X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=arch%2Fi386%2FKconfig.debug;h=bf32ecc9ad04908bf20e6b1f76d3250a02aeada6;hb=61c5504a0ed66c8b460f9a006eedaea2ee587e33;hp=c48b424dd6401de05d5c8d3ecbbf661e15f0a78f;hpb=a9931a6e37c09f6b76a9fa0cbd777c335548692b;p=powerpc.git

diff --git a/arch/i386/Kconfig.debug b/arch/i386/Kconfig.debug
index c48b424dd6..bf32ecc9ad 100644
--- a/arch/i386/Kconfig.debug
+++ b/arch/i386/Kconfig.debug
@@ -42,6 +42,16 @@ config DEBUG_PAGEALLOC
 	  This results in a large slowdown, but helps to find certain types
 	  of memory corruptions.
 
+config DEBUG_RODATA
+	bool "Write protect kernel read-only data structures"
+	depends on DEBUG_KERNEL
+	help
+	  Mark the kernel read-only data as write-protected in the pagetables,
+	  in order to catch accidental (and incorrect) writes to such const
+	  data. This option may have a slight performance impact because a
+	  portion of the kernel code won't be covered by a 2MB TLB anymore.
+	  If in doubt, say "N".
+
 config 4KSTACKS
 	bool "Use 4Kb for kernel stacks instead of 8Kb"
 	depends on DEBUG_KERNEL