Re: Using %cr2 to reference "current"

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 6 Nov 2001 17:46:05 +0000 (GMT)

> We pretty much know the _theory_ is not correct, just by virtue of
> depending on non-architected behaviour. The only thing -ac can do is
> test whether it works in practice. Which is a totally different thing.

Yep

> Especially on x86 chips.

Well so far I've found one laptop that eats %cr2 on APM calls, and we have
some mystery cases. Peter's suggestion of using %fs or %gs looks more
promising at the moment

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