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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 87BA2C433F5 for ; Mon, 31 Jan 2022 12:06:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1350287AbiAaMGx (ORCPT ); Mon, 31 Jan 2022 07:06:53 -0500 Received: from smtp-out2.suse.de ([195.135.220.29]:35044 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349744AbiAaMGv (ORCPT ); Mon, 31 Jan 2022 07:06:51 -0500 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 9229D1F380; Mon, 31 Jan 2022 12:06:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1643630810; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=au++jgF3hU5FpkHd303MYYokLkB+gG3lUSiPbhg7U68=; b=L4yFauK8DPlTNaX8IHOVwsd6E3sD7KLLrzgnivMK+98d3UqJwEIEgGguAmkkS8+wbafwYo xfJ792Yfrnh7VSnD2FvVW2w1nsaz+Z93lrVRBRctz97ddUE8WsYF57DvckwL3RXSABghcs IlW/IIc6qaRzBWjj5ThoS9GoQPqLuiA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1643630810; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=au++jgF3hU5FpkHd303MYYokLkB+gG3lUSiPbhg7U68=; b=lwxUKuxzi2DzF7sbefT2HnQtscVPok8yLPfTYP8kxZKgyXS7L1Klw4MTC9E64rzSrln/9Q EUVC4QPardoIbpCg== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 7B55413C40; Mon, 31 Jan 2022 12:06:50 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id tauBHNrQ92EkZAAAMHmgww (envelope-from ); Mon, 31 Jan 2022 12:06:50 +0000 Date: Mon, 31 Jan 2022 13:06:45 +0100 From: Borislav Petkov To: Jakub Kicinski Cc: kernel test robot , "Paul E. McKenney" , kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: Re: vmlinux.o: warning: objtool: do_machine_check()+0x5fa: call to memset() leaves .noinstr.text section Message-ID: References: <20220119102250.7e20b3df@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> <20220119104017.31e5ecc7@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> <20220119111523.71f8e9e3@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> <20220119123714.22b54d4c@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> <20220119145727.2034a180@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> <20220119153218.02ee6789@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220119153218.02ee6789@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 19, 2022 at 03:32:18PM -0800, Jakub Kicinski wrote: > On Thu, 20 Jan 2022 00:17:23 +0100 Borislav Petkov wrote: > > So, I'd like to reproduce that here and play with it a bit. What iso > > can I install in a guest here so that I can get pretty close to your > > environment? > > It's CentOS Stream 8. It may have some extra backports done by my $corp > but I don't think the compiler is backported. Ok, while trying to boot an externally supplied kernel with qemu -kernel and with a guest install of centos8, I managed to trigger the issues on the test box. I've pushed a branch here for you to test: https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=rc1%2bmce-noinstr Lemme know how that goes. Thx. -- Regards/Gruss, Boris. SUSE Software Solutions Germany GmbH, GF: Ivo Totev, HRB 36809, AG Nürnberg From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: multipart/mixed; boundary="===============6765012231946951357==" MIME-Version: 1.0 From: Borislav Petkov To: kbuild-all@lists.01.org Subject: Re: vmlinux.o: warning: objtool: do_machine_check()+0x5fa: call to memset() leaves .noinstr.text section Date: Mon, 31 Jan 2022 13:06:45 +0100 Message-ID: In-Reply-To: <20220119153218.02ee6789@kicinski-fedora-PC1C0HJN.hsd1.ca.comcast.net> List-Id: --===============6765012231946951357== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable On Wed, Jan 19, 2022 at 03:32:18PM -0800, Jakub Kicinski wrote: > On Thu, 20 Jan 2022 00:17:23 +0100 Borislav Petkov wrote: > > So, I'd like to reproduce that here and play with it a bit. What iso > > can I install in a guest here so that I can get pretty close to your > > environment? > = > It's CentOS Stream 8. It may have some extra backports done by my $corp > but I don't think the compiler is backported. Ok, while trying to boot an externally supplied kernel with qemu -kernel and with a guest install of centos8, I managed to trigger the issues on the test box. I've pushed a branch here for you to test: https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=3Drc1%2bmc= e-noinstr Lemme know how that goes. Thx. -- = Regards/Gruss, Boris. SUSE Software Solutions Germany GmbH, GF: Ivo Totev, HRB 36809, AG N=C3=BCr= nberg --===============6765012231946951357==--