* [PATCH] x86: print per_cpu data address
@ 2008-07-29 7:37 Yinghai Lu
2008-07-31 21:20 ` Ingo Molnar
0 siblings, 1 reply; 2+ messages in thread
From: Yinghai Lu @ 2008-07-29 7:37 UTC (permalink / raw)
To: Ingo Molnar, Thomas Gleixner, H. Peter Anvin; +Cc: linux-kernel
to make sure per_cpu data on correct node.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
---
arch/x86/kernel/setup_percpu.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
Index: linux-2.6/arch/x86/kernel/setup_percpu.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/setup_percpu.c
+++ 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);
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2008-07-29 7:37 [PATCH] x86: print per_cpu data address Yinghai Lu
2008-07-31 21:20 ` Ingo Molnar
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