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On Mon, 17 Oct 2005, Andi Kleen wrote: > On Monday 17 October 2005 17:27, Linus Torvalds wrote: > > On Mon, 17 Oct 2005, Andi Kleen wrote: > > > The patch is actually not quite correct - in theory node 0 could be too > > > small to contain the full swiotlb bounce buffers. > > > > Is node 0 guaranteed to be all low-memory? What if it allocates stuff at > > the end of memory on NODE(0)? > > This is 64bit ... only low memory. Ehh.. No there isn't. PCI DMA isn't magically 64-bit, even on your Opteron. So low memory in this case is anything < 32 bits. How many bits the CPU has is immaterial. That's the whole _point_ of swtlb, after all, so I don't see why you argue. Linus - 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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