[Xen-devel] Re: Re: Massive problems with 'PCI-DMA: Out of SW-IOMMU space for XXX bytes [..]' with 3Ware controller

[Markus Schuster <ma.schuster@xxxxxx>]

Keir Fraser wrote:
> No, except to say that it is almost certainly a dom0 kernel issue, not
> core hypervisor. 

I agree on this. 


> So it will not be fixed by just changing hypervisor 
> version if you retain the same dom0 kernel version. 

I agree on this, too. My tests showed that you are right with your
assumption so far.
But i would have used the matching kernel patch, too. 


> What kernel are you using? 

I've tried Debians 2.6.18 patched for XEN 3.1.2 myself.


> Have you tried a vendor Xen kernel for your distro? 

That's the last thing I wanted to try but couldn't find time to reboot the
affected server to test it out. My intention was not to use a distro
kernel, as Debians 2.6.18 is patched for XEN 3.0.3. I could stay with my
current 3.0.4 system and I would be more recent. 

Regards, 
Markus


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