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

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Message-Id: <200901101427.06645.borntraeger@de.ibm.com>
Date:	Sat, 10 Jan 2009 14:27:06 +0100
From:	Christian Borntraeger <borntraeger@...ibm.com>
To:	Jeff Garzik <jeff@...zik.org>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Sergei Shtylyov <sshtylyov@...mvista.com>,
	linux-ide@...r.kernel.org, Jeff Garzik <jgarzik@...hat.com>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750()

Am Samstag 10 Januar 2009 schrieb Jeff Garzik:
> Christian Borntraeger wrote:
> > Am Samstag 10 Januar 2009 schrieb Alan Cox:
> >>>    That's the typical REQUEST SENSE command with 18-byte data length.
> >> Which means something has become horribly broken in the core libata 
stack.
> >> An 18 byte inquiry would have 18 bytes as the *last* sg element. That
> >> would therefore not trigger the WARN_ON. Someone has passed an sg list
> >> that isn't properly terminated perhaps ?
> >>
> >> I wonder if the pad code broke this.
> > 
> > I just checked 2.6.28 + PIO32 patch. Its also broken. Whatever caused this 
> > problem did it a while ago.
> 
> Just to be clear, you mean:
> 
> 2.6.28 is OK
> 2.6.28 + PIO32 is broken
> 
> Correct?

Yes.
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