On Fri, 1 May 2020, Srikar Dronamraju wrote: > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -116,8 +116,10 @@ EXPORT_SYMBOL(latent_entropy); > */ > nodemask_t node_states[NR_NODE_STATES] __read_mostly = { > [N_POSSIBLE] = NODE_MASK_ALL, > +#ifdef CONFIG_NUMA > + [N_ONLINE] = NODE_MASK_NONE, Hmmm.... I would have expected that you would have added something early in boot that would mark the current node (whatever is is) online instead?