Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp5345310ybl; Tue, 10 Dec 2019 04:36:18 -0800 (PST) X-Google-Smtp-Source: APXvYqwA/vVmEmKgF25VrT2i/xwg8oJGQIiKzaBd+UsNgr+tjgqFrkgzfzPy2ZJokvaE7UC3E42i X-Received: by 2002:aca:55cc:: with SMTP id j195mr3818119oib.22.1575981378475; Tue, 10 Dec 2019 04:36:18 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1575981378; cv=none; d=google.com; s=arc-20160816; b=ZN3dS/thIBVIVkXLZC47V7woTYiqXLqoVrX2TjWobSupDASqcpoCVSMybp3qiqwDca qQSm2JTe+nEq77ZHpfBJZhIam+0o+6Wm1QxW2btHmRf2JyLpj6xlIG1+gbtSVQSurTKG BY1knDSVl7Ru+Jv/eWNaUooQMwN0pUG3CDy6Xrllvh4GmZU6MDJYXqq2d/zkjOfwb0TI BzM5sscqVXhIxgHzybGe2UZA3vn19O29OKlAmLs5A+9w9iSDEYoj3yNN9NHk7HoBSJzY yaPqOGHIa658CrWVo2YvWL+VM3hdsO1ox/m9QxqLeswJ/iblsEr3P7x8OvUrv8eLVDzB Uk1A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:organization:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=W7JQnKPIv8VzUDUk+/AKTcePByTLhDZv1ZMhyY4aXeI=; b=aqady6HT4aZmz3VhKSQtPBmFtFlQwvLkICHqNUqJhvu3ecQ3eXEcLbxga1D1fwEK8V B8n8bPeqktJcex68EGvdW18MINiPyn0uheprT/cSImg9mARBm6pM1ruU7XMyzfwjRg6+ g8l6an1siUi85TXq8ZkZRTFlbHxnZlCk4jjM9ronY6ZvN7rcc7xnZJUHJvHS/CFHIFl1 EcECDnZrZQ2lcdvzLBj/a/uKrAfS6ytnNwj2UXwW5m3Azv1EgPB5FrKvhrLfGenDyZGC WAMOynsyophMeuUUccyn7UXz6zcq04cv0QHEmDjtIFInZvJ92PnraBSl191/3V+GO6+f EmGQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id n11si1748344otk.290.2019.12.10.04.36.06; Tue, 10 Dec 2019 04:36:18 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727793AbfLJMeN (ORCPT + 99 others); Tue, 10 Dec 2019 07:34:13 -0500 Received: from mga07.intel.com ([134.134.136.100]:31868 "EHLO mga07.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727325AbfLJMeM (ORCPT ); Tue, 10 Dec 2019 07:34:12 -0500 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Dec 2019 04:34:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,299,1571727600"; d="scan'208";a="220214100" Received: from lahna.fi.intel.com (HELO lahna) ([10.237.72.163]) by fmsmga001.fm.intel.com with SMTP; 10 Dec 2019 04:34:09 -0800 Received: by lahna (sSMTP sendmail emulation); Tue, 10 Dec 2019 14:34:08 +0200 Date: Tue, 10 Dec 2019 14:34:08 +0200 From: "mika.westerberg@linux.intel.com" To: Nicholas Johnson Cc: Bjorn Helgaas , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" Subject: Re: Linux v5.5 serious PCI bug Message-ID: <20191210123408.GD2665@lahna.fi.intel.com> References: <20191209131239.GP2665@lahna.fi.intel.com> <20191210072800.GY2665@lahna.fi.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 10, 2019 at 12:00:23PM +0000, Nicholas Johnson wrote: > The following is the culprit responsible for the issues: > > commit 586bc4aab878efcf672536f0cdec3d04b6990c94 > Author: Alex Deucher > Date: Fri Nov 22 16:43:50 2019 -0500 > > ALSA: hda/hdmi - fix vgaswitcheroo detection for AMD > > It is playing with PCI devices. Clearly they did not consider > hot-removal. I am guessing it is seeing the audio PCI func of the AMD > card in that Thunderbolt eGPU enclosure. > > I will collect information, make a bugzilla report and contact the AMD > team. If anybody wants to be cc'd in then let me know. Sorry for > bothering you and Bjorn with something which actually has nothing > directly to do with the PCI subsystem or Thunderbolt. No problem. Thanks for taking time to bisect the issue.