Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | Re: skge error; hangs w/ hardware memory hole | Date | Tue, 25 Jul 2006 04:35:05 +0200 |
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On Sunday 23 July 2006 08:32, Anthony DeRobertis wrote: > Andreas Kleen wrote: > > > > > You need to use iommu=soft swiotlb=force > > > > The standard IOMMU is also broken on VIA, but forced swiotlb should > > work. > > Didn't work :-(
swiotlb=force is unfortunately broken right now.
But which this patch it should work. Does it?
-Andi
Test patch only: disable DMA over 4GB
Index: linux-2.6.17-work/arch/x86_64/kernel/pci-dma.c =================================================================== --- linux-2.6.17-work.orig/arch/x86_64/kernel/pci-dma.c +++ linux-2.6.17-work/arch/x86_64/kernel/pci-dma.c @@ -202,7 +202,7 @@ int dma_set_mask(struct device *dev, u64 { if (!dev->dma_mask || !dma_supported(dev, mask)) return -EIO; - *dev->dma_mask = mask; + *dev->dma_mask = mask & 0xffffffff; return 0; } EXPORT_SYMBOL(dma_set_mask); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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