X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fx86_64%2FKconfig.debug;h=775d211a5cf93983ca1fd97c64f56fc18c3f8213;hb=c9a4b35df9a5e24065e2dd80aa18a381da62339d;hp=e2c6e64a85ec27318d0a76d51e421301e121dd3e;hpb=e1d7a2de6c4249072dd886c129410e11e637ceff;p=linux-2.6

diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
index e2c6e64a85..775d211a5c 100644
--- a/arch/x86_64/Kconfig.debug
+++ b/arch/x86_64/Kconfig.debug
@@ -1,16 +1,23 @@
 menu "Kernel hacking"
 
+config TRACE_IRQFLAGS_SUPPORT
+	bool
+	default y
+
 source "lib/Kconfig.debug"
 
-config INIT_DEBUG
-	bool "Debug __init statements"
-	depends on DEBUG_KERNEL
-	help
-	  Fill __init and __initdata at the end of boot. This helps debugging
-	  illegal uses of __init and __initdata after initialization.
+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 IOMMU_DEBUG
-       depends on GART_IOMMU && DEBUG_KERNEL
+       depends on IOMMU && DEBUG_KERNEL
        bool "Enable IOMMU debugging"
        help
          Force the IOMMU to on even when you have less than 4GB of
@@ -32,6 +39,22 @@ config IOMMU_LEAK
          Add a simple leak tracer to the IOMMU code. This is useful when you
 	 are debugging a buggy device driver that leaks IOMMU mappings.
 
+config DEBUG_STACKOVERFLOW
+        bool "Check for stack overflows"
+        depends on DEBUG_KERNEL
+        help
+	  This option will cause messages to be printed if free stack space
+	  drops below a certain limit.
+
+config DEBUG_STACK_USAGE
+        bool "Stack utilization instrumentation"
+        depends on DEBUG_KERNEL
+        help
+	  Enables the display of the minimum amount of free stack which each
+	  task has ever had available in the sysrq-T and sysrq-P debug output.
+
+	  This option will slow down process creation somewhat.
+
 #config X86_REMOTE_DEBUG
 #       bool "kgdb debugging stub"