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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 02080C433F5 for ; Tue, 12 Oct 2021 16:34:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CDEFB61074 for ; Tue, 12 Oct 2021 16:34:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229631AbhJLQgm (ORCPT ); Tue, 12 Oct 2021 12:36:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60092 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229495AbhJLQgm (ORCPT ); Tue, 12 Oct 2021 12:36:42 -0400 Received: from mx3.uni-regensburg.de (mx3.uni-regensburg.de [IPv6:2001:638:a05:137:165:0:4:4e79]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44E24C061570 for ; Tue, 12 Oct 2021 09:34:40 -0700 (PDT) Received: from mx3.uni-regensburg.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id F17076000057; Tue, 12 Oct 2021 18:34:37 +0200 (CEST) Received: from smtp1.uni-regensburg.de (smtp1.uni-regensburg.de [194.94.157.129]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.uni-regensburg.de", Issuer "DFN-Verein Global Issuing CA" (not verified)) by mx3.uni-regensburg.de (Postfix) with ESMTPS id D1C506000051; Tue, 12 Oct 2021 18:34:37 +0200 (CEST) From: "Andreas K. Huettel" To: Paul Menzel , Jesse Brandeburg Cc: netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, Jakub Kicinski Subject: Re: [EXT] Re: [Intel-wired-lan] Intel I350 regression 5.10 -> 5.14 ("The NVM Checksum Is Not Valid") [8086:1521] Date: Tue, 12 Oct 2021 18:34:35 +0200 Message-ID: <2801801.e9J7NaK4W3@kailua> Organization: Universitaet Regensburg In-Reply-To: References: <1823864.tdWV9SEqCh@kailua> <2944777.ktpJ11cQ8Q@pinacolada> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org > > The messages easily identifiable are: > > > > huettel@pinacolada ~/tmp $ cat kernel-messages-5.10.59.txt |grep igb > > Oct 5 15:11:18 dilfridge kernel: [ 2.090675] igb: Intel(R) Gigabit Ethernet Network Driver > > Oct 5 15:11:18 dilfridge kernel: [ 2.090676] igb: Copyright (c) 2007-2014 Intel Corporation. > > Oct 5 15:11:18 dilfridge kernel: [ 2.090728] igb 0000:01:00.0: enabling device (0000 -> 0002) > > This line is missing below, it indicates that the kernel couldn't or > didn't power up the PCIe for some reason. We're looking for something > like ACPI or PCI patches (possibly PCI-Power management) to be the > culprit here. > So I did a git bisect from linux-v5.10 (good) to linux-v5.14.11 (bad). The result was: dilfridge /usr/src/linux-git # git bisect bad 6381195ad7d06ef979528c7452f3ff93659f86b1 is the first bad commit commit 6381195ad7d06ef979528c7452f3ff93659f86b1 Author: Rafael J. Wysocki Date: Mon May 24 17:26:16 2021 +0200 ACPI: power: Rework turning off unused power resources [...] I tried naive reverting of this commit on top of 5.14.11. That applies nearly cleanly, and after a reboot the additional ethernet interfaces show up with their MAC in the boot messages. (Not knowing how safe that experiment was, I did not go further than single mode and immediately rebooted into 5.10 afterwards.) -- PD Dr. Andreas K. Huettel Institute for Experimental and Applied Physics University of Regensburg 93040 Regensburg Germany e-mail andreas.huettel@ur.de http://www.akhuettel.de/ http://www.physik.uni-r.de/forschung/huettel/