From: Ingo Molnar <mingo@elte.hu>
Date: Wed, 30 Jan 2008 12:33:32 +0000 (+0100)
Subject: x86: fix DEBUG_RODATA kconfig text
X-Git-Tag: v2.6.25-rc1~1143^2~193
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=11201e603d28a1cb7a4bb1d65f39e61629c97a28;p=linux-2.6

x86: fix DEBUG_RODATA kconfig text

fix kconfig text and make DEBUG_RODATA default.

this helps debugging quite a bit.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 0a82b889d7..9bb61e1aed 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -61,13 +61,13 @@ config DEBUG_PER_CPU_MAPS
 
 config DEBUG_RODATA
 	bool "Write protect kernel read-only data structures"
+	default y
 	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".
+	  data. This is recommended so that we can catch kernel bugs sooner.
+	  If in doubt, say "Y".
 
 config 4KSTACKS
 	bool "Use 4Kb for kernel stacks instead of 8Kb"