Path: csiph.com!aioe.org!bofh.it!news.nic.it!robomod From: Scott Wood Newsgroups: linux.kernel Subject: Re: [PATCH v3 2/2] powerpc32: fix check_io_access() Date: Sat, 09 Jul 2016 09:20:01 +0200 Message-ID: References: X-Original-To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman 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] 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: robomod@news.nic.it List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Approved: robomod@news.nic.it Lines: 12 Organization: linux.* mail to news gateway X-Original-Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org X-Original-Date: Sat, 09 Jul 2016 02:13:02 -0500 X-Original-Message-ID: <1468048382.32358.81.camel@buserror.net> X-Original-References: <3257f244fea7785aa1791d3ac68922692bffc3c3.1463486314.git.christophe.leroy@c-s.fr> X-Original-Sender: linux-kernel-owner@vger.kernel.org Xref: csiph.com linux.kernel:1439903 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