"Yinghai Lu" <yhlu.kernel@gmail.com> writes:

quoted text
> On Thu, Aug 28, 2008 at 1:49 PM, Jari Aalto <jari.aalto@cante.net> wrote:
>
>> Krzysztof Halasa <khc@pm.waw.pl> writes:
>>
>>> Jari Aalto <jari.aalto@cante.net> writes:
>>>
>>>> What, if after booting to 2.6.26 and without any 'iommu' boot parameters,
>>>> there still appears "Out of Iommu space" messages? What kind of logs
>>>> should I post?
>>>
>>> You shouldn't be getting "Out of SW-IOMMU space" messages when not
>>> using SW-IOMMU.
>>
>> REF: http://article.gmane.org/gmane.linux.kernel/725293 (thread start)
>>
>> I regret to report that:
>>
>> - Upgraded to kernel 2.6.26-1-amd64 (Debian/unstable 2.6.26-3)
>
> can you send out whole boot log? with "debug initcall_debug"

See below.

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> http://people.redhat.com/mingo/tip.git/readme.txt

Could you explain this document a bit. What git commands should I use to
retrive test kernel to build?

1 The vanilla boot. No IOMMU option, no SWIOTLB
  http://sial.org/pbot/32038

2 with iommu=memaper=3
  http://sial.org/pbot/32040

3 with iommu=memaper=3,noagp
  http://sial.org/pbot/32041

4 with iommu=memaper=3,noagp,soft swiotlb=65535
  http://sial.org/pbot/32042

I'm including the diff between [1] and [2]. The script I used is also
attached.

Jari