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Re: [Xen-devel] Massive problems with 'PCI-DMA: Out of SW-IOMMU space for XXX bytes [..]' with 3Ware controller
Markus Schuster wrote:
> PCI-DMA: Out of SW-IOMMU space for 40960 bytes at device 0000:03:00.0
> 3w-9xxx: scsi0: ERROR: (0x06:0x001C): Failed to map scatter gather list.
> (03:00.0 is the 3Ware Controller)
Me too as well...any progress on this issue?
I notice that IO performance is notably slower than the stock RHEL kernel;
about 1/2 overall write performance. I can trigger the bug using DD or by
copying disk images around. All versions of Xen 3.1.x and 3.2.x are
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