lkml.org 
[lkml]   [2005]   [Dec]   [24]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
DateSat, 24 Dec 2005 10:53:13 -0500
FromJeff Garzik <>
SubjectRe: pci-dma disables iommu on nforce4 motherboards?
Ed Sweetman wrote:
> I have an asus A8N-E motherboard and recieve the following message on boot.
> PCI-DMA: Disabling IOMMU.
> 
> I have no issues with anything not functioning.  I guess i'm just 
> curious as to why this is done and if i'm missing out on any sort of 
> performance gain by not using the iommu.   I have less than 4GB of ram, 
> would that be why it's disabled (which is why i think it is)?  -

What happens if you boot with iommu=force ?

	Jeff



-
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/

\
 
 \ /
  Last update: 2005-12-24 16:57    [from the cache]
©2003-2008