X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;ds=sidebyside;f=lib%2FKconfig.debug;h=388af7c9792716fd556fdb8d88a2c31e913ef7b2;hb=6a77f38946aaee1cd85eeec6cf4229b204c15071;hp=cd5d8596223bcac23430b6fbed620c1602dc7a69;hpb=87fc8d1bb10cd459024a742c6a10961fefcef18f;p=linux-2.6.git

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index cd5d85962..388af7c97 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1,14 +1,14 @@
 
 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"
-	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
@@ -23,22 +23,43 @@ config MAGIC_SYSRQ
 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.
 
+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"
-	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
-	  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"
-	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
@@ -47,11 +68,18 @@ config DEBUG_SPINLOCK
 
 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.
 
+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)
@@ -60,8 +88,9 @@ config DEBUG_HIGHMEM
 	  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
@@ -69,7 +98,7 @@ config DEBUG_BUGVERBOSE
 
 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.
@@ -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.
 
+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"
-	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.