Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752725Ab2K3VqF (ORCPT ); Fri, 30 Nov 2012 16:46:05 -0500 Received: from mail-ob0-f174.google.com ([209.85.214.174]:40994 "EHLO mail-ob0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750725Ab2K3VqC (ORCPT ); Fri, 30 Nov 2012 16:46:02 -0500 MIME-Version: 1.0 In-Reply-To: <50B90F4F.7070400@zytor.com> References: <1354301523-5252-1-git-send-email-vpalatin@chromium.org> <1354301523-5252-2-git-send-email-vpalatin@chromium.org> <50B90B31.3000907@zytor.com> <50B90E4D.8010604@zytor.com> <50B90F4F.7070400@zytor.com> From: Vincent Palatin Date: Fri, 30 Nov 2012 13:45:42 -0800 X-Google-Sender-Auth: t7dHdiWNAcVvWCHz2WcviAby2x0 Message-ID: Subject: Re: [PATCH] x86, fpu: avoid FPU lazy restore after suspend To: "H. Peter Anvin" Cc: Linus Torvalds , Ingo Molnar , Linux Kernel Mailing List , Thomas Gleixner , "the arch/x86 maintainers" , Peter Zijlstra , Jarkko Sakkinen , Duncan Laurie , Olof Johansson Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 960 Lines: 27 On Fri, Nov 30, 2012 at 11:55 AM, H. Peter Anvin wrote: > > On 11/30/2012 11:54 AM, Vincent Palatin wrote: > >> > > I have done a patch v2 according to your suggestions. > > I will run the testing on it now. > > I probably need at least 2 to 3 hours to validate it. > > > > That would be super. Let me know and I'll queue it up and send a pull > request with this and a few more urgent things to Linus. I have done 1000+ cycles so far with patch v3 (on 4-core Ivybridge and no eagerfpu), and did not hit my issue. I let the testing going on, but wrt the issue after suspend, this fixes it with very high probability (ie I have never done that many cycles without hitting the issue). -- Vincent -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/