[PATCH] x86_64: Minor string functions optimizations

[linux-2.6] / lib / Kconfig.debug

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index d57fd9181b187ed07856ae0bb845bcc6e93a006b..8bab0102ac739d181bbddc7fc5a14f2d562353c3 100644 (file)
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -101,7 +101,7 @@ config DEBUG_PREEMPT
 
 config DEBUG_MUTEXES
        bool "Mutex debugging, deadlock detection"
-       default y
+       default n
        depends on DEBUG_KERNEL
        help
         This allows mutex semantics violations and mutex related deadlocks
@@ -188,14 +188,22 @@ config FRAME_POINTER
 
 config UNWIND_INFO
        bool "Compile the kernel with frame unwind information"
-       depends on !IA64
-       depends on !MODULES || !(MIPS || PARISC || PPC || SUPERH || SPARC64 || V850)
+       depends on !IA64 && !PARISC
+       depends on !MODULES || !(MIPS || PPC || SUPERH || V850)
        help
          If you say Y here the resulting kernel image will be slightly larger
          but not slower, and it will give very useful debugging information.
          If you don't debug the kernel, you can say N, but we may not be able
          to solve problems without frame unwind information or frame pointers.
 
+config STACK_UNWIND
+       bool "Stack unwind support"
+       depends on UNWIND_INFO
+       depends on X86
+       help
+         This enables more precise stack traces, omitting all unrelated
+         occurrences of pointers into kernel code from the dump.
+
 config FORCED_INLINING
        bool "Force gcc to inline functions marked 'inline'"
        depends on DEBUG_KERNEL