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| author | Andi Kleen <ak@suse.de> | 2007-05-02 19:27:21 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2007-05-02 19:27:21 +0200 |
| commit | 3bea9c9793a17053e05d970e5d90d48fc9fce07d (patch) | |
| tree | 23d742f3176b4e61512e81723febe7a02822408a | |
| parent | [PATCH] x86: Use RDTSCP for synchronous get_cycles if possible (diff) | |
| download | linux-3bea9c9793a17053e05d970e5d90d48fc9fce07d.tar.xz linux-3bea9c9793a17053e05d970e5d90d48fc9fce07d.zip | |
[PATCH] x86-64: Don't enable NUMA for a single node in K8 NUMA scanning
This was supposed to see the full memory on a ASUS A8SX motherboard
with 4GB RAM where the northbridge reports less memory, but it didn't
help there. But it's a reasonable change so let's include it anyways.
Signed-off-by: Andi Kleen <ak@suse.de>
| -rw-r--r-- | arch/x86_64/mm/k8topology.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86_64/mm/k8topology.c b/arch/x86_64/mm/k8topology.c index 60e860e5ef4c..f983c75825d0 100644 --- a/arch/x86_64/mm/k8topology.c +++ b/arch/x86_64/mm/k8topology.c @@ -62,6 +62,8 @@ int __init k8_scan_nodes(unsigned long start, unsigned long end) reg = read_pci_config(0, nb, 0, 0x60); numnodes = ((reg >> 4) & 0xF) + 1; + if (numnodes <= 1) + return -1; printk(KERN_INFO "Number of nodes %d\n", numnodes); |