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

[Pavel Machek <pavel@ucw.cz>]

Hi!

> >> >> 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.
> 
> Could you send me the code you want me to test, I'd don't know enough
> asm to move the stack.  I tried replacing the line with the comment
> about the ASUS board private stack with a line like, "mov $0x200,
> %sp", but I don't understand it.

mov 0x200, %sp was good idea, but try to zero %ss, too. (xor %eax,
%eax; mov %eax, %ss).
								Pavel

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