Re: How to read xtime

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 26 Feb 1999 17:47:39 +0000 (GMT)

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> Umm if you can write to it atomically, that solves everything.
> And I think I have the (x86) solution.... cmpxchg8b.
>
> It's only an issue on SMP, which means it only matters on Pentium
> and up (linux deosn't support SMP 486's, right?), so we have cmpxchg8b.

Wrong alas.

Alan

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