From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ingo Molnar <mingo@elte.hu>, Jeff Garzik <jeff@garzik.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
linux-ide@vger.kernel.org, Jeff Garzik <jgarzik@redhat.com>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [bisected] Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750()
Date: Sat, 10 Jan 2009 18:10:39 +0300 [thread overview]
Message-ID: <4968BA6F.8050207@ru.mvista.com> (raw)
In-Reply-To: <20090110135731.0da08c90@lxorguk.ukuu.org.uk>
Alan Cox wrote:
>>* Ingo Molnar <mingo@elte.hu> wrote:
>>>build its random kernel and reboot into it (800 MHz P3), so i started a
>>>full automated bisection instead driven from a faster box.
>>and the winner is:
>>| 871af1210f13966ab911ed2166e4ab2ce775b99d is first bad commit
>>| commit 871af1210f13966ab911ed2166e4ab2ce775b99d
>>| Author: Alan Cox <alan@redhat.com>
>>| Date: Mon Jan 5 14:16:39 2009 +0000
>>|
>>| libata: Add 32bit PIO support
>>
>>And the revert below does the trick.
> Unfortunately it only hides the bug - that code doesn't change the sg
> lists being passed, it just catches out anyone who pasts a non divisble
> by four malformed sg list.
All the S/G counts printed out were divisible by 4 (36 for INQUIRY and 96
for REQUSET SENSE). It's the *actual* byte count for the REQUEST SENSE that's
no divisible. The SCSI/ATAPI devices are free to sent less data than requested
on non block transfer commands.
MBR, Sergei
next prev parent reply other threads:[~2009-01-10 15:10 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-09 12:34 todays git: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750() Christian Borntraeger
2009-01-09 12:44 ` Alan Cox
2009-01-09 13:09 ` Christian Borntraeger
2009-01-10 9:09 ` Christian Borntraeger
2009-01-10 10:41 ` Alan Cox
2009-01-10 11:42 ` Christian Borntraeger
2009-01-10 11:49 ` Sergei Shtylyov
2009-01-10 12:21 ` Alan Cox
2009-01-10 13:01 ` Sergei Shtylyov
2009-01-10 13:55 ` Alan Cox
2009-01-10 13:04 ` Christian Borntraeger
2009-01-10 13:14 ` Jeff Garzik
2009-01-10 13:27 ` Christian Borntraeger
2009-01-10 13:51 ` Alan Cox
2009-01-10 21:21 ` Arjan van de Ven
2009-01-10 13:07 ` Ingo Molnar
2009-01-10 13:12 ` Jeff Garzik
2009-01-10 13:24 ` Ingo Molnar
2009-01-10 13:36 ` [bisected] " Ingo Molnar
2009-01-10 13:57 ` Alan Cox
2009-01-10 15:10 ` Sergei Shtylyov [this message]
2009-01-10 15:28 ` Alan Cox
2009-01-10 15:59 ` Sergei Shtylyov
2009-01-10 20:06 ` Sergei Shtylyov
2009-01-10 20:31 ` Jeff Garzik
2009-01-10 20:50 ` Sergei Shtylyov
2009-01-11 0:10 ` Alan Cox
2009-01-11 9:18 ` Sergei Shtylyov
2009-01-11 11:24 ` Alan Cox
2009-01-13 9:38 ` [PATCH] ata: fix wrong WARN_ON_ONCE Christian Borntraeger
2009-01-10 13:57 ` [bisected] Re: todays git: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750() Christian Borntraeger
2009-01-10 13:53 ` Alan Cox
2009-01-10 14:36 ` James Bottomley
2009-01-10 15:03 ` Jeff Garzik
2009-01-10 15:12 ` Alan Cox
2009-01-10 15:22 ` James Bottomley
2009-01-10 15:29 ` Alan Cox
2009-01-10 15:34 ` Sergei Shtylyov
2009-01-10 15:29 ` Sergei Shtylyov
2009-01-10 15:32 ` Alan Cox
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