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"
 
 menu "Kernel hacking"
 

+config TRACE_IRQFLAGS_SUPPORT
+       bool
+       default y
+

 source "lib/Kconfig.debug"
 
 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
 
 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
        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.
 
         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
 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.
 
          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"
 
 #config X86_REMOTE_DEBUG
 #       bool "kgdb debugging stub"