-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 11/07/2014 09:53 AM, Andrey Ryabinin wrote:
> Zero 'level' (e.g. on non-NUMA system) causing out of bounds > access in this line: > > sched_max_numa_distance = sched_domains_numa_distance[level - 1]; > > Fix this by exiting from sched_init_numa() earlier. > > Signed-off-by: Andrey Ryabinin <[email protected]> Fixes: > 9942f79ba ("sched/numa: Export info needed for NUMA balancing on > complex topologies") Reviewed-by: Rik van Riel <[email protected]> > Another option would be to not call sched_init_numa() if > nr_node_ids == 1, but I'm not sure that there is no such > configuration where nr_node_ids > 1 and node_distance(i, j) = > node_distance(0, 0) for any i and j. When there is only one node, the distance from the node to itself will always be equal to node_distance(0, 0) I am somewhat surprised we go through all of sched_init_numa on a non-numa system, though :) - -- All rights reversed -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQEcBAEBAgAGBQJUXRQ1AAoJEM553pKExN6D+h4H/jWfrFnEJFJMIrZU/nK5EcHg CiUGVJH2f4jL6qCSRIIduxyyu9qggsQ5Qp7Ci5bfGm98Sj89DNnXUv4sarPWT3zA KIDM+BuKFjKSXfCjcwrCkBP6x8gIYgCLR3hSThmq/MPrbNULy+1SUslb77i3kmBK OhLrjSC0SQty5yvGkCfWYGGh7rRboRcfVyckvODRRdhwHtBP1p/seDNWHadAeX+d WRNqdqJkvwwJ+eW9e7e009+OqB2EmS9xKBjXGIc7zEehfgOaeROQZ8sL7exs2g3n 6gtnWpn4firR15BSaHdK8kaEmsReWUZdrIebNVsUDmErN97O/AJ9UygJ5wUenzQ= =YPeU -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
