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

["Chiu, PCM (Peter)" <P.C.M.Chiu@xxxxxxxx>]

Interesting comments.

Can you elaborate a bit more as to why the 2.6.18 kernel works?

We have been hitting the same problem on the OpenSuse 10.3 with
2.6.22.17-0.1 (.x86_64-xen)
as well as OpenSuse 11.0 with 2.6.25.5-1.1 (.x86_64-xen).  Going back to
an older release 
would mean reversing the OS installation...

Peter

-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Markus
Schuster
Sent: 04 August 2008 15:15
To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Re: Out of SW-IOMMU space for 7222 bytes at device
...:swiotlb or dom0_mem?

Chris Joelly wrote:
> 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 had the same problem with a 3ware SATA raid controller and for me the
trick was to use the kernel source available from
http://xenbits.xensource.com/linux-2.6.18-xen.hg. 
Search xen-devel for my post from 2008-06-10. I give some more details
there. 

Greetings, 
Markus


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