Re: Problems with APM suspend and ext3

Stephen C. Tweedie
2001-12-05T14:59:47Z

Hi,

On Fri, Nov 30, 2001 at 03:59:03PM -0800, Andrew Morton wrote:
> Kamil Iskra wrote:
> >
> > I've long since known that the
> > suspends are not completely reliable, even with ext2, particularly if
> > there was some disk activity going to right before or during a suspend.
>
> Yup. It seems that your BIOS is being asked to suspend all devices
> while there is still disk IO being performed. And it refuses to
> suspend because the disk is still active.

Yep. I'd still like to know exactly what the circumstances around
this are: just what are the constraints which apm requires us to
observe for successful suspend? I've never had a laptop fail to
suspend due to this sort of problem with ext3, so it's obviously
different from one apm implementation to the next.

Cheers,
Stephen