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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Erik Mouw <erik@harddisk-recovery.com>
Cc: Meelis Roos <mroos@linux.ee>,
	Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: libATA  PATA status report, new patch
Date: Fri, 10 Feb 2006 15:46:37 +0000	[thread overview]
Message-ID: <1139586397.12521.3.camel@localhost.localdomain> (raw)
In-Reply-To: <20060210120157.GB28676@harddisk-recovery.com>

On Gwe, 2006-02-10 at 13:01 +0100, Erik Mouw wrote:
> Alan, can this related to LBA48 compatibility? I remember having
> problems with this when Andre Hedrick added LBA48 support around
> linux-2.4.19. The drive (Maxtor 4D040H2) advertised it supported LBA48,
> but the chipset (Ali 1543 rev C3, IIRC) didn't.

I don't think so. There is code to handle it. More likely the tuning
code is wrong and loaded incorrect values. We identify at PIO0 then
select modes.

Best way to test:

Boot with mwdma/udma set to zero in "info" block

then

Boot with only pio 0 claimed as supported and the mode setting logic 
commented out.


That gives a good idea what broke.


  reply	other threads:[~2006-02-10 15:44 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-02-06 16:46 libATA PATA status report, new patch Alan Cox
2006-02-06 20:04 ` Meelis Roos
2006-02-06 22:53   ` Alan Cox
2006-02-07  8:43 ` Meelis Roos
2006-02-07 11:05   ` Alan Cox
2006-02-07 11:10     ` Meelis Roos
2006-02-07 11:29       ` Ed Sweetman
2006-02-07 11:32         ` Meelis Roos
2006-02-07 11:38       ` Alan Cox
2006-02-07 15:04         ` Alan Cox
2006-02-07 17:02           ` Meelis Roos
2006-02-07 19:38             ` Duplicated SCSI messages (Was: Re: libATA PATA status report, new patch) Tomasz Kłoczko
2006-02-07 17:30           ` libATA PATA status report, new patch Meelis Roos
2006-02-07 17:50           ` Meelis Roos
2006-02-08 13:31             ` Alan Cox
2006-02-08  7:42           ` Meelis Roos
2006-02-08 18:28           ` Meelis Roos
2006-02-09 15:31             ` Alan Cox
2006-02-09 21:12               ` Meelis Roos
2006-02-10 12:01                 ` Erik Mouw
2006-02-10 15:46                   ` Alan Cox [this message]
2006-02-12 18:07 ` Kyle Moffett
2006-07-07 16:29 ` Wakko Warner
2006-07-07 16:52   ` Alan Cox

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