From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756633AbcGIHNY (ORCPT ); Sat, 9 Jul 2016 03:13:24 -0400 Received: from host.buserror.net ([209.198.135.123]:43608 "EHLO host.buserror.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751995AbcGIHNU (ORCPT ); Sat, 9 Jul 2016 03:13:20 -0400 Message-ID: <1468048382.32358.81.camel@buserror.net> From: Scott Wood To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Sat, 09 Jul 2016 02:13:02 -0500 In-Reply-To: <3257f244fea7785aa1791d3ac68922692bffc3c3.1463486314.git.christophe.leroy@c-s.fr> References: <3257f244fea7785aa1791d3ac68922692bffc3c3.1463486314.git.christophe.leroy@c-s.fr> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.18.5.2-0ubuntu3 Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 75.72.173.242 X-SA-Exim-Mail-From: oss@buserror.net X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * -15 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] Subject: Re: [PATCH v3 2/2] powerpc32: fix check_io_access() X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:57:07 +0000) X-SA-Exim-Scanned: Yes (on host.buserror.net) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2016-05-17 at 14:01 +0200, Christophe Leroy wrote: > On processors like the 8xx, the machine check exception can also > happen directly on the load/store instruction itself, so that case > needs to be handled as well > > Signed-off-by: Christophe Leroy > --- What machine checks are happening that this is handling?  Is there still 8xx code that probes for registers that might not be there? -Scott