vserver 1.9.5.x5

[linux-2.6.git] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index cd5d859..388af7c 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1,14 +1,14 @@
 
 config DEBUG_KERNEL
        bool "Kernel debugging"
 
 config DEBUG_KERNEL
        bool "Kernel debugging"

-       depends on (ALPHA || ARM || CRIS || H8300 || X86 || IA64 || M68K || M68KNOMMU || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || SUPERH || SUPERH64 || SPARC32 || SPARC64 || USERMODE || V850 || X86_64)
+       depends on (ALPHA || ARM || CRIS || H8300 || X86 || IA64 || M32R || M68K || M68KNOMMU || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || SUPERH || SUPERH64 || SPARC32 || SPARC64 || USERMODE || V850 || X86_64)

        help
          Say Y here if you are developing drivers or trying to debug and
          identify kernel problems.
 
 config MAGIC_SYSRQ
        bool "Magic SysRq key"
        help
          Say Y here if you are developing drivers or trying to debug and
          identify kernel problems.
 
 config MAGIC_SYSRQ
        bool "Magic SysRq key"

-       depends on DEBUG_KERNEL && (ALPHA || ARM || X86 || IA64 || M68K || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || SUPERH || SUPERH64 || SPARC32 || SPARC64 || X86_64)
+       depends on DEBUG_KERNEL && (ALPHA || ARM || X86 || IA64 || M32R || M68K || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || SUPERH || SUPERH64 || SPARC32 || SPARC64 || X86_64 || USERMODE)

        help
          If you say Y here, you will have some control over the system even
          if the system crashes for example during kernel debugging (e.g., you
        help
          If you say Y here, you will have some control over the system even
          if the system crashes for example during kernel debugging (e.g., you


@@ -23,22 +23,43 @@ config MAGIC_SYSRQ
 config MAGIC_SYSRQ
        bool "Magic SysRq key"
        depends on DEBUG_KERNEL && (H8300 || M68KNOMMU || V850)
 config MAGIC_SYSRQ
        bool "Magic SysRq key"
        depends on DEBUG_KERNEL && (H8300 || M68KNOMMU || V850)

-       depends (USERMODE && MCONSOLE)

        help
          Enables console device to interpret special characters as
          commands to dump state information.
 
        help
          Enables console device to interpret special characters as
          commands to dump state information.
 

+config SCHEDSTATS
+       bool "Collect scheduler statistics"
+       depends on DEBUG_KERNEL && PROC_FS
+       help
+         If you say Y here, additional code will be inserted into the
+         scheduler and related routines to collect statistics about
+         scheduler behavior and provide them in /proc/schedstat.  These
+         stats may be useful for both tuning and debugging the scheduler
+         If you aren't debugging the scheduler or trying to tune a specific
+         application, you can say N to avoid the very slight overhead
+         this adds.
+

 config DEBUG_SLAB
        bool "Debug memory allocations"
 config DEBUG_SLAB
        bool "Debug memory allocations"

-       depends on DEBUG_KERNEL && (ALPHA || ARM || X86 || IA64 || M68K || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || SPARC32 || SPARC64 || USERMODE || X86_64)
+       depends on DEBUG_KERNEL && (ALPHA || ARM || X86 || IA64 || M32R || M68K || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || SPARC32 || SPARC64 || USERMODE || X86_64)

        help
          Say Y here to have the kernel do limited verification on memory
          allocation as well as poisoning memory on free to catch use of freed
        help
          Say Y here to have the kernel do limited verification on memory
          allocation as well as poisoning memory on free to catch use of freed

-         memory.
+         memory. This can make kmalloc/kfree-intensive workloads much slower.
+
+config DEBUG_PREEMPT
+       bool "Debug preemptible kernel"
+       depends on PREEMPT
+       default y
+       help
+         If you say Y here then the kernel will use a debug variant of the
+         commonly used smp_processor_id() function and will print warnings
+         if kernel code uses it in a preemption-unsafe way. Also, the kernel
+         will detect preemption count underflows.

 
 config DEBUG_SPINLOCK
        bool "Spinlock debugging"
 
 config DEBUG_SPINLOCK
        bool "Spinlock debugging"

-       depends on DEBUG_KERNEL && (ALPHA || ARM || X86 || IA64 || MIPS || PPC32 || (SUPERH && !SUPERH64) || SPARC32 || SPARC64 || USERMODE || X86_64)
+       depends on DEBUG_KERNEL && (ALPHA || ARM || X86 || IA64 || M32R || MIPS || PARISC || PPC32 || (SUPERH && !SUPERH64) || SPARC32 || SPARC64 || USERMODE || X86_64)

        help
          Say Y here and build SMP to catch missing spinlock initialization
          and certain other kinds of spinlock errors commonly made.  This is
        help
          Say Y here and build SMP to catch missing spinlock initialization
          and certain other kinds of spinlock errors commonly made.  This is


@@ -47,11 +68,18 @@ config DEBUG_SPINLOCK
 
 config DEBUG_SPINLOCK_SLEEP
        bool "Sleep-inside-spinlock checking"
 
 config DEBUG_SPINLOCK_SLEEP
        bool "Sleep-inside-spinlock checking"

-       depends on DEBUG_KERNEL && (X86 || IA64 || MIPS || PPC32 || PPC64 || ARCH_S390 || SPARC32 || SPARC64)
+       depends on DEBUG_KERNEL && (X86 || IA64 || M32R || MIPS || PPC32 || PPC64 || ARCH_S390 || SPARC32 || SPARC64 || USERMODE)

        help
          If you say Y here, various routines which may sleep will become very
          noisy if they are called with a spinlock held.
 
        help
          If you say Y here, various routines which may sleep will become very
          noisy if they are called with a spinlock held.
 

+config DEBUG_KOBJECT
+       bool "kobject debugging"
+       depends on DEBUG_KERNEL
+       help
+         If you say Y here, some extra kobject debugging messages will be sent
+         to the syslog. 
+

 config DEBUG_HIGHMEM
        bool "Highmem debugging"
        depends on DEBUG_KERNEL && HIGHMEM && (X86 || PPC32 || MIPS || SPARC32)
 config DEBUG_HIGHMEM
        bool "Highmem debugging"
        depends on DEBUG_KERNEL && HIGHMEM && (X86 || PPC32 || MIPS || SPARC32)


@@ -60,8 +88,9 @@ config DEBUG_HIGHMEM
          Disable for production systems.
 
 config DEBUG_BUGVERBOSE
          Disable for production systems.
 
 config DEBUG_BUGVERBOSE

-       bool "Verbose BUG() reporting (adds 70K)"
-       depends on DEBUG_KERNEL && (ARM || ARM26 || M68K || SPARC32 || SPARC64)
+       bool "Verbose BUG() reporting (adds 70K)" if DEBUG_KERNEL && EMBEDDED
+       depends on ARM || ARM26 || M32R || M68K || SPARC32 || SPARC64 || (X86 && !X86_64)
+       default !EMBEDDED

        help
          Say Y here to make BUG() panics output the file name and line number
          of the BUG call as well as the EIP and oops trace.  This aids
        help
          Say Y here to make BUG() panics output the file name and line number
          of the BUG call as well as the EIP and oops trace.  This aids


@@ -69,7 +98,7 @@ config DEBUG_BUGVERBOSE
 
 config DEBUG_INFO
        bool "Compile the kernel with debug info"
 
 config DEBUG_INFO
        bool "Compile the kernel with debug info"

-       depends on DEBUG_KERNEL && (ALPHA || CRIS || X86 || IA64 || M68K || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || (SUPERH && !SUPERH64) || SPARC64 || V850 || X86_64)
+       depends on DEBUG_KERNEL && (ALPHA || CRIS || X86 || IA64 || M32R || M68K || MIPS || PARISC || PPC32 || PPC64 || ARCH_S390 || (SUPERH && !SUPERH64) || SPARC64 || V850 || X86_64)

        help
           If you say Y here the resulting kernel image will include
          debugging info resulting in a larger kernel image.
        help
           If you say Y here the resulting kernel image will include
          debugging info resulting in a larger kernel image.


@@ -88,10 +117,33 @@ config DEBUG_INFO
         If you're truly short on disk space or don't expect to report any
         bugs back to the UML developers, say N, otherwise say Y.
 
         If you're truly short on disk space or don't expect to report any
         bugs back to the UML developers, say N, otherwise say Y.
 

+config DEBUG_IOREMAP
+       bool "Enable ioremap() debugging"
+       depends on DEBUG_KERNEL && PARISC
+       help
+         Enabling this option will cause the kernel to distinguish between
+         ioremapped and physical addresses.  It will print a backtrace (at
+         most one every 10 seconds), hopefully allowing you to see which
+         drivers need work.  Fixing all these problems is a prerequisite
+         for turning on USE_HPPA_IOREMAP.  The warnings are harmless;
+         the kernel has enough information to fix the broken drivers
+         automatically, but we'd like to make it more efficient by not
+         having to do that.
+
+config DEBUG_FS
+       bool "Debug Filesystem"
+       depends on DEBUG_KERNEL
+       help
+         debugfs is a virtual file system that kernel developers use to put
+         debugging files into.  Enable this option to be able to read and
+         write to these files.
+
+         If unsure, say N.
+

 if !X86_64
 config FRAME_POINTER
        bool "Compile the kernel with frame pointers"
 if !X86_64
 config FRAME_POINTER
        bool "Compile the kernel with frame pointers"

-       depends on X86 || CRIS || M68KNOMMU || PARISC
+       depends on X86 || CRIS || M68KNOMMU

        help
          If you say Y here the resulting kernel image will be slightly larger
          and slower, but it will give very useful debugging information.
        help
          If you say Y here the resulting kernel image will be slightly larger
          and slower, but it will give very useful debugging information.