From mboxrd@z Thu Jan 1 00:00:00 1970 From: john stultz Subject: Re: 2.6.18-rc4 (and earlier): CMOS clock corruption during suspend to disk on i386 Date: Wed, 09 Aug 2006 13:13:32 -0700 Message-ID: <1155154412.8109.1.camel@localhost.localdomain> References: <200608091426.31762.rjw@sisk.pl> <1155145440.5418.21.camel@localhost.localdomain> <200608092204.13711.rjw@sisk.pl> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from e3.ny.us.ibm.com ([32.97.182.143]:53741 "EHLO e3.ny.us.ibm.com") by vger.kernel.org with ESMTP id S1751352AbWHIUNt (ORCPT ); Wed, 9 Aug 2006 16:13:49 -0400 In-Reply-To: <200608092204.13711.rjw@sisk.pl> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: "Rafael J. Wysocki" Cc: LKML , Linux ACPI , Pavel Machek , Andrew Morton On Wed, 2006-08-09 at 22:04 +0200, Rafael J. Wysocki wrote: > On Wednesday 09 August 2006 19:44, john stultz wrote: > > On Wed, 2006-08-09 at 14:26 +0200, Rafael J. Wysocki wrote: > > > It looks like the CMOS clock gets corrupted during the suspend to disk > > > on i386. I've observed this on 2 different boxes. Moreover, one of them is > > > AMD64-based and the x86_64 kernel doesn't have this problem on it. > > > > > > Also, I've done some tests that indicate the corruption doesn't occur before > > > saving the suspend image. It rather happens when the box is powered off > > > or rebooted (tested both cases). > > > > Hmmm. Could you better describe the corruption you're seeing? > > After I do "echo disk > /sys/power/state" and the system suspends, the > CMOS clock settings, as visible via the BIOS setup, are more or less random. And after resuming does time output the time/date properly, or is it confused as well? thanks -john