From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758002Ab3ANV0S (ORCPT ); Mon, 14 Jan 2013 16:26:18 -0500 Received: from mout.gmx.net ([212.227.17.20]:51774 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756677Ab3ANV0Q (ORCPT ); Mon, 14 Jan 2013 16:26:16 -0500 X-Authenticated: #5108953 X-Provags-ID: V01U2FsdGVkX18T34cuzaAT/0pjHwEWvQvIlMXNyMGkPEVrdTzPi9 qH84Ri+Do6Z9Wd Message-ID: <50F477F5.8070403@gmx.de> Date: Mon, 14 Jan 2013 22:26:13 +0100 From: =?UTF-8?B?VG9yYWxmIEbDtnJzdGVy?= User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130111 Thunderbird/17.0.2 MIME-Version: 1.0 To: Linux Kernel CC: ibm-acpi-devel@lists.sourceforge.net Subject: / is remounted when the power cable is plugged in/out X-Enigmail-Version: 1.5 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Y-GMX-Trusted: 0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org At my ThinkPad T420 I get these syslog messages when I plug off the power cable of a system booted from an external USB drive (root / is /dev/sdb3): 2013-01-14T22:20:46.028+01:00 n22 kernel: ata1.00: failed to get Identify Device Data, Emask 0x1 2013-01-14T22:20:46.029+01:00 n22 kernel: ata1.00: failed to get Identify Device Data, Emask 0x1 2013-01-14T22:20:46.029+01:00 n22 kernel: ata1.00: configured for UDMA/100 2013-01-14T22:20:46.029+01:00 n22 kernel: ata1: EH complete 2013-01-14T22:20:46.029+01:00 n22 kernel: sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA 2013-01-14T22:20:46.083+01:00 n22 kernel: thinkpad_acpi: unknown possible thermal alarm or keyboard event received 2013-01-14T22:20:46.083+01:00 n22 kernel: thinkpad_acpi: unhandled HKEY event 0x6040 2013-01-14T22:20:46.083+01:00 n22 kernel: thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@lists.sourceforge.net 2013-01-14T22:20:46.085+01:00 n22 kernel: thinkpad_acpi: EC reports that Thermal Table has changed 2013-01-14T22:20:46.000+01:00 n22 logger: ACPI event : ibm/hotkey HKEY 00000080 00006040 2013-01-14T22:20:46.000+01:00 n22 logger: ACPI event : ibm/hotkey HKEY 00000080 00006030 2013-01-14T22:20:46.305+01:00 n22 kernel: EXT4-fs (sdb3): re-mounted. Opts: commit=600 and when I plug in the power cable I get the similar events : 2013-01-14T22:20:51.476+01:00 n22 kernel: ata1.00: failed to get Identify Device Data, Emask 0x1 2013-01-14T22:20:51.477+01:00 n22 kernel: ata1.00: failed to get Identify Device Data, Emask 0x1 2013-01-14T22:20:51.477+01:00 n22 kernel: ata1.00: configured for UDMA/100 2013-01-14T22:20:51.477+01:00 n22 kernel: ata1: EH complete 2013-01-14T22:20:51.477+01:00 n22 kernel: sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA 2013-01-14T22:20:51.514+01:00 n22 kernel: thinkpad_acpi: unknown possible thermal alarm or keyboard event received 2013-01-14T22:20:51.514+01:00 n22 kernel: thinkpad_acpi: unhandled HKEY event 0x6040 2013-01-14T22:20:51.514+01:00 n22 kernel: thinkpad_acpi: please report the conditions when this event happened to ibm-acpi-devel@lists.sourceforge.net 2013-01-14T22:20:51.516+01:00 n22 kernel: thinkpad_acpi: EC reports that Thermal Table has changed 2013-01-14T22:20:51.000+01:00 n22 logger: ACPI event : ibm/hotkey HKEY 00000080 00006040 2013-01-14T22:20:51.000+01:00 n22 logger: ACPI event : ibm/hotkey HKEY 00000080 00006030 2013-01-14T22:20:52.170+01:00 n22 kernel: EXT4-fs (sdb3): re-mounted. Opts: commit=0 b/c of the unknown event 0x6040 the ibm acpi list is Cc'ed, but what makes me really wondering is why / is remounted. -- MfG/Sincerely Toralf Förster pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3