Commit d1db4ec8 authored Feb 15, 2006 by Daniel Yeisley Committed by Linus Torvalds Feb 15, 2006

[PATCH] x86_64: early initialization of cpu_to_node



The early initialization of cpu_to_node code as it is now only updates the
cpu_to_node array, and does not update cpu_pda()->nodemember.  This will
cause numa_node_id() to return 0 on systems where CPU 0 is not on Node 0.
This leads to a kernel panic in slab.c.

I've tested the patch below on a 16 processor x86_64 ES7000-600 server, and
no longer see the panic I saw with the original 2.6.16-rc3.

Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com>
Acked-by: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent b2ee9dbf

arch/x86_64/mm/numa.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -351,7 +351,7 @@ void __init init_cpu_to_node(void)
		continue;
		if (apicid_to_node[apicid] == NUMA_NO_NODE)
		continue;
		cpu_to_node[i] = apicid_to_node[apicid];
		numa_set_node(i,apicid_to_node[apicid]);
		}
		}

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