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

Jens Axboe
2007-10-18T07:10:21Z

On Thu, Oct 18 2007, Jeff Garzik wrote:
> 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)

Do you know if this poop involves the segment padding that sometimes
goes on in libata?

--
Jens Axboe