On Fri, Jun 01, 2007 at 10:26:01PM +0200, Andi Kleen wrote: > Normally swiotlb doesn't even try to bounce when dma mask is <= > end_pfn so something must be very wrong in your kernel. It > definitely isn't a mainline kernel. If this happens in Xen then Xen > just needs fixing -- it should not try to bounce when the normal > kernel wouldn't. Xen needs to bounce when the requested buffer is not contiguous in machine memory (and indeed uses swiotlb for that). Cheers, Muli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Follow-Ups:
- Re: [PATCH] quiet down swiotlb warnings
- From: Andi Kleen <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- References:
- [PATCH] quiet down swiotlb warnings
- From: Rik van Riel <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Andi Kleen <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Christoph Hellwig <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Andi Kleen <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Rik van Riel <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Andi Kleen <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Andrew Vasquez <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Andi Kleen <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Rik van Riel <[email protected]>
- Re: [PATCH] quiet down swiotlb warnings
- From: Andi Kleen <[email protected]>
- [PATCH] quiet down swiotlb warnings
- Prev by Date: Re: Device Driver Etiquette
- Next by Date: Re: [RFC 0/4] CONFIG_STABLE to switch off development checks
- Previous by thread: Re: [PATCH] quiet down swiotlb warnings
- Next by thread: Re: [PATCH] quiet down swiotlb warnings
- Index(es):
 |