linux-kernel - Re: [bisected] Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm

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Message-ID: <49690589.1070809@garzik.org>
Date:	Sat, 10 Jan 2009 15:31:05 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	Sergei Shtylyov <sshtylyov@...mvista.com>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>, Ingo Molnar <mingo@...e.hu>,
	Christian Borntraeger <borntraeger@...ibm.com>,
	linux-ide@...r.kernel.org, lkml <linux-kernel@...r.kernel.org>
Subject: Re: [bisected] Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017
 ata_sff_hsm_move+0x45e/0x750()

Sergei Shtylyov wrote:
>   Correctly indeed? I'm not at all sure it's correct to read an extra 
> 16-bit word off the device when it thinks it's already done with the 
> data transfer. This is not the same as to read 16-bit word and ignore 
> its MSB as it happened. The same concern about the writes... Note that 
> the IDE code doesn't do this...

Nod.  And that gets us back to the original point...

	Jeff



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