warner Losh writes:
> --0000000000009630860599df06a0
> Content-Type: text/plain; charset="UTF-8"
>
> On Mon, Dec 16, 2019, 9:42 PM Cy Schubert <Cy.Schubert at cschubert.com> wrote:
>
> > In message <201912162355.xBGNtUq6078840 at repo.freebsd.org>, "Pedro F.
> > Giffuni" w
> > rites:
> > > Author: pfg
> > > Date: Mon Dec 16 23:55:30 2019
> > > New Revision: 355828
> > > URL: https://svnweb.freebsd.org/changeset/base/355828
> > >
> > > Log:
> > >   Double the size of ARG_MAX on LP64 platforms.
> > >
> > >   As modern software keeps growing in size, we get requests to update the
> > >   value of ARG_MAX in order to link the resulting object files. Other OSs
> > >   have much higher values but Increasiong ARG_MAX has a multiplied
> > effect on
> > >   KVA, so just bumping this value is dangerous in some archs like ARM32
> > that
> > >   can exhaust KVA rather easily.
> > >
> > >   While it would be better to have a unique value for all archs, other
> > OSs
> > >   (Illumos in partidular) can have different ARG_MAX limits depending on
> > the
> > >   platform,  For now we want to be really conservative so we are avoidng
> > >   the change on ILP32 and in the alternative case we only double it
> > since tha
> > > t
> > >   seems to work well enough for recent Code Aster.
> > >
> > >   I was planning to bump the _FreeBSD_version but it was bumped recently
> > >   (r355798) so we can reuse the 1300068 value for this change.
> >
> > This doesn't seem right. Each bump should be for a distinct change and
> > documented as such.
> >
>
> In the past we've said to piggy back versions when less than a day has
> passed since the last bump. The hard part on this is that follow through on
> actually documenting both has been lax.

We document this kind of thing on the wiki, but the PITA of opening a 
browser. Would it be better to have a similar type of file like RELNOTES 
and UPDATING to document version bumps? It seems a little silly, though, to 
have yet another file, maybe we could incorporate that into RELNOTES in the 
form of:

rNNNNNN: <optional: _FreeBSD_version>
	Some verbiage.


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

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