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 8624DC7618F for ; Thu, 18 Jul 2019 16:23:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A697208C0 for ; Thu, 18 Jul 2019 16:23:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563466997; bh=wRhm0B+F2MDWS6n5Tn2SaHoSuJLy4eFplDgU7rJwaR0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=fQyMSOVS51sJA40uiJlCLFLK80iJMZcBSXpRp3Gcf6bYBQuXaU7bUDyCM/9O5rO9k AuWvhK6p7++eNu8MdJYriCOc62dJmVJvjQBRuZMtHfP7H/F+asRNlb8Br25PdRKQQ1 R0VZPmJBROeNLj2AG2Ut2F9W1FuMxFO9JsyZlsdw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729866AbfGRQXQ (ORCPT ); Thu, 18 Jul 2019 12:23:16 -0400 Received: from heliosphere.sirena.org.uk ([172.104.155.198]:45454 "EHLO heliosphere.sirena.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726040AbfGRQXP (ORCPT ); Thu, 18 Jul 2019 12:23:15 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sirena.org.uk; s=20170815-heliosphere; h=In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=u88OQSng8pqPv+xn+R4kAUlsl3qCV7o4uVNlPX15ue8=; b=qYExk+w1vbwc0rCB7fAgxwakH r0od6lDOr3H/+/SR6yuwp6kCzxy2VecJb4DJ0MokSnQxpeYb7cZoPZMp7VjZWsApTHk9bLQV/NC4L dVI8g8ehwmXAB4CJuCO+hnc6yVtfHitvJKnxynMhYhyW2weDb59Nm6l2QuHxPa6Zn6KA0=; Received: from ypsilon.sirena.org.uk ([2001:470:1f1d:6b5::7]) by heliosphere.sirena.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1ho9BX-0005Yo-7M; Thu, 18 Jul 2019 16:23:11 +0000 Received: by ypsilon.sirena.org.uk (Postfix, from userid 1000) id 25436274175C; Thu, 18 Jul 2019 17:23:10 +0100 (BST) Date: Thu, 18 Jul 2019 17:23:10 +0100 From: Mark Brown To: Andrey Ryabinin Cc: Arnd Bergmann , Andrew Morton , Qian Cai , Vasily Gorbik , Andrey Konovalov , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com Subject: Re: [PATCH] kasan: push back KASAN_STACK detection to clang-10 Message-ID: <20190718162310.GG5761@sirena.org.uk> References: <20190718141503.3258299-1-arnd@arndb.de> <0ee5952b-5a76-c8a5-a30a-ee3c46a54814@virtuozzo.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="qp4W5+cUSnZs0RIF" Content-Disposition: inline In-Reply-To: <0ee5952b-5a76-c8a5-a30a-ee3c46a54814@virtuozzo.com> X-Cookie: Oh, wow! Look at the moon! User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --qp4W5+cUSnZs0RIF Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Jul 18, 2019 at 07:18:28PM +0300, Andrey Ryabinin wrote: > On 7/18/19 5:14 PM, Arnd Bergmann wrote: > > asan-stack mode still uses dangerously large kernel stacks of > > tens of kilobytes in some drivers, and it does not seem that anyone > > is working on the clang bug. > > - default !(CLANG_VERSION < 90000) > > + default !(CLANG_VERSION < 100000) > Wouldn't be better to make this thing for any clang version? And only when the bug is > finally fixed, specify the clang version which can enable this safely. Especially if nobody is currently working on it. --qp4W5+cUSnZs0RIF Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAl0wnO0ACgkQJNaLcl1U h9APYwf+Kzm6iVj05bK6tW2kdTEo7s2zm8djsU0Lw/jReO/2k4adbVVkiYeVBcvr mfOHmcwEl9KdUAAhqhAXKmhUHjAX92Tiz8uPmlYm//5K2+0nAkq8T+qbZK6HGnSZ qg/7w6bG7SL/nEgQKjbxNz2ZRJJPRsFR69hPewzSmO+MEPEmsfBZbk6/2wcLS5+P AFO3X8Sn8Lx8b2ZszQ+gyr6z23CL9t4MnkaNY/3j/bWqhwZs1oXS6Ij8ALgU576K nhTH7/9p5vDpOayPI4tT+5WLCAKIjb+xkbUQcfDTlFxvbH0EAA91c2L1JfgAAwAq d324QrrbSFQ2A1y1BmntIQKfCBB+fg== =tOEW -----END PGP SIGNATURE----- --qp4W5+cUSnZs0RIF--