Re: [Xen-users] Out of SW-IOMMU space for 7222 bytes at device ...: swiotlb or dom0_mem?

[Stephan Seitz <s.seitz@xxxxxxxxxxxx>]

Hi Chris,

you might want to try the drivers mentioned here 
http://www.3ware.com/KB/article.aspx?id=15243&cNode=6I1C6S

This *should* fix the issue for dom0.

Anyway, as well as these drivers fixed it for me (3.2.1, 2.6.18.8-xen, 64bit w/ 
plenty of RAM),
I'ld never ever take this productive. Continous kernel msgs kept me from 
trusting that beast.

If you count manpower it' might be cheaper to buy some areca controller 
instead. (http://www.areca.com.tw/products/pcix.htm)


Sorry for this ad, but I found them as reliable as 3ware.

Cheers,

Stephan




Chris Joelly schrieb:
> Hello,
>
> i am experiencing some strange errors from the xen kernel, all related
> to SATA and SAS raid controllers, 3ware and LSI in my setup:
>
> 03:00.0 RAID bus controller: 3ware Inc 9650SE SATA-II RAID (rev 01)
> 08:00.0 SCSI storage controller: LSI Logic / Symbios Logic SAS1064ET 
> PCI-Express Fusion-MPT SAS (rev 04)
>
> Erros:
> Out of SW-IOMMU space for 7222 bytes at device ...
>
> i found somwhere on the internet that increasing dom0_mem and swiotlb
> should do the trick, but thats unfortunately not true for my setup ...
>
> can anybody tell whats this swiotlb value and how can i calculate a
> appropriate value?
>
> Chris

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Stephan Seitz
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