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

from [Randy McAnally]

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Subject:	[Xen-devel] Re: Massive problems with 'PCI-DMA: Out of SW-IOMMU
From:	"Randy McAnally" <rsm@xxxxxxxxxxxxx>
Date:	Wed, 30 Jan 2008 12:28:03 -0500
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> I thought about writing to the mailing-list this days, too. Maybe there 
has 
> been some fix in 3.2.0 or 3.1.3? 
> Keir, do you have any news on this annoying issue? 

After two days of banging on this issue I have reached two 
resolutions.  

1. Flashing the 3ware card to latest firmware (3.08.00.016) seems to have 
solved it with all kernel versions.  This is highly recommended that you 
flash your firmware before continuing as I believe this to be the root cause 
if all the problem.

2. If you cannot flash firmware, you can use 2.6.16.38 kernel from Xen 
3.0.4.  I tried this older kernel with Xen 3.1.3-rc2 and it works.  Primary 
drawback (aside from the obvious) is that you may have to compile in network 
driver, ect.


-- 
Randy McAnally
Fast Serv Networks, LLC
619-819-8252 x201
619-819-9443 fax


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