Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753981AbcCJQtx (ORCPT ); Thu, 10 Mar 2016 11:49:53 -0500 Received: from mail.skyhub.de ([78.46.96.112]:37701 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753134AbcCJQto (ORCPT ); Thu, 10 Mar 2016 11:49:44 -0500 Date: Thu, 10 Mar 2016 17:49:24 +0100 From: Borislav Petkov To: "Bryan O'Donoghue" Cc: Andy Shevchenko , Ingo Molnar , "linux-kernel@vger.kernel.org" , "x86@kernel.org" , Andy Lutomirski , Fenghua Yu , Linus Torvalds , "H. Peter Anvin" , Thomas Gleixner , Andrew Morton , Dave Hansen , Oleg Nesterov , "Yu, Yu-cheng" Subject: Re: Got FPU related warning on Intel Quark during boot Message-ID: <20160310164924.GC26708@pd.tnic> References: <20160310111935.GB13102@gmail.com> <20160310125610.GA26708@pd.tnic> <20160310145940.GB26708@pd.tnic> <1457624721.5784.0.camel@nexus-software.ie> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1457624721.5784.0.camel@nexus-software.ie> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 457 Lines: 14 On Thu, Mar 10, 2016 at 03:45:21PM +0000, Bryan O'Donoghue wrote: > It works but user-space FPU is broken; something's wrong with the > initial state of the FPU regs - it looks as though they aren't being > properly initialized and FPU context in the signal handler is wrong > too. What does your test prog say when you boot linux-next with "eagerfpu=off" and *without* my fix? -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply.