From: Jack Steiner <steiner@sgi.com>
To: yinghai@kernel.org, mingo@elte.hu, tglx@linutronix.de
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] x86: Fix calculation of size of numa_distance
Date: Fri, 25 Feb 2011 08:57:59 -0600 [thread overview]
Message-ID: <20110225145759.GA1606@sgi.com> (raw)
Fix the calculation of the size of numa_distance array. It is 2-dimemsional
array. This fixes early panics seen on large numa systems.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Index: linux/arch/x86/mm/numa_64.c
===================================================================
--- linux.orig/arch/x86/mm/numa_64.c 2011-02-23 17:46:38.000000000 -0600
+++ linux/arch/x86/mm/numa_64.c 2011-02-25 08:53:45.781921592 -0600
@@ -414,7 +414,8 @@ static int __init numa_alloc_distance(vo
for_each_node_mask(i, nodes_parsed)
cnt = i;
- size = ++cnt * sizeof(numa_distance[0]);
+ cnt++;
+ size = cnt * cnt * sizeof(numa_distance[0]);
phys = memblock_find_in_range(0, (u64)max_pfn_mapped << PAGE_SHIFT,
size, PAGE_SIZE);
next reply other threads:[~2011-02-25 14:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-25 14:57 Jack Steiner [this message]
2011-02-25 15:03 ` Ingo Molnar
2011-02-25 15:06 ` [GIT PULL tip:x86/mm] fix incorrect NUMA distance table size calculation Tejun Heo
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