On Tue, 22 May 2012 13:03:54 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > On Mon, 21 May 2012 18:53:37 -0700 (PDT) David Rientjes <rientjes@xxxxxxxxxx> wrote: > > > > Yeah, it's sched/numa since that's what introduced numa_init(). It does > > for_each_node() for each node and does a kmalloc_node() even though that > > node may not be online. Slub ends up passing this node to the page > > allocator through alloc_pages_exact_node(). CONFIG_DEBUG_VM would have > > caught this and your config confirms its not enabled. > > > > sched/numa either needs a memory hotplug notifier or it needs to pass > > NUMA_NO_NODE for nodes that aren't online. Until we get the former, the > > following should fix it. > > > > > > sched, numa: Allocate node_queue on any node for offline nodes > > > > struct node_queue must be allocated with NUMA_NO_NODE for nodes that are > > not (yet) online, otherwise the page allocator has a bad zonelist. > > > > Signed-off-by: David Rientjes <rientjes@xxxxxxxxxx> > > Thanks, that fixes it. > > Tested-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> And I will put that patch in linux-next until it (or something better) appears. -- Cheers, Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
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