From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6FF7523A9AE for ; Wed, 26 Feb 2025 21:58:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740607124; cv=none; b=iwrArTaI5Mqd2LnymitAHFqzPJLJ8+Rbsgj0fueT+OJ8add6VH0WCoIFy+B6K3bJoVnODkhjW5YnNyfshaW8OuGIOuNTQWvIhHk0A9cAS25kcaX9MUZUJVOwZLYGdgjubHoCVBYqPbfole66eu9ZPgM8MN+lOdf+vpfV/yx/jVk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740607124; c=relaxed/simple; bh=dGVQwofA2mF3rCKefgJ6shQpUqK/R0gqUE4OsUCwJis=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=g8sP4hQUclqv9pDTHfaSkO6g9HCJrkjRJjv/iwrxrwzMIA4GSy6fixdojbrPV8eZ+p8JtJRsK3Rb0uIGBB7yvRQwOnmjwnuCL/y/v2Aa70ofppUbNqzbXNCiQ3MrHxsqN6kkSbrXIcDAb+k6v2jguUFH7VTWSn7r41ENS0CseDM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TEtlYjj1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TEtlYjj1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BB06EC4CED6; Wed, 26 Feb 2025 21:58:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1740607123; bh=dGVQwofA2mF3rCKefgJ6shQpUqK/R0gqUE4OsUCwJis=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=TEtlYjj1OZQCmUcSCvOaivbTUHKz9geYajadS3yxe94LJMVyvSHSFEC1feWpPa4HY cOwxr4QLepMbzplAFtAY+uXikfJdJ/lXWJWotY+dZuX4MQ8OCByj/F8s/97X9NXoS8 sohIG5ahZiceFKwaXSqoXKzAcFVOJtiGyjneMrRmrtsYfiSbPTQC5qegBuQl90+989 b09DTsBapvTxLrBMhKFF/mslrn9GUOpyYLp7QyhbyEJKEgtkgQuo8Qe+Ax5oC+5TQK pUN7AS0hq9OptVcuWPTLIvqF4D2CVwuaBDt7FLwKoa+YI1rzWQnTJ0z7PVrdJwZT4H dy+BXWrIMTDiQ== Date: Wed, 26 Feb 2025 15:58:42 -0600 From: Bjorn Helgaas To: "Borah, Chaitanya Kumar" Cc: "bhelgaas@google.com" , "intel-gfx@lists.freedesktop.org" , "intel-xe@lists.freedesktop.org" , "linux-pci@vger.kernel.org" , "Kurmi, Suresh Kumar" , "Saarinen, Jani" Subject: Re: Regression on linux-next (next-20250221) Message-ID: <20250226215842.GA560520@bhelgaas> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Wed, Feb 26, 2025 at 07:36:19PM +0000, Borah, Chaitanya Kumar wrote: > Hello Bjorn, > > Hope you are doing well. I am Chaitanya from the linux graphics team in Intel. > > This mail is regarding a regression we are seeing in our CI runs[1] on linux-next repository. > > Since the version next-20250221 [2], we are seeing that some of the machines in our CI are unable to connect through ssh (and therefore unable to participate). > Looking at the logs we see this. > > ````````````````````````````````````````````````````````````````````````````````` > [ 5.838496] e1000e: Intel(R) PRO/1000 Network Driver > [ 5.838515] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. > [ 5.838737] e1000e 0000:01:00.0: Disabling ASPM L1 > [ 5.840055] e1000e 0000:01:00.0: probe with driver e1000e failed with error -12 > ````````````````````````````````````````````````````````````````````````````````` > After bisecting the tree, the following patch [3] seems to be the first "bad" > commit > > ````````````````````````````````````````````````````````````````````````````````````````````````````````` > commit 7d90d8d2bb1bfff8b33acbb6f815cba6f5250fad > Author: Bjorn Helgaas mailto:bhelgaas@google.com > Date:   Fri Feb 14 18:03:00 2025 -0600 > >     PCI: Avoid pointless capability searches > >     Many of the save/restore functions in the pci_save_state() and >     pci_restore_state() paths depend on both a PCI capability of the device and >     a pci_cap_saved_state structure to hold the configuration data, and they >     skip the operation if either is missing. > ````````````````````````````````````````````````````````````````````````````````````````````````````````` > > We verified that if we revert the patch the issue is not seen. Sorry about this; this patch was dropped in next-20250224 Bjorn