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Date: Fri, 29 Jun 2007 13:39:26 -0400
From: Chuck Ebbert <cebbert@redhat.com>
Organization: Red Hat
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To: Alan Cox <alan@lxorguk.ukuu.org.uk>
CC: Michal Piotrowski <michal.k.k.piotrowski@gmail.com>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Andrew Morton <akpm@linux-foundation.org>,
       LKML <linux-kernel@vger.kernel.org>,
       Rodrigo Luiz <troops.of.doom@gmail.com>, alsa-devel@alsa-project.org,
       Takashi Iwai <tiwai@suse.de>, Jaroslav Kysela <perex@suse.cz>,
       Ben Collins <bcollins@ubuntu.com>, reiserfs-devel@vger.kernel.org,
       "Vladimir V. Saveliev" <vs@namesys.com>,
       Randy Dunlap <randy.dunlap@oracle.com>, linux-ide@vger.kernel.org,
       David Chinner <dgc@sgi.com>, Jeff Garzik <jeff@garzik.org>,
       Tejun Heo <htejun@gmail.com>, Rodney Gordon II <meff@spherevision.org>
Subject: Re: [1/2] 2.6.22-rc6: known regressions v2
References: <46852187.3080504@googlemail.com> <20070629175920.6af0c62b@the-village.bc.nu>
In-Reply-To: <20070629175920.6af0c62b@the-village.bc.nu>
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On 06/29/2007 12:59 PM, Alan Cox wrote:
>> SATA/PATA
>>
>> Subject    : libata IT821X driver still fails! Hard-freezes system
>> References : http://lkml.org/lkml/2007/6/14/82
>> Submitter  : Rodney Gordon II <meff@spherevision.org>
>> Status     : unknown
> 
> Not a regression as it seems this user's box has always been broken. I've
> been running heavy testing with 2.6.22rc6 and IT8212 and its working
> reliably for the "dumb" mode in question.
> 
> The hardware mode needs a fix Tejun has queued somewhere (probably in
> Jeff's vast backlog) and then works too.
> 
> I'm not even sure this report is IT8212 related rather than just an IRQ
> storm

Why does the driver report "irq 0"?

ata7: PATA max UDMA/133 cmd <blah> ctl <blah> bmdma <blah> irq 0  <====

Above that, the ACPI layer says it assigned IRQ 20

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