------- Comment From thierry.fa...@fr.ibm.com 2015-01-06 16:22 EDT-------
The patch sent to the mailing list was :
Subject: [PATCH] numactl-2.0.9~rc5/libnuma.c numa_node_of_cpu()
Date: Tue, 09 Dec 2014 16:44:57 +0100
From: Thierry fa...@linux.vnet.ibm.com <thie...@linux.vnet.ibm.com>
To: linux-n...@vger.kernel.org, c...@sgi.com, clame...@sgi.com,
lee.schermerh...@hp.com
Message-ID: <548718f9.9080...@linux.vnet.ibm.com>
References: <546b74f0.2070...@linux.vnet.ibm.com>
Could you please take this patch in account as it is needed by couple of
distros.
Thanks
-------- Forwarded Message --------
Subject: [PATCH] numactl-2.0.9~rc5/libnuma.c numa_node_of_cpu()
Date: Tue, 18 Nov 2014 17:31:41 +0100
From: Thierry fa...@linux.vnet.ibm.com <thie...@linux.vnet.ibm.com>
To: ubuntu-devel-disc...@lists.ubuntu.com, Ian Wienand <i...@debian.org>
linux-n...@vger.kernel.org
Subject: [PATCH] libnuma_node_not_sequential
libnuma.so function numa_node_of_cpu() doesn't use previously
created list of valid nodes but use the entire array indexed with the
maximum number of nodes available on the system.
Fix is to check node is valid before calling numa_node_to_cpus_v2_int()
which check that the cpu belongs to that node.
.
Signed-off-by: Thierry Fauck <thie...@linux.vnet.ibm.com>
---
Index: numactl-2.0.9~rc5/libnuma.c
===================================================================
--- numactl-2.0.9~rc5.orig/libnuma.c
+++ numactl-2.0.9~rc5/libnuma.c
@@ -1403,10 +1403,12 @@ int numa_node_of_cpu(int cpu)
bmp = numa_bitmask_alloc(ncpus);
nnodes = numa_max_node();
for (node = 0; node <= nnodes; node++){
- numa_node_to_cpus_v2_int(node, bmp);
- if (numa_bitmask_isbitset(bmp, cpu)){
- ret = node;
- goto end;
+ if (_getbit(numa_nodes_ptr,node)) {
+ numa_node_to_cpus_v2_int(node, bmp);
+ if (numa_bitmask_isbitset(bmp, cpu)){
+ ret = node;
+ goto end;
+ }
}
}
ret = -1;
--
Thierry Fauck @ linux.vnet.ibm
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https://bugs.launchpad.net/bugs/1358835
Title:
numa_node_of_cpu() returns warning when cpu_index > 79
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