1 files changed, 15 insertions, 8 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 2e75478e9c69..4c9ae6085c75 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -512,6 +512,13 @@ config DEBUG_VIRTUAL
 
           If unsure, say N.
 
+config DEBUG_NOMMU_REGIONS
+        bool "Debug the global anon/private NOMMU mapping region tree"
+        depends on DEBUG_KERNEL && !MMU
+        help
+          This option causes the global tree of anonymous and private mapping
+          regions to be regularly checked for invalid topology.
+
 config DEBUG_WRITECOUNT
         bool "Debug filesystem writers count"
         depends on DEBUG_KERNEL
@@ -566,14 +573,14 @@ config DEBUG_NOTIFIERS
 config FRAME_POINTER
         bool "Compile the kernel with frame pointers"
         depends on DEBUG_KERNEL && \
-                (X86 || CRIS || M68K || M68KNOMMU || FRV || UML || S390 || \
-                 AVR32 || SUPERH || BLACKFIN || MN10300)
-        default y if DEBUG_INFO && UML
-        help
-          If you say Y here the resulting kernel image will be slightly larger
-          and slower, but it might give very useful debugging information on
-          some architectures or if you use external debuggers.
-          If you don't debug the kernel, you can say N.
+                (CRIS || M68K || M68KNOMMU || FRV || UML || S390 || \
+                 AVR32 || SUPERH || BLACKFIN || MN10300) || \
+                ARCH_WANT_FRAME_POINTERS
+        default y if (DEBUG_INFO && UML) || ARCH_WANT_FRAME_POINTERS
+        help
+          If you say Y here the resulting kernel image will be slightly
+          larger and slower, but it gives very useful debugging information
+          in case of kernel bugs. (precise oopses/stacktraces/warnings)
 
 config BOOT_PRINTK_DELAY
         bool "Delay each boot printk message by N milliseconds"