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authorIngo Molnar <mingo@elte.hu>2008-01-30 13:33:32 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:33:32 +0100
commit11201e603d28a1cb7a4bb1d65f39e61629c97a28 (patch)
tree07504e9c3c39682a28a2ea368bc7a20a6a943317 /arch
parent8a45eb31d832af5441703bf447c97f786ff850a4 (diff)
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/Kconfig.debug6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 0a82b889d76..9bb61e1aed6 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"