Re: [PATCH] Bogus LBA48 drives

[Geert Uytterhoeven]

On Wed, 31 Mar 2004, Jeff Garzik wrote:
> Andries Brouwer wrote:
> > Hmm. I read in my copy of ATA7:
> >
> >  6.16.55 Words (103:100): Maximum user LBA for 48-bit Address feature set
> >  Words (103:100) contain a value that is one greater than the maximum LBA
> >  in user accessable space when the 48-bit Addressing feature set is supported.
> >  The maximum value that shall be placed in this field is 0000FFFFFFFFFFFFh.
> >  Support of these words is mandatory if the 48-bit Address feature set is supported.
> >
> > Do you read differently?
>
> The errata is, one needs to check that field for zero, and use the other
> one if so...

Which is not sufficient for `my' drives, since I get disk errors if I just use
the other capacity field and don't disable LBA48 completely.

I'll check the ATA specs myself, if I find some time...

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds
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