Messages in this thread Patch in this message | | | Subject | [PATCH] x86_64 Early initialization of cpu_to_node | From | Daniel Yeisley <> | Date | Tue, 14 Feb 2006 13:08:08 -0500 |
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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> ---
diff -Naur -p linux-2.6.16-rc3/arch/x86_64/mm/numa.c linux-2.6.16-rc3-a/arch/x86_64/mm/numa.c --- linux-2.6.16-rc3/arch/x86_64/mm/numa.c 2006-02-12 19:27:25.000000000 -0500 +++ linux-2.6.16-rc3-a/arch/x86_64/mm/numa.c 2006-02-14 08:36:10.000000000 -0500 @@ -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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