[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>
git-mirror · Mar 25, 2006 · 01d4bed · 01d4bed
1 parent 5b922cd
commit 01d4bed
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig
@@ -323,7 +323,7 @@ config HAVE_ARCH_EARLY_PFN_TO_NID
 
 config NR_CPUS
 	int "Maximum number of CPUs (2-256)"
-	range 2 256
+	range 2 255
 	depends on SMP
 	default "8"
 	help