[PATCH] boot failures on numa if no memory on node

[Mike Kravetz]

This bug exists in the current code and prevents machines from booting
with numa enabled if there is a node that does not contain memory.
Workaround is to boot with 'numa=off'.  Looks like a simple type.

Signed-off-by: Mike Kravetz <kravetz at us.ibm.com>

diff -Naupr linux-2.6.15-rc5-git1/arch/powerpc/mm/numa.c linux-2.6.15-rc5-git1.work/arch/powerpc/mm/numa.c
--- linux-2.6.15-rc5-git1/arch/powerpc/mm/numa.c	2005-12-04 05:10:42.000000000 +0000
+++ linux-2.6.15-rc5-git1.work/arch/powerpc/mm/numa.c	2005-12-07 20:49:23.000000000 +0000
@@ -125,7 +125,7 @@ void __init get_region(unsigned int nid,
 
 	/* We didnt find a matching region, return start/end as 0 */
 	if (*start_pfn == -1UL)
-		start_pfn = 0;
+		*start_pfn = 0;
 }
 
 static inline void map_cpu_to_node(int cpu, int node)