From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Andy Wingo Newsgroups: gmane.lisp.guile.bugs Subject: bug#22337: Breakage on amd64 when built with -O1 and higher Date: Sun, 07 Aug 2016 13:19:28 +0200 Message-ID: <87wpjsq11b.fsf@pobox.com> References: <20160109134721.GD1241@argenau.bebt.de> <877fjidcm5.fsf@gnu.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1470568822 29273 195.159.176.226 (7 Aug 2016 11:20:22 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 7 Aug 2016 11:20:22 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) Cc: 22337@debbugs.gnu.org, Andreas Metzler To: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=) Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Sun Aug 07 13:20:18 2016 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bWM7r-0006VQ-Rm for guile-bugs@m.gmane.org; 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Sun, 07 Aug 2016 11:20:02 +0000 Original-Received: (at 22337) by debbugs.gnu.org; 7 Aug 2016 11:19:39 +0000 Original-Received: from localhost ([127.0.0.1]:58406 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bWM7H-0008EC-FY for submit@debbugs.gnu.org; Sun, 07 Aug 2016 07:19:39 -0400 Original-Received: from pb-sasl2.pobox.com ([64.147.108.67]:53588 helo=sasl.smtp.pobox.com) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bWM7G-0008E5-BE for 22337@debbugs.gnu.org; Sun, 07 Aug 2016 07:19:38 -0400 Original-Received: from sasl.smtp.pobox.com (unknown [127.0.0.1]) by pb-sasl2.pobox.com (Postfix) with ESMTP id 091F82888E; Sun, 7 Aug 2016 07:19:37 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type:content-transfer-encoding; s=sasl; bh=OIgmyMLUlk+y wK77xIRaBkjh4Fk=; b=RkVC/ahz5nAOK2T41dRQ+ceNdczlX31iKUT8P2Mr8B71 brM40cgB52lYJ3GHDpTDj29y7WufVvfdpToLzzfkVXqZJDfGOsT/jffPWy7lMiv3 VUz0F08ElZGB2jAtSntisvbf+EfrU5uE8nNXHo3vECFJpCquncuhtCEl0rpf/mo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=pobox.com; h=from:to:cc :subject:references:date:in-reply-to:message-id:mime-version :content-type:content-transfer-encoding; q=dns; s=sasl; b=O+7Tnt MoGuEzM483h7Xcsbz6sHz9MyWjAIFTZ69OYLy+KGRmK6+gjCl7MBS9Mr9dgWd+xv VmuhRGbO0JYsvWprnQsM4XoE+ZPEpwtr81ZE56dl+7fFp0nOO6vQQdLIqE6nVd+T pkq9vyRtj++23srCqNm9hu3OylZIVVaBpTJmQ= Original-Received: from pb-sasl2.nyi.icgroup.com (unknown [127.0.0.1]) by pb-sasl2.pobox.com (Postfix) with ESMTP id 00F8F2888D; Sun, 7 Aug 2016 07:19:37 -0400 (EDT) Original-Received: from clucks (unknown [88.160.190.192]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pb-sasl2.pobox.com (Postfix) with ESMTPSA id 23C9B2888C; Sun, 7 Aug 2016 07:19:36 -0400 (EDT) In-Reply-To: <877fjidcm5.fsf@gnu.org> ("Ludovic =?UTF-8?Q?Court=C3=A8s?="'s message of "Sat, 09 Jan 2016 15:57:38 +0100") X-Pobox-Relay-ID: D2DFD160-5C90-11E6-84F0-28A6F1301B6D-02397024!pb-sasl2.pobox.com X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Original-Sender: "bug-guile" Xref: news.gmane.org gmane.lisp.guile.bugs:8342 Archived-At: On Sat 09 Jan 2016 15:57, ludo@gnu.org (Ludovic Court=C3=A8s) writes: > Andreas Metzler 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 =E2=80=98-O2 -g=E2=80=99 by default, and= building with > =E2=80=98-O0=E2=80=99 has never really been supported (the VM engine coul= d 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=3D809608 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