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bug#22337: Breakage on amd64 when built with -O1 and higher

From: Andy Wingo
Subject: bug#22337: Breakage on amd64 when built with -O1 and higher
Date: Tue, 28 Feb 2017 15:45:24 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)

On Sun 07 Aug 2016 13:19, Andy Wingo <address@hidden> writes:

> On Sat 09 Jan 2016 15:57, address@hidden (Ludovic Courtès) writes:
>> Andreas Metzler <address@hidden> skribis:
>>> Debian used to build guile-2.0 without optimization, after changing to
>>> -O2 random segfaults in guile-gnutls testsuite started to appear on
>>> amd64.
>> Are you sure the GnuTLS issue has anything to do with that?
>> Guile has always been built with ‘-O2 -g’ by default, and building with
>> ‘-O0’ has never really been supported (the VM engine could eat too much
>> stack space and do silly things.)
> Apparently this is still an issue.  Debian actually reverted to
> compiling Guile with -O0:
>   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=809608
> Which is terrible of course.  Surely it is a bug in the Guile GnuTLS
> bindings and not in Guile proper.  Compiling Guile with -O2 probably
> holds on to less garbage; could it be that GnuTLS is erroneously not
> making its data structures visible?

>From what I can tell, Debian is back to building Guile with -g -O2:


Therefore marking this as closed.


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