From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 608C0C33CB2 for ; Tue, 28 Jan 2020 11:58:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3699F2468C for ; Tue, 28 Jan 2020 11:58:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580212700; bh=8RCnYntLRumJXkxzL083Nr34DOd28mEmVE/NIbRTmqQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=qZok/owlP0caNr34YkMkUoLuu+7qd0H7ZKwG8DgL7UyaegjoT2in5c/wfpb2ofNRG VRkAgk66UO2D6W3joiYi1rSv5NLv2AwObFZlKj3IBhkJE3yWNI58C4mVuE8hyZVnlD j/7NsCU5BRsuGf0KBUv7KouZD40z6fJSV3PbSVl8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725959AbgA1L6T (ORCPT ); Tue, 28 Jan 2020 06:58:19 -0500 Received: from foss.arm.com ([217.140.110.172]:55802 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725903AbgA1L6T (ORCPT ); Tue, 28 Jan 2020 06:58:19 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5AC31101E; Tue, 28 Jan 2020 03:58:18 -0800 (PST) Received: from localhost (unknown [10.37.6.21]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D65B03F52E; Tue, 28 Jan 2020 03:58:17 -0800 (PST) Date: Tue, 28 Jan 2020 11:58:16 +0000 From: Mark Brown To: Qian Cai Cc: Christophe Leroy , Anshuman Khandual , Linux-MM , Andrew Morton , Vlastimil Babka , Greg Kroah-Hartman , Thomas Gleixner , Mike Rapoport , Jason Gunthorpe , Dan Williams , Peter Zijlstra , Michal Hocko , Mark Rutland , Steven Price , Ard Biesheuvel , Masahiro Yamada , Kees Cook , Tetsuo Handa , Matthew Wilcox , Sri Krishna chowdary , Dave Hansen , Russell King - ARM Linux , Michael Ellerman , Paul Mackerras , Martin Schwidefsky , Heiko Carstens , "David S. Miller" , Vineet Gupta , James Hogan , Paul Burton , Ralf Baechle , "Kirill A . Shutemov" , Gerald Schaefer , Ingo Molnar , linux-snps-arc@lists.infradead.org, linux-mips@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH V12] mm/debug: Add tests validating architecture page table helpers Message-ID: <20200128115816.GA4689@sirena.org.uk> References: <144F3894-7934-4EC7-A9F9-C6A84CA08C65@lca.pw> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="5mCyUwZo2JvN/JJP" Content-Disposition: inline In-Reply-To: <144F3894-7934-4EC7-A9F9-C6A84CA08C65@lca.pw> X-Cookie: Doing gets it done. User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org --5mCyUwZo2JvN/JJP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Jan 28, 2020 at 02:12:56AM -0500, Qian Cai wrote: > > On Jan 28, 2020, at 1:13 AM, Christophe Leroy wrote: > > ppc32 an indecent / legacy platform ? Are you kidying ? > > Powerquicc II PRO for instance is fully supported by the > > manufacturer and widely used in many small networking devices. > Of course I forgot about embedded devices. The problem is that how > many developers are actually going to run this debug option on > embedded devices? Much fewer if the code isn't upstream than if it is. This isn't something that every developer is going to enable all the time but that doesn't mean it's not useful, it's more for people doing work on the architectures or on memory management (or who suspect they're running into a relevant problem), and I'm sure some of the automated testing people will enable it. The more barriers there are in place to getting the testsuite up and running the less likely it is that any of these groups will run it regularly. --5mCyUwZo2JvN/JJP Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl4wIdcACgkQJNaLcl1U h9Dslgf+KrZOvdjyO1AcLfLIlE2wA+hRmygG3Gh1YQ9wI6n+03XnA4v7f+7zZaQd 9nylNBzkErkupokycsWYhTEFN7o/tfjVGWte16XdQ1QHQE7npjULPGC5NcVVPfyc qwaW2i5J5TeAuYArz3YCqLvUY6IAJefbxhZbLXTTBnwINIazuBDiAUzsAd/Uy27Y x0YHtX4gXucyNEepoozxS07544hKbMvjTO0tt7P8egTTGwNHz+Uz6sMfUA/Muri7 hIJbxM03+cRn9ZKlTca/PzsXJN87ZLvWwcB0TGz+xI3Bjx2D2Q7Dn+OROr2O8e0z WXNLV2W9WAaBOwArY4IHdeORokpCzg== =j0+e -----END PGP SIGNATURE----- --5mCyUwZo2JvN/JJP--