Re: Using %cr2 to reference "current"

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Nov 06 2001 - 12:46:05 EST


> 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

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Wed Nov 07 2001 - 21:00:31 EST