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[Xen-devel] Re: Massive problems with 'PCI-DMA: Out of SW-IOMMU (solved)

from [Markus Schuster]

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Subject:	[Xen-devel] Re: Massive problems with 'PCI-DMA: Out of SW-IOMMU (solved)
From:	Markus Schuster <ma.schuster@xxxxxx>
Date:	Tue, 29 Jan 2008 23:32:23 +0100
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Randy McAnally wrote:
> Actually after two days of banging on this issue I have reached two
> resolutions.
> 
> 1. Flashing to latest firmware (3.08.00.016) seems to have solved it.

Sounds a bit strange to me, but nice if it helps for you...
I have a 9500S-12 and the latest firmware is 2.08.00.009 - which is flashed
on my controller already. 

> 2. If you cannot flash firmware, you can use 2.6.16.38 kernel from Xen
> 3.0.4.  I tried this kernel with Xen 3.1.3-rc2 and it works.

That's right, 2.6.16 on 3.0.4 works very well. I wouldn't call
it "solution", but it's a nice workarround, until someone cute fixes this
problem. 

Regards, 
Markus

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