Re: S3 test tool (was : Re: Bizarre oops after suspend to RAM (was: Re: Resume from Suspend to RAM))

Pavel Machek
2005-06-14T23:11:15Z

Hi!

> >> >> Do you mean try something like this? Replace the push 0 with push
> >> >> 0x1234 ; push 0x1234 ; pop ; pop and try to figure out which line
> >> >> causes the reboot?
> >> >
> >> > Yep, try pushl $0, popl %eax; if that causes problems, something is
> >> > seriously wrong with stack, otherwise changing flags hurts.
> >>
> >> pushl $0, popl %eax gets the reboot. So it's changing the flags that
> >> is bad?
> >>
> >> What should we try next?
> >
> > ??? You wanted it to reboot? If not, something is wrong with
> > stack. Not sure whats next.
>
> I don't want it to reboot, I guess I got confused. As you say, maybe
> something is wrong with the stack. It's weird that something would be
> wrong with the stack, because the other test to check the
> suspend/resume code path works like a charm, the machine will do the
> fake suspend/resume just fine.

Well, we set up stack few instructions before that. But we do it in
quite a complicated way; could you just put stack at 0x00:0x200 or
something like that? Also test if push alone is enough to kill it.

Pavel
--
teflon -- maybe it is a trademark, but it should not be.

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