Re: 2.6.18-rc4 (and earlier): CMOS clock corruption during suspend to disk on i386

From: Rafael J. Wysocki
Date: Wed Aug 09 2006 - 16:02:35 EST

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.

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