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Re: Guile potentially changing its GC a second time

From: Jean Abou Samra
Subject: Re: Guile potentially changing its GC a second time
Date: Thu, 24 Nov 2022 14:58:16 +0100 (CET)

> Le 24/11/2022 14:05 CET, Kevin Barry <> a écrit :
> On Thu, Nov 24, 2022 at 12:26:57PM +0100, Jean Abou Samra wrote:
> > Le 24/11/2022 à 12:12, Kevin Barry a écrit :
> > 
> > GC is definitely not the kind of thing where "passes the
> > regtests" means there is no problem. As we have seen in the
> > past, the most infuriating and mysterious GC problems reproduce
> > 1 time in 20 doc builds ...
> This is not ideal, but would some kind of manually run test that does
> things like that (build a bunch of pathological-case scores 100 times)
> be a bad idea? There would be a maintenance burden, but it might mean we
> catch problems before breaking users' scores. The test could be run (by
> a human) when there's a new Guile release, or before we do a stable
> release, or some such.

What would be the difference with 'make doc'?

In any case, a new Guile release series doesn't happen every
second day, and if we want to switch to a new one, there
should definitely be a mailing list thread where all details
of the transition are discussed, including how sure we are
that it works. For example, to switch to Guile 2.2, there was
a dual release and we removed Guile 1.8 support once it had
seen some use without major problems.


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