From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754569AbXHZSvB (ORCPT ); Sun, 26 Aug 2007 14:51:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751181AbXHZSuw (ORCPT ); Sun, 26 Aug 2007 14:50:52 -0400 Received: from zer09.zwecker.de ([88.198.57.35]:55006 "EHLO zer09.zwecker.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751248AbXHZSuv (ORCPT ); Sun, 26 Aug 2007 14:50:51 -0400 X-Greylist: delayed 1154 seconds by postgrey-1.27 at vger.kernel.org; Sun, 26 Aug 2007 14:50:50 EDT Subject: PROBLEM: Suspend corrupts bios clock since 2.6.21 From: Andreas Steffan To: linux-pm@lists.linux-foundation.org Cc: "Rafael J. Wysocki" , pavel@suse.cz, linux-kernel@vger.kernel.org Content-Type: text/plain Date: Sun, 26 Aug 2007 20:31:00 +0200 Message-Id: <1188153060.14603.31.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.10.3 (2.10.3-2.fc7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hallo everybody, I am running fedora core 7 on my Dell latitude D810 notebook (BIOS rev A05). Since 2.6.21 I found that suspending (to disk and to ram) corrupts the bios clock most of the time (not always). The corruption is happening during suspend. When I enter the system bios right after I switch the system back on, I find the bios clock is set to a time far in the future (many years). I guess that problem is related to the clock changes that where introduced with 2.6.21. Please let me know if you want me to provide further information to get this problem fixed. If there is a known quirk to work around this problem, I would really appreciate a hint. PS: I have not yet tried 2.6.22.4-65.fc7, but the latest 2.6.22 kernel before showed the same behaviour for me. -- regards Andreas +-----------------------------------------------------------+ Andreas Steffan email: a.steffan@deas-online.de Hamburg, Germany mobil: +49179 3903615 +-----------------------------------------------------------+ In theory, practice and theory are the same, but in practice they are different -- Larry McVoy