Messages in this thread | ![/](/images/icornerl.gif) | | Date | Wed, 12 Apr 2006 19:33:31 +0200 (CEST) | From | Oliver Weihe <> | Subject | Opteron 128GB NODMAPSIZE too small? |
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While running SuSE Linux 10.0 (x86_64) with a vanilla 2.6.16.1 on an 8way (8 sockets) Opteron equipped with 128GB (16GB per socket) of memory I found this in dmesg.
Any guesses to which value I should set NODEMAPSIZE? Currently it is 0xfff (from 'include/asm-x86_64/mmzone.h')
Scanning NUMA topology in Northbridge 24 Number of nodes 8 Node 0 MemBase 0000000000000000 Limit 0000000422000000 Node 1 MemBase 0000000422000000 Limit 0000000822000000 Node 2 MemBase 0000000822000000 Limit 0000000c22000000 Node 3 MemBase 0000000c22000000 Limit 0000001022000000 Node 4 MemBase 0000001022000000 Limit 0000001422000000 Node 5 MemBase 0000001422000000 Limit 0000001822000000 Node 6 MemBase 0000001822000000 Limit 0000001c22000000 Node 7 MemBase 0000001c22000000 Limit 0000002022000000 NUMA: Using 25 for the hash shift. Your memory is not aligned you need to rebuild your kernel with a bigger NODEMAPSIZE shift=25 No NUMA node hash function found. Contact maintainer No NUMA configuration found Faking a node at 0000000000000000-0000002022000000 Bootmem setup node 0 0000000000000000-0000002022000000
Regards, Oliver Weihe
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