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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,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 7D512C4346E for ; Thu, 24 Sep 2020 09:23:57 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E3F6A22208 for ; Thu, 24 Sep 2020 09:23:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3F6A22208 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 6605E2E0EB; Thu, 24 Sep 2020 09:23:56 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BHLt6HQ1jpAO; Thu, 24 Sep 2020 09:23:54 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id CE7812045D; Thu, 24 Sep 2020 09:23:54 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id B13D4C0859; Thu, 24 Sep 2020 09:23:54 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 95887C0051 for ; Thu, 24 Sep 2020 09:23:52 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id 8213D2E0D8 for ; Thu, 24 Sep 2020 09:23:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id qS6gQ8+vKUyO for ; Thu, 24 Sep 2020 09:23:51 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from theia.8bytes.org (8bytes.org [81.169.241.247]) by silver.osuosl.org (Postfix) with ESMTPS id B27382045D for ; Thu, 24 Sep 2020 09:23:51 +0000 (UTC) Received: by theia.8bytes.org (Postfix, from userid 1000) id 25EE7401; Thu, 24 Sep 2020 11:23:50 +0200 (CEST) Date: Thu, 24 Sep 2020 11:23:48 +0200 From: Joerg Roedel To: Jerry Snitselaar Subject: Re: kdump boot failing with IVRS checksum failure Message-ID: <20200924092348.GI27174@8bytes.org> References: <87o8lzvtzp.fsf@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <87o8lzvtzp.fsf@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Hi Jerry, On Mon, Sep 21, 2020 at 11:56:42AM -0700, Jerry Snitselaar wrote: > We are seeing a kdump kernel boot failure in test on an HP DL325 Gen10 > and it was tracked down to 387caf0b759a ("iommu/amd: Treat per-device > exclusion ranges as r/w unity-mapped regions"). Reproduced on 5.9-rc5 > and goes away with revert of the commit. There is a follow on commit > that depends on this that was reverted as well 2ca6b6dc8512 ("iommu/amd: > Remove unused variable"). I'm working on getting system access and want > to see what the IVRS table looks like, but thought I'd give you heads > up. Thanks for looking into this, we really need to find the root-cause to avoid the revert. Thanks, Joerg _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu