[PATCH] x86_64: Limit max number of CPUs to 255
Because 256 causes overflows in some code that stores them in 8 bit
fields and the x86 APIC architecture cannot handle more than 255
anyways.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
index 24a3016..6fc6314 100644
--- a/arch/x86_64/Kconfig
+++ b/arch/x86_64/Kconfig
@@ -323,7 +323,7 @@
config NR_CPUS
int "Maximum number of CPUs (2-256)"
- range 2 256
+ range 2 255
depends on SMP
default "8"
help
