[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [pvops-2.6.31.12 ]Fatal DMA error! Please use 'swiotlb=force' kernel BUG at drivers/pci/xen-iommu.c:227! invalid opcode: 0000 [#1] SMP
On Thu, Mar 11, 2010 at 11:44:53AM +0100, Sander Eikelenboom wrote: > Hi Konrad , > > On this machine i'm using > - xen-3.4.2 > - pvops 2.6.31.6 dom0 kernel > - debian stock 2.6.26.2-xen kernels > - All are 64bit, total system mem is 8GB, no hardware iommu present. > > I'm passing through several pci devices with great succes (worked stable for > several months) > - Soundcard > - 1 PCI and 1 PCI-e USB 2.0 cards used for videograbbing > > > > Now i have tried to passthrough a third USB card, (PCI-e, USB 3.0 in this > case), with a new pvops 2.6.31.12 kernel. > > But although i specified swiotlb=force, something seems to go wrong with DMA > mapping, dmesg from the domU shows the error below. > The complete dmesg output is attached. Ugh. There is one more parameter you need to add, that is 'iommu=soft'. That 'use swiotlb=force' nees to be fixed. Thanks for spotting it. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
|
![]() |
Lists.xenproject.org is hosted with RackSpace, monitoring our |