From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756516AbcHVTX5 (ORCPT ); Mon, 22 Aug 2016 15:23:57 -0400 Received: from quartz.orcorp.ca ([184.70.90.242]:48878 "EHLO quartz.orcorp.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755150AbcHVTXy (ORCPT ); Mon, 22 Aug 2016 15:23:54 -0400 Date: Mon, 22 Aug 2016 13:22:56 -0600 From: Jason Gunthorpe To: Denys Vlasenko Cc: "Aneesh Kumar K.V" , linuxppc-dev@lists.ozlabs.org, Benjamin Herrenschmidt , Paul Mackerras , Kees Cook , Oleg Nesterov , Michael Ellerman , Florian Weimer , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4] powerpc: Do not make the entire heap executable Message-ID: <20160822192256.GA10199@obsidianresearch.com> References: <20160810130030.5268-1-dvlasenk@redhat.com> <874m6ejf81.fsf@linux.vnet.ibm.com> <47a2e87e-5299-a009-8a65-5171b33967a1@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47a2e87e-5299-a009-8a65-5171b33967a1@redhat.com> User-Agent: Mutt/1.5.23 (2014-03-12) X-Broken-Reverse-DNS: no host name found for IP address 10.0.0.151 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Aug 22, 2016 at 08:37:05PM +0200, Denys Vlasenko wrote: > >Is this going to break any application ? I am asking because you > >mentioned the patch is lightly tested. > > I booted powerpc64 machine with RHEL7 installation, > it did not catch fire. When I authored the original patch my concern was if it had unforseen impacts on other platforms. I know PPC32 and ARM32 work OK. It would good to test other platforms as well. Jason