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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS 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 8EDA3C43381 for ; Wed, 20 Mar 2019 20:44:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 51D9D218C3 for ; Wed, 20 Mar 2019 20:44:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="i7V/2UXp" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727239AbfCTUof (ORCPT ); Wed, 20 Mar 2019 16:44:35 -0400 Received: from mail-it1-f181.google.com ([209.85.166.181]:38639 "EHLO mail-it1-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726006AbfCTUoe (ORCPT ); Wed, 20 Mar 2019 16:44:34 -0400 Received: by mail-it1-f181.google.com with SMTP id m18so1014566ita.3 for ; Wed, 20 Mar 2019 13:44:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:subject:from:to:cc:date:in-reply-to:references :mime-version:content-transfer-encoding; bh=JJDKmFv5bZNPCu04WpjAA88xvIr2zAgmNLvX0lslkL8=; b=i7V/2UXpSKTF6f3Eq4eh7Nr+eew7WnxY7s3LITeIt8bE2pcEonk4Vh2s6B8K0wmVPA C0ZnkESyjDioVq1EDkRD78qYN/IaCGI29GThbCS6q/aGAImCR0X3ENTNorqGRAISt6mY /Xe9KSMGLZ6Aq3MnExjhsdn7LgMEDKiZvgdnl4a6pP1JP/Uv1kHGfTOmNoZlXvYiVlQ5 as7spl9ulm8yrinOpA8qJqaqctDGQyj2htnSyQ79MuCI4thz+HhK5eShsW55xzb0J/Ma zQSybh5Ewgs2PV5+vQfSMiJzhA1pZ0/xdS8hgBQHnlcCFqgNlHXSfNsGKrMAZvKanCnC yeVQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:subject:from:to:cc:date:in-reply-to :references:mime-version:content-transfer-encoding; bh=JJDKmFv5bZNPCu04WpjAA88xvIr2zAgmNLvX0lslkL8=; b=W4Wgp0wwioVW3WJeiGxCO2qn9eLdEjb8CrEBogNyv55fKkSj2sd4m596JEg1giN+PY ATwjsB5in8bmDuGi9RIsr6ac5uqvz5sX1Ovmcg153qCGMbbv2OGF0bS26Gvy1xzKgw7g 516yMsmHw1+kxZUIjdLtG6zGlYkIU8r88LVkDrY7xw1tg9HQq1ZzsNQUCiBEt4IxnUXU NuX6CxFTJY57YUffM/ICPSYelZjfdgGOuClbQzLJDcHziozplEGZAqk3305155C06ISY ISNPjKdvqlqA1LW8452NKnqp+moTsvAdnbyAdu5nRHzElBNiak25Dcq/xRKU0GS8N5Jh /cFw== X-Gm-Message-State: APjAAAUkFLrd5Px8NMQeOWaRdAKTSdpF1tadd4i+dgkKzX2Jz6FiuYVk bUSH6ibUpr8BahQ+sXL1xwA= X-Google-Smtp-Source: APXvYqzPGvDMrNnrksMtAtVrmQB8cHsZ9mRp1JCnPrtQ0TYivnEWi9uR3t3mb30pnrQKw11lMrA+GA== X-Received: by 2002:a24:2847:: with SMTP id h68mr222999ith.82.1553114673911; Wed, 20 Mar 2019 13:44:33 -0700 (PDT) Received: from tzanussi-mobl ([2601:246:0:7004:98e9:b645:1289:9c63]) by smtp.googlemail.com with ESMTPSA id f26sm1369536ioh.55.2019.03.20.13.44.32 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 20 Mar 2019 13:44:33 -0700 (PDT) Message-ID: <1553114672.2015.4.camel@gmail.com> Subject: Re: dell_smbios KASAN bug From: Tom Zanussi To: Steven Rostedt Cc: Pali =?ISO-8859-1?Q?Roh=E1r?= , Mario Limonciello , linux-kernel@vger.kernel.org Date: Wed, 20 Mar 2019 15:44:32 -0500 In-Reply-To: <20190320163227.3aa924c2@gandalf.local.home> References: <1553106560.2080.5.camel@gmail.com> <20190320144146.08ecd5e4@gandalf.local.home> <1553108749.2079.1.camel@gmail.com> <20190320151353.1a223c0e@gandalf.local.home> <1553110221.2034.1.camel@gmail.com> <20190320154534.46ebab51@gandalf.local.home> <1553113736.2015.2.camel@gmail.com> <20190320163227.3aa924c2@gandalf.local.home> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.26.1-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2019-03-20 at 16:32 -0400, Steven Rostedt wrote: > On Wed, 20 Mar 2019 15:28:56 -0500 > Tom Zanussi wrote: > > > > > Unfortunately, no. > > > > > > That's really weird. I would recommend throwing in a bunch of > > > printks > > > to see if things are being freed and set, to make sure this code > > > is > > > hit > > > and something else isn't just corrupting it. > > > > > > > Actually the patch does make the KASAN bug go away - I'm so used to > > building without modules that I forgot to rebuild the module after > > applying the patch, sigh. > > I wasn't about to say anything. That's why I suggested adding printks > and trying it again ;-) > Yeah, when a simple printk doesn't work, you know there's something idiotic going on. Thanks for the tip ;-) Tom > -- Steve