[ Grr, sorry for not including you originally Andrew, if this ends up being ok with others, it will probably need to go through your tree. ] On 19.02.2014 [15:17:14 -0800], Nishanth Aravamudan wrote: > We can call local_memory_node() before the zonelists are setup. In that > case, first_zones_zonelist() will not set zone and the reference to > zone->node will Oops. Catch this case, and, since we presumably running > very early, just return that any node will do. > > Signed-off-by: Nishanth Aravamudan <nacc@xxxxxxxxxxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Michal Hocko <mhocko@xxxxxxx> > Cc: Mel Gorman <mgorman@xxxxxxx> > Cc: linux-mm@xxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: Christoph Lameter <cl@xxxxxxxxx> > Cc: David Rientjes <rientjes@xxxxxxxxxx> > Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx> > Cc: Ben Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> > Cc: Anton Blanchard <anton@xxxxxxxxx> > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index e3758a0..5de4337 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -3650,6 +3650,8 @@ int local_memory_node(int node) > gfp_zone(GFP_KERNEL), > NULL, > &zone); > + if (!zone) > + return NUMA_NO_NODE; > return zone->node; > } > #endif -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>