Messages in this thread | | | Date | Mon, 17 Oct 2005 08:37:24 -0700 | From | Ravikiran G Thirumalai <> | Subject | Re: x86_64: 2.6.14-rc4 swiotlb broken |
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On Mon, Oct 17, 2005 at 08:27:40AM -0700, 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)? > > Anyway, it sounds like "alloc_bootmem_low_pages()" is seriously buggered > if it allocates non-low pages, if only because of its name... > > > The real fix would be to get rid of the pgdata lists and just walk the > > node_online_map on bootmem.c. The memory hotplug guys have > > a patch pending for this. > > Argh. Which one should I pick? The NODE(0) one looks simpler, but is it > sufficient for now in practice (with the real one going into 2.6.14+)?
That's the reason I made a small patch. It does work on the boxes we use. But I like Yasunori-san's patch. Mine is just a chewing gum fix.
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