Date: Tue, 24 Oct 2017 09:30:46 +0200
From: Natanael Copa <ncopa@alpinelinux.org>
To: William Pitcock <nenolod@dereferenced.org>
Cc: alpine-dev <alpine-devel@lists.alpinelinux.org>
Subject: Re: [alpine-devel] heads up: guile downgraded in edge
Message-ID: <20171024093046.3b528958@ncopa-desktop.copa.dup.pw>
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On Thu, 19 Oct 2017 10:41:13 -0500
William Pitcock <nenolod@dereferenced.org> wrote:

> Hi,
> 
> Guile 2.2 has a major regression which, when combined with it's
> recursive-descent execution design, is fatal on Alpine systems due to
> overflowing stack.  At first, we decided to expand the stack limit to
> work around this problem, but it still overflowed with the expanded
> stack on the s390x architecture.
> 
> We observed that many other distributions did not upgrade to Guile 2.2
> yet, which leads us to believe that in some cases, it is even possible
> to overflow the stack on glibc systems with 8MB stack limit.
> 
> Accordingly, we decided to downgrade to Guile 2.0.14 which does not
> appear to have this regression.  The regression appears to be related
> to suboptimal hashtable usage, but we did not investigate much further
> after that point.
> 
> As such, if you have guile installed on your system, and you are
> running edge, you will want to allow the downgrade by using "apk
> upgrade --available" next time you upgrade your machine.


FYI. The issue was reported upstream but I have not got any response.

http://lists.gnu.org/archive/html/guile-devel/2017-09/msg00047.html

-nc


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