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=-4.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED, USER_AGENT_MUTT autolearn=unavailable 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 79796C07E85 for ; Tue, 4 Dec 2018 00:10:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 40F6A20851 for ; Tue, 4 Dec 2018 00:10:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="PQb1RrT1" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 40F6A20851 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726017AbeLDAKL (ORCPT ); Mon, 3 Dec 2018 19:10:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:59514 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725909AbeLDAKL (ORCPT ); Mon, 3 Dec 2018 19:10:11 -0500 Received: from localhost (unknown [69.71.4.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 69AA220850; Tue, 4 Dec 2018 00:10:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1543882210; bh=LqMDhAqIFqnVtVKSE73p4MrjOihxgMCZ9SzAiAV0l5o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=PQb1RrT1fu6murp45DYH3wu/V6m1S8MQg6k0JxEFQEVfTW7JFUU4vRifoeEM9pRHk MaS7HsZIkiUm9K6OvchipEPlRrJFiwETClGnrC9Ik7pSRB6q2bVzROz6vVVe0Y1abM zg6UIoFHZH/XzQbbggcBsvCMnSZsbZEAJNeHm0SI= Date: Mon, 3 Dec 2018 18:10:09 -0600 From: Bjorn Helgaas To: "Rafael J. Wysocki" Cc: Linux Kernel Mailing List , linux-pci@vger.kernel.org, ptalbert@redhat.com Subject: Re: [Bug] SD card reader in Acer Aspire S5 broken in 4.20-rc Message-ID: <20181204001009.GA85090@google.com> References: <2960808.4YCFhzuD0k@aspire.rjw.lan> <1675729.7aZxPkvRd8@aspire.rjw.lan> <20181127202514.GB112381@google.com> <3669527.fZMjlSGqLg@aspire.rjw.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 28, 2018 at 02:05:21PM -0600, Bjorn Helgaas wrote: > On Wed, Nov 28, 2018 at 6:13 AM Rafael J. Wysocki wrote: > > On Tuesday, November 27, 2018 9:25:14 PM CET Bjorn Helgaas wrote: > > > On Mon, Nov 26, 2018 at 11:37:20PM +0100, Rafael J. Wysocki wrote: > > > > On Monday, November 26, 2018 7:03:58 PM CET Rafael J. Wysocki wrote: > > > > > Hi Bjorn, > > > > > > > > > > The SD card reader in my Acer Aspire S5 doesn't work with 4.20-rc. > > > > > > > > > > Here's what lspci -v says about it (in a bad kernel): > > > > > > > > > > 02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader > > > > > (rev 01) > > > > > Subsystem: Acer Incorporated [ALI] Device 0704 > > > > > Flags: bus master, fast devsel, latency 0, IRQ 35 > > > > > Memory at d9001000 (32-bit, non-prefetchable) [size=4K] > > > > > Capabilities: [40] Power Management version 3 > > > > > Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+ > > > > > Capabilities: [70] Express Endpoint, MSI 00 > > > > > Capabilities: [100] Advanced Error Reporting > > > > > Capabilities: [140] Device Serial Number 00-00-00-01-00-4c-e0-00 > > > > > Kernel driver in use: rtsx_pci > > > > > Kernel modules: rtsx_pci > > > > > > Thanks a lot for bisecting this! > > > > > > With a good kernel (v4.19 or v4.20-rc with 17c91487364f reverted), > > > would you mind collecting "lspci -vv" output, the dmesg log with > > > "pci=earlydump", and the FADT dump? > > > > All of the information is attached to the BZ entry at > > > > https://bugzilla.kernel.org/show_bug.cgi?id=201801 > > Thanks! I hope Patrick has a chance to look at this. Per the > bugzilla mentioned in 17c91487364f, it fixes a problem with a custom > proprietary PCIe device, and there's a lot of good detailed analysis > there, so hopefully we can figure out a way to address both > situations. I queued up a revert on for-linus, since we haven't made any progress on this yet. I'll be on vacation much of this week, but I want to get the revert (or better, a fix if we can find one) in before -rc6 comes out next Sunday. If we figure out a fix before then, I'll drop the revert and use the fix instead. Bjorn