From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ludovic =?UTF-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Subject: bug#40525: inferior process on core-updates crashes: mmap(PROT_NONE)
 failed
Date: Fri, 17 Apr 2020 11:02:20 +0200
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References: <87369c8mus.fsf@cbaines.net> <87a73jy8y9.fsf@gnu.org>
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To: Christopher Baines <mail@cbaines.net>
Cc: 40525@debbugs.gnu.org

Hi,

Glad you manage to get more info.

Christopher Baines <mail@cbaines.net> skribis:

> Following up on this, I've built Guile on core-updates with libgc@7
> rather than libgc@8 (which is what's used above), and I can't reproduce
> the issue. So, I'm getting more certain that this is a regression which
> the libgc upgrade has led to.

Bah.  :-/

We noticed similar issues with libgc@8 earlier but it seemed to be
fixed:

  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D36812

> Would it be feasible to keep guile, or at least the guile Guix uses with
> libgc@7 for now?

Yes, we can define a Guile variant in (gnu packages guile) and have
(guix self) refer to it.

Thanks,
Ludo=E2=80=99.