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x86: print per_cpu data address

PATCH Applied Yinghai Lu 2 participants 2 messages Jul 29, 2008 – Jul 31, 2008 x86

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Yinghai Lu

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PATCH 1/1 x86: print per_cpu data address

to make sure per_cpu data on correct node.

Signed-off-by Yinghai Lu <[email protected]>
---
 arch/x86/kernel/setup_percpu.c |    9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)
arch/x86/kernel/setup_percpu.c +8 -1
Index: linux-2.6/arch/x86/kernel/setup_percpu.c
===================================================================
@@ -162,9 +162,16 @@ void __init setup_per_cpu_areas(void)
 			printk(KERN_INFO
 			       "cpu %d has no node %d or node-local memory\n",
 				cpu, node);
+			if (ptr)
+				printk(KERN_DEBUG "per cpu data for cpu%d at %016lx\n",
+					 cpu, __pa(ptr));
 		}
-		else
+		else {
 			ptr = alloc_bootmem_pages_node(NODE_DATA(node), size);
+			if (ptr)
+				printk(KERN_DEBUG "per cpu data for cpu%d on node%d at %016lx\n",
+					 cpu, node, __pa(ptr));
+		}
 #endif
 		per_cpu_offset(cpu) = ptr - __per_cpu_start;
 		memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);