Re: [PATCH] cardbus: revert IO window limit

[Andrew Morton]

On Thu, 22 Jun 2006 09:18:41 -0700 (PDT)
Linus Torvalds <torvalds@xxxxxxxx> wrote:

> 
> 
> On Thu, 22 Jun 2006, Alan Cox wrote:
> >
> > Ar Iau, 2006-06-22 am 00:11 -0700, ysgrifennodd Andrew Morton:
> > > There is something bad happening in there.  Presumably, this patch will
> > > break the ThinkPad 600x series machines again though.
> > > 
> > 
> > Possibly not - remember Linus fixed the "hidden resources" problem with
> > the PIIX bridge chips.
> 
> Right. The IBM thinkpad probably works (well, at least _that_ one: 
> there's tons of different Thinkpads, they have different cardbus 
> controllers, and at least one of them has some other problem).
> 
> However, changing the IO window size just hides the problem on the machine 
> that breaks this time around, and we should really fix _that_, rather than 
> hide it (because otherwise it will break again when we do something else 
> unrelated that just happens to change the order we do things in).
> 

OK, thanks.  All we have on Alessio's machine is "freezes at boot if APM is enabled"
(http://lkml.org/lkml/2006/6/16/33).  Any suggestions as to how to proceed
with that?


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