From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 97826 invoked by alias); 26 Nov 2015 18:18:01 -0000 Mailing-List: contact cygwin-apps-help@cygwin.com; run by ezmlm Precedence: bulk Sender: cygwin-apps-owner@cygwin.com List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Mail-Followup-To: cygwin-apps@cygwin.com Received: (qmail 97812 invoked by uid 89); 26 Nov 2015 18:18:00 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=3.7 required=5.0 tests=AWL,BAYES_05,RCVD_IN_DNSWL_LOW,SPAM_URI,SPF_PASS autolearn=no version=3.3.2 X-HELO: mail-in-10.arcor-online.net Received: from mail-in-10.arcor-online.net (HELO mail-in-10.arcor-online.net) (151.189.21.50) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (CAMELLIA256-SHA encrypted) ESMTPS; Thu, 26 Nov 2015 18:17:59 +0000 Received: from mail-in-19-z2.arcor-online.net (mail-in-19-z2.arcor-online.net [151.189.8.36]) by mx.arcor.de (Postfix) with ESMTP id 3p66l848zyz8Rqj for ; Thu, 26 Nov 2015 19:17:56 +0100 (CET) Received: from mail-in-10.arcor-online.net (mail-in-10.arcor-online.net [151.189.21.50]) by mail-in-19-z2.arcor-online.net (Postfix) with ESMTP id 8A06E35BA3E for ; Thu, 26 Nov 2015 19:17:56 +0100 (CET) X-DKIM: Sendmail DKIM Filter v2.8.2 mail-in-10.arcor-online.net 3p66l83Cx7z8Rqj Received: from Gertrud (p54B47EA7.dip0.t-ipconnect.de [84.180.126.167]) (Authenticated sender: stromeko@arcor.de) by mail-in-10.arcor-online.net (Postfix) with ESMTPSA id 3p66l83Cx7z8Rqj for ; Thu, 26 Nov 2015 19:17:56 +0100 (CET) From: Achim Gratz To: cygwin-apps@cygwin.com Subject: AVX on Cygwin Date: Thu, 26 Nov 2015 18:18:00 -0000 Message-ID: <87mvu039rg.fsf@Rainer.invalid> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-SW-Source: 2015-11/txt/msg00071.txt.bz2 You may have noted that the recent gmp update makes problems on some machines and two of the three reports come from Broadwell CPU. There is one thing that did indeed change with the update and that is use of the AVX ADC instruction on Broadwell/Skylake. Is it possible that somehow the stack model or some register save/restore is different on Cygwin that would produce that problem? I can only test on SandyBridge and IvyBridge for Intel and these have no problem. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ DIY Stuff: http://Synth.Stromeko.net/DIY.html