Followup to: <E16LTvs-00016I-00@the-village.bc.nu>
By author: Alan Cox <alan@lxorguk.ukuu.org.uk>
In newsgroup: linux.dev.kernel
>
> > 2. Isn't the boundary at 2^30 really irrelevant and the three "correct"
> > zones are (0 - 2^24-1), (2^24 - 2^32-1) and (2^32 - 2^36-1)?
>
> Nope. The limit for directly mapped memory is 2^30.
>
2^30-2^27 to be exact (assuming a 3:1 split and 128MB vmalloc zone.)
-hpa
-- <hpa@transmeta.com> at work, <hpa@zytor.com> in private! "Unix gives you enough rope to shoot yourself in the foot." http://www.zytor.com/~hpa/puzzle.txt <amsp@zytor.com> - 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/
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