From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751416Ab0LKTaO (ORCPT ); Sat, 11 Dec 2010 14:30:14 -0500 Received: from ogre.sisk.pl ([217.79.144.158]:46236 "EHLO ogre.sisk.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751293Ab0LKTaM (ORCPT ); Sat, 11 Dec 2010 14:30:12 -0500 From: "Rafael J. Wysocki" To: Stefan Richter Subject: Re: [linux-pm] 2.6.37-rc5, pata_atiixp, DVD-ROM: kernel log flooded with "rpm_resume flags 0x4", "rpm_resume returns 1" Date: Sat, 11 Dec 2010 20:29:08 +0100 User-Agent: KMail/1.13.5 (Linux/2.6.37-rc5+; KDE/4.4.4; x86_64; ; ) Cc: linux-pm@lists.linux-foundation.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org References: <20101211173234.77617d3a@stein> In-Reply-To: <20101211173234.77617d3a@stein> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <201012112029.08895.rjw@sisk.pl> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Saturday, December 11, 2010, Stefan Richter wrote: > Hi, > > I just booted from 2.6.36 (without PM debugging configured) into > 2.6.37-rc5 (with PM debugging enabled). There is endless log spam like > this: I guess you have either CONFIG_PM_VERBOSE set or CONFIG_PM_DEBUG unset. Which is the case? Rafael > Dec 11 17:11:31 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:31 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:31 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:31 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:31 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:31 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:33 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:35 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:37 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:37 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:37 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:37 stein kernel: scsi host6: rpm_resume returns 1 > Dec 11 17:11:37 stein kernel: scsi host6: rpm_resume flags 0x4 > Dec 11 17:11:37 stein kernel: scsi host6: rpm_resume returns 1 > > Why is rpm_resume performed 6 times every two seconds? > > host6 is pata_atiixp with an: > > 00:14.1 IDE interface: ATI Technologies Inc SB700/SB800 IDE Controller > (prog-if 8a [Master SecP PriP]) > > # grep . /sys/class/scsi_host/host6/power/* > /sys/class/scsi_host/host6/power/async:enabled > grep: /sys/class/scsi_host/host6/power/autosuspend_delay_ms: Input/output error > /sys/class/scsi_host/host6/power/control:auto > /sys/class/scsi_host/host6/power/runtime_active_kids:0 > /sys/class/scsi_host/host6/power/runtime_active_time:0 > /sys/class/scsi_host/host6/power/runtime_enabled:disabled > /sys/class/scsi_host/host6/power/runtime_status:unsupported > /sys/class/scsi_host/host6/power/runtime_suspended_time:0 > /sys/class/scsi_host/host6/power/runtime_usage:0 > > Attached to it is one device: > > Host: scsi6 Channel: 00 Id: 00 Lun: 00 > Vendor: PLEXTOR Model: DVD-ROM PX-130A Rev: 1.01 > Type: CD-ROM ANSI SCSI revision: 05 > > # grep . /sys/class/scsi_host/host6/device/target6\:0\:0/6\:0\:0\:0/power/* > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/async:enabled > grep: /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/autosuspend_delay_ms: Input/output error > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/control:on > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/runtime_active_kids:0 > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/runtime_active_time:2689146 > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/runtime_enabled:forbidden > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/runtime_status:active > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/runtime_suspended_time:0 > /sys/class/scsi_host/host6/device/target6:0:0/6:0:0:0/power/runtime_usage:2 >