Commit 4c31e92b authored Apr 22, 2009 by Yinghai Lu Committed by Ingo Molnar Apr 23, 2009

x86: check boundary in setup_node_bootmem()



Commit dc098551 ("x86/uv: fix init of memory-less nodes") causes a
two sockets system (where node-1 doesn't have RAM installed) to crash.

That commit makes node_possible include cpu nodes that do not have memory.
So check boundary in setup_node_bootmem().

[ Impact: fix boot crash on RAM-less NUMA node system ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Jack Steiner <steiner@sgi.com>
LKML-Reference: <49EF89DF.9090404@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent c5428e95

arch/x86/mm/numa_64.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -188,6 +188,9 @@ void __init setup_node_bootmem(int nodeid, unsigned long start,
		const int pgdat_size = roundup(sizeof(pg_data_t), PAGE_SIZE);
		int nid;

		if (!end)
		return;

		start = roundup(start, ZONE_ALIGN);

		printk(KERN_INFO "Bootmem setup node %d %016lx-%016lx\n", nodeid,