fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / x86_64 / Kconfig.debug

diff --git a/arch/x86_64/Kconfig.debug b/arch/x86_64/Kconfig.debug
index 9cf1410..775d211 100644 (file)
--- a/arch/x86_64/Kconfig.debug
+++ b/arch/x86_64/Kconfig.debug
@@ -1,25 +1,23 @@
 menu "Kernel hacking"
 
+config TRACE_IRQFLAGS_SUPPORT
+       bool
+       default y
+
 source "lib/Kconfig.debug"
 
-# !SMP for now because the context switch early causes GPF in segment reloading
-# and the GS base checking does the wrong thing then, causing a hang.
-config CHECKING
-       bool "Additional run-time checks"
-       depends on DEBUG_KERNEL && !SMP
-       help
-         Enables some internal consistency checks for kernel debugging.
-         You should normally say N.
-
-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
@@ -33,16 +31,6 @@ config IOMMU_DEBUG
         options. See Documentation/x86_64/boot-options.txt for more
         details.
 
-config KPROBES
-       bool "Kprobes"
-       depends on DEBUG_KERNEL
-       help
-         Kprobes allows you to trap at almost any kernel address and
-         execute a callback function.  register_kprobe() establishes
-         a probepoint and specifies the callback.  Kprobes is useful
-         for kernel debugging, non-intrusive instrumentation and testing.
-         If in doubt, say "N".
-
 config IOMMU_LEAK
        bool "IOMMU leak tracing"
        depends on DEBUG_KERNEL
@@ -51,6 +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"