On Mon, Sep 11 2006, Alan Cox wrote:
> Ar Llu, 2006-09-11 am 17:47 +0400, ysgrifennodd Sergei Shtylyov:
> > It's not likely I'll be able to try it. But I'm absolutely sure that drive
> > aborted the read commands with the sector count of 0 (i.e. 256 actually). The
> > exact model was IBM DHEA-34331.
>
> Several people reported this problem when we tried 256 years ago in
> drivers/ide. You might want to do 256 for SATA Jeff but please don't do
> 256 for PATA. Reading specs is too hard for some people ;)
>
> Some drives abort the xfer, some just choked.
Ehm it's 256 now and it has been for a looong time. The few cases I've
seen where people claimed it broke, turned out to be something else.
I've still haven't seen a valid report on this.
It might sound obscure that 0 means 256 sectors, but it's really not a
hidden obscure fact - people do know. I'm all for being conservative
where it matters, but I'm siding with Jeff on this one. I suspect that
Windows uses 256 as well, which basically means that we're in the clear.
--
Jens Axboe
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