linux-kernel - Re: [bug] ata subsystem related crash with latest -git

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Message-ID: <4716F2FC.70400@garzik.org>
Date:	Thu, 18 Oct 2007 01:45:32 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	Mark Lord <lkml@....ca>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	fujita.tomonori@....ntt.co.jp, jens.axboe@...cle.com,
	mingo@...e.hu, linux-kernel@...r.kernel.org,
	alan@...rguk.ukuu.org.uk, tomof@....org
Subject: Re: [bug] ata subsystem related crash with latest -git

Mark Lord wrote:
> Mark Lord wrote:
>> Linus Torvalds wrote:
>>>
>>> On Wed, 17 Oct 2007, Mark Lord wrote:
>>>> It would be good to have something soon-ish.
>>>> This "dead at boot time" issue is impacting the general ability to test
>>>> patches against latest -git in time for the current merge window.
>>>
>>> In the meantime, does the patch I sent out help people?
>>
>> Your patch from this posting http://lkml.org/lkml/2007/10/17/285
>> does not seem to make much difference here.
>>
>> It still crashes at exactly the same place.
> 
> 
> However, Jens's patch from that same thread:
> 
>     http://lkml.org/lkml/2007/10/17/269
> 
> ..allowed me to boot and post this followup message from -git12
> 
> Jeff: try that one.

That's already in my upstream kernel, here.  commits
ba951841ceb7fa5b06ad48caa5270cc2ae17941e and 
a3bec5c5aea0da263111c4d8f8eabc1f8560d7bf.

sata_mv and sata_nv still reliably poop themselves here, whereas its 
rock solid with 2.6.23.1.  Sounds like different issues from yours, as I 
see a stream of SATA errors on the bad kernels, errors which are often a 
symptom of something whacked in the DMA engine (misprogramming causes 
the silicon to generate bogus FIS's, which the device then chokes on)

	Jeff


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