S3 experience on Thinkpad 570E

[John Baldwin]

On Monday 27 December 2004 05:56 pm, Nate Lawson wrote:
> Andrea Campi wrote:
> > Hi,
> >
> > I've tried using S3 on -CURRENT, more in response to Nate's request than
> > out of need, since S4BIOS is working great on this PC.
> >
> > In a nutshell, acpiconf -s3 powers down; on powerup however the machine
> > is deadly slow. I replicated this with a stripped down kernel; the only
> > thing that was evidently wrong is that the clock slowed down from 1000 to
> > around 250 interrupts per second.
>
> It sounds like the clock interrupt source is not getting saved/restored
> properly if it slows after a resume.  I am not sure how to solve this.
> Perhaps John has something to add.

Currently on i386 the clocks are not real new-bus devices and I'm not sure if 
they have proper resume support.  I think we do have some sort of hardcoded 
call to the clock code on i386 to resume the clocks but I'm not sure.

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org