linux-kernel - Re: What's in libata-dev.git

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Date:	Wed, 04 Oct 2006 13:57:22 -0400
From:	Mark Lord <lkml@....ca>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
Cc:	Jeff Garzik <jeff@...zik.org>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, Andrew Morton <akpm@...l.org>,
	Linus Torvalds <torvalds@...l.org>
Subject: Re: What's in libata-dev.git

Sergei Shtylyov wrote:
> ..
>> Jeff Garzik:
> [...]
>>       [ATA] Increase lba48 max-sectors from 200 to 256.
> 
>    So was it for LBA28 or for LBA48?
>    As for LBA28, it might be quite dangerous. Particularly, I know that 
> IBM drives used to mistreated 256 as 0 in the past (bumped into that on 
> a 8-year old drive which is still alive though).
..
>The exact model was IBM DHEA-34331. 

I've been travelling for the past month, so pardon the late tuning in here.
I've *never* encountered a drive that had this problem.
Controllers, yes, and those are easily dealt with in the chipset drivers.

But never drives.  Not since 1992 when I first took up Linux IDE stuff.

I have some 7-year old IBM drives here, and they certainly don't have
this problem either (but they do have working TCQ etc..).

I suspect Sergei simply had a bad controller card at the time.

Cheers
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