On Wed, Feb 18, 2004 at 10:59:03AM -0800, David Mosberger wrote: > Christoph> but honestly can't you fix the firmware to return sane > Christoph> information instead? i.e. move the above fix to firmware > Christoph> instead of letting linux fixup the reported data. > > Hmmh, I'm no NUMA-expert and it isn't clear to me whether the patch is > working around a firmware-bug or a limitation in the Linux NUMA code. > I don't see off-hand why it should be illegal to have a memory config > with only one node with memory. The whole PXM_MAGIC business looks > strange to me though. Can someone explain? Well, it would be nice if memory layout was reported fully, with the correct CPU/node and memory affinity information. That would allow us to either interleave in software (maybe a new flag that changes the way discontig.c builds the memory maps) or just treat the machine as a normal NUMA box. But maybe this isn't possible with the HP cell boxes? Robert, maybe you can describe the memory layout of these machines a little more (sorry if I missed some discussion, I'm having mail trouble right now and was unsubscribed from linux-ia64). Thanks, Jesse - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.htmlReceived on Wed Feb 18 15:27:31 2004
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