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For some unknown reason, we stick a -1 in cpu_2_node when we unmap a cpu
on i386. We're better off sticking a 0 in there, because at least 0 is
a valid value if something references it. -1 is only going to cause
problems at some point down the line. Besides, we initialize the array
with 0's, so undoing it should return it to that same value.
Cheers!
-Matt
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filename="i386_smpboot_fix.patch"
--- linux-2.5.70-vanilla/arch/i386/kernel/smpboot.c Mon Mar 24 14:00:35 2003
+++ linux-2.5.70-vanilla/arch/i386/kernel/smpboot.c.fixed Wed Apr 2 18:23:06 2003
@@ -520,7 +520,7 @@
printk("Unmapping cpu %d from all nodes\n", cpu);
for (node = 0; node < MAX_NR_NODES; node ++)
node_2_cpu_mask[node] &= ~(1 << cpu);
- cpu_2_node[cpu] = -1;
+ cpu_2_node[cpu] = 0;
}
#else /* !CONFIG_NUMA */
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