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=-5.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 8DF7AC3A5A1 for ; Wed, 28 Aug 2019 17:56:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6211E20679 for ; Wed, 28 Aug 2019 17:56:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="LKooIElG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726711AbfH1R42 (ORCPT ); Wed, 28 Aug 2019 13:56:28 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:53662 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726617AbfH1R42 (ORCPT ); Wed, 28 Aug 2019 13:56:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Sender:Reply-To: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=txC6lWmtj+oio3KV1A+MTj6T0kKiVWesqXTX1rGGOBA=; b=LKooIElGmi3mimn66Jmi/piIy h26w0yjYnaxBkNZwN4gKDO8Id/Y52/+KAjAKoseje7a9rOcHqY/2jXKL4yGry1rZJN4PerPB2GV9F +1ORBhDGmuMcJfiBstbBHNhUoMCsu59F5YUMUaqGlMtJN76HJB2kb0zKvhw2DVlHnAT5uexkXdMv4 YI+vz+O8lrz9HvReyswCbWKozO5WfAng6zxMJP1h5janNi7xZmaHqdMremixr6dxI6CTPg1WPovRR DSDb3WG3/ApsAfNG98speWsS0b752vw3rCYMs2+QkYU6pxAkCkxYHDgWjfnEah3gEsrLj1ThUy/Pw Urhi8R17Q==; Received: from [2601:1c0:6200:6e8::4f71] by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1i32BG-0001LQ-Fg; Wed, 28 Aug 2019 17:56:26 +0000 Subject: Re: mmotm 2019-08-27-20-39 uploaded (objtool: xen) To: Josh Poimboeuf Cc: akpm@linux-foundation.org, broonie@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-next@vger.kernel.org, mhocko@suse.cz, mm-commits@vger.kernel.org, sfr@canb.auug.org.au, Peter Zijlstra References: <20190828034012.sBvm81sYK%akpm@linux-foundation.org> <8b09d93a-bc42-bd8e-29ee-cd37765f4899@infradead.org> <20190828171923.4sir3sxwsnc2pvjy@treble> From: Randy Dunlap Message-ID: <57d6ab2e-1bae-dca3-2544-4f6e6a936c3a@infradead.org> Date: Wed, 28 Aug 2019 10:56:25 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <20190828171923.4sir3sxwsnc2pvjy@treble> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-next-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org On 8/28/19 10:19 AM, Josh Poimboeuf wrote: > On Wed, Aug 28, 2019 at 09:58:37AM -0700, Randy Dunlap wrote: >> On 8/27/19 8:40 PM, akpm@linux-foundation.org wrote: >>> The mm-of-the-moment snapshot 2019-08-27-20-39 has been uploaded to >>> >>> http://www.ozlabs.org/~akpm/mmotm/ >>> >>> mmotm-readme.txt says >>> >>> README for mm-of-the-moment: >>> >>> http://www.ozlabs.org/~akpm/mmotm/ >>> >>> This is a snapshot of my -mm patch queue. Uploaded at random hopefully >>> more than once a week. >>> >>> You will need quilt to apply these patches to the latest Linus release (5.x >>> or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in >>> http://ozlabs.org/~akpm/mmotm/series >>> >>> The file broken-out.tar.gz contains two datestamp files: .DATE and >>> .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss, >>> followed by the base kernel version against which this patch series is to >>> be applied. >> >> >> >> drivers/xen/gntdev.o: warning: objtool: gntdev_copy()+0x229: call to __ubsan_handle_out_of_bounds() with UACCESS enabled > > Easy one :-) > > diff --git a/tools/objtool/check.c b/tools/objtool/check.c > index 0c8e17f946cd..6a935ab93149 100644 > --- a/tools/objtool/check.c > +++ b/tools/objtool/check.c > @@ -483,6 +483,7 @@ static const char *uaccess_safe_builtin[] = { > "ubsan_type_mismatch_common", > "__ubsan_handle_type_mismatch", > "__ubsan_handle_type_mismatch_v1", > + "__ubsan_handle_out_of_bounds", > /* misc */ > "csum_partial_copy_generic", > "__memcpy_mcsafe", > then I get this one: lib/ubsan.o: warning: objtool: __ubsan_handle_out_of_bounds()+0x5d: call to ubsan_prologue() with UACCESS enabled -- ~Randy