From: Andy Wingo <wingo@pobox.com>
To: ludo@gnu.org (Ludovic Courtès)
Cc: 22337@debbugs.gnu.org, Andreas Metzler <ametzler@bebt.de>
Subject: bug#22337: Breakage on amd64 when built with -O1 and higher
Date: Sun, 07 Aug 2016 13:19:28 +0200 [thread overview]
Message-ID: <87wpjsq11b.fsf@pobox.com> (raw)
In-Reply-To: <877fjidcm5.fsf@gnu.org> ("Ludovic Courtès"'s message of "Sat, 09 Jan 2016 15:57:38 +0100")
On Sat 09 Jan 2016 15:57, ludo@gnu.org (Ludovic Courtès) writes:
> Andreas Metzler <ametzler@bebt.de> 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?
Andy
next prev parent reply other threads:[~2016-08-07 11:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-09 13:47 bug#22337: Breakage on amd64 when built with -O1 and higher Andreas Metzler
2016-01-09 14:57 ` Ludovic Courtès
2016-01-09 15:45 ` Andreas Metzler
2016-08-07 11:19 ` Andy Wingo [this message]
2017-02-28 14:45 ` Andy Wingo
2017-02-28 16:37 ` Andreas Metzler
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