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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 BB452C433EF for ; Tue, 19 Jun 2018 06:13:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7AB8120661 for ; Tue, 19 Jun 2018 06:13:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7AB8120661 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.de 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 S1756036AbeFSGNA (ORCPT ); Tue, 19 Jun 2018 02:13:00 -0400 Received: from mx2.suse.de ([195.135.220.15]:47445 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751777AbeFSGM6 (ORCPT ); Tue, 19 Jun 2018 02:12:58 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (charybdis-ext-too.suse.de [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 5D14FAF5E; Tue, 19 Jun 2018 06:12:57 +0000 (UTC) Date: Tue, 19 Jun 2018 08:12:57 +0200 Message-ID: From: Takashi Iwai To: "Rafael J. Wysocki" Cc: Noah Davis , ACPI Devel Maling List , Linux Kernel Mailing List Subject: [REGRESSION] 4.17 failed to probe ACPI PnP User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/25.3 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, there seems a regression regarding the probe of ACPI PnP devices. The detailed logs are found in openSUSE bugzilla: https://bugzilla.opensuse.org/show_bug.cgi?id=1098074 In short, since 4.17, the laptop keyboard is lost on ASUS K501UW. Comparing the kernel messages and other logs indicates that the complete lost of ACPI PnP devices: On 4.16: [ 0.390244] pnp: PnP ACPI: found 9 devices On 4.17: [ 0.263266] pnp: PnP ACPI: found 0 devices ... and this leads to the failure of PS/2 keyboard detection due to the missing PNP030b entry as a result. Any hints for debugging this are appreciated. Thanks! Takashi