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=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 98C82C433E0 for ; Sat, 13 Mar 2021 22:09:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 728A464EAE for ; Sat, 13 Mar 2021 22:09:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234806AbhCMWIe (ORCPT ); Sat, 13 Mar 2021 17:08:34 -0500 Received: from mail.kernel.org ([198.145.29.99]:49352 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234758AbhCMWIL (ORCPT ); Sat, 13 Mar 2021 17:08:11 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id ED6D664EB3; Sat, 13 Mar 2021 22:08:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615673291; bh=jaKwIz5Q9rt1m/yRb9UztFHybMZGC1BZH4s2vMT77Dc=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=luoFmZ4/zLE9N+60M9HQi8u7VQetBSguPK1JjYkwMjx/A3CpWKvZEj/n++rpwLclK ChRwNReJsoqfkOfbfRpMSGvrZBqZ+3dOik88L8/4ZCjXCEBPMNYfAL7VvpAU6VKsIO IVlWEHJx5edYwJTp/E2sxNDefB7EZAWU2HflfEtoGg1OGdsbzsDfkjOrN1OhalvwYD f9wo8QK5VZwlZPAE8IbrjoQ+H4oAdunt5uDBQh21Ox/1FvMeqJm/wC1v6ncnQR8/ej AW38yTTXDBiSno+d9/UKMAne6vn2IsoJFas/CiE6fneU2owbBd3ocjoh/djbINcOTy XTY6XrjngqlBg== Date: Sat, 13 Mar 2021 16:08:09 -0600 From: Bjorn Helgaas To: Erik Quaeghebeur Cc: linux-pci@vger.kernel.org Subject: Re: [Bug 212261] New: pci 0000:00:00.2: can't derive routing for PCI INT A Message-ID: <20210313220809.GA2401557@bjorn-Precision-5520> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Sat, Mar 13, 2021 at 01:19:39PM +0000, bugzilla-daemon@bugzilla.kernel.org wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=212261 > > Bug ID: 212261 > Summary: pci 0000:00:00.2: can't derive routing for PCI INT A > Product: Drivers > Version: 2.5 > Kernel Version: 5.10.22 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: PCI > Assignee: drivers_pci@kernel-bugs.osdl.org > Reporter: kernelbugs@equaeghe.nospammail.net > Regression: No > > I'm on a Lenovo T14 AMD, with a Ryzen 4750U. In the logs, I find > > pci 0000:00:00.2: AMD-Vi: IOMMU performance counters supported > pci 0000:00:00.2: can't derive routing for PCI INT A > pci 0000:00:00.2: PCI INT A: not connected > > where the last two lines are warnings. Various bugreports related to this can > be found elsewhere. > > I guess there is either something wrong with the hardware/firmware or with the > kernel. I'd hope this warning can be fixed. Feel free to ask for more > information. Thanks for the report! What device is 00:00.2? Does it work? If not, did it ever work, i.e., is this a regression? If it's a regression, what's the newest kernel you know of where it did work? Can you please attach a complete dmesg log and output of "sudo lspci -vvv" to the bugzilla? Can you also add links to any related bug reports you're aware of? Bjorn