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authorAndi Kleen <ak@suse.de>2007-08-21 14:42:40 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-08-21 10:06:44 -0700
commit36ce1514117b92b7372e1b041ccc686855454d33 (patch)
treed8164a8b474e09ae40c53d3759b20703ca652f0a /arch/i386
parent8eb891fc809b2300137bcd247025628c06c95a63 (diff)
downloadlinux-36ce1514117b92b7372e1b041ccc686855454d33.tar.gz
i386: Mark NUMA support experimental
I did some testing and found quite a lot of problems (doesn't
boot at all on non NUMA and misassigns cores on Opteron systems).

Mark it as experimental and warn against its use for now.

It's still default y for SUMMIT/NUMAQ because it'll presumably
work on these systems.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/Kconfig8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index f16a46e8849c..97b64d7d6bf6 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -614,10 +614,14 @@ config X86_PAE
 
 # Common NUMA Features
 config NUMA
-	bool "Numa Memory Allocation and Scheduler Support"
-	depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI)
+	bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
+	depends on SMP && HIGHMEM64G && (X86_NUMAQ || (X86_SUMMIT || X86_GENERICARCH) && ACPI) && EXPERIMENTAL
 	default n if X86_PC
 	default y if (X86_NUMAQ || X86_SUMMIT)
+	help
+	  NUMA support for i386. This is currently high experimental
+	  and should be only used for kernel development. It might also
+	  cause boot failures.
 
 comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
 	depends on X86_SUMMIT && (!HIGHMEM64G || !ACPI)