[Xen-users] Re: About swiotlb and " ...PCI-DMA: Out of SW-IOMMU..."error

["Shaun R." <mailinglists@xxxxxxxxxxxxxxxx>]

I have the same problem with xen 3.1 and adding swiotlb=128 to my grub conf 
just caused xen to crash/panic.  Not only that but this problem killed my 
dom0 root partition forcing all of the data into /lost+found which is oh so 
much fun.  The only solution i've found to stopping this from happening is 
to force dom0 to use less than 2GB of ram.  In my case i forced my dom0 to 
use 1024MB of ram leaving the rest (around 15GB) on vacation.  Not a big 
deal since before 3.1 i always forced dom0 to use only 1024MB of ram anyway 
leaving the rest for the domU's.
I'm running 3ware 9560 controllers btw too if it matters.

~Shaun



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