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authorAnton Blanchard <anton@samba.org>2010-04-26 15:32:46 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-05-06 18:05:26 +1000
commitceba1abcb00b0ef0b1efcd715285f6e05523edef (patch)
tree6aa0a9334a3324f9f7170606cc071b5dbd223832 /arch/powerpc/Kconfig.debug
parent2ef613cb94556ff69860f6bf004298f4e131c216 (diff)
downloadlinaro-lsk-ceba1abcb00b0ef0b1efcd715285f6e05523edef.tar.gz
powerpc/cpumask: Add DEBUG_PER_CPU_MAPS option
Enable the DEBUG_PER_CPU_MAPS option so we can look for problems with cpumasks . Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/Kconfig.debug')
-rw-r--r--arch/powerpc/Kconfig.debug12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 5cdd7ed9a12..53696da4518 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -44,6 +44,18 @@ config DEBUG_STACK_USAGE
This option will slow down process creation somewhat.
+config DEBUG_PER_CPU_MAPS
+ bool "Debug access to per_cpu maps"
+ depends on DEBUG_KERNEL
+ depends on SMP
+ default n
+ ---help---
+ Say Y to verify that the per_cpu map being accessed has
+ been setup. Adds a fair amount of code to kernel memory
+ and decreases performance.
+
+ Say N if unsure.
+
config HCALL_STATS
bool "Hypervisor call instrumentation"
depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS