Remove stack unwinder for now

It has caused more problems than it ever really solved, and is
apparently not getting cleaned up and fixed.  We can put it back when
it's stable and isn't likely to make warning or bug events worse.

In the meantime, enable frame pointers for more readable stack traces.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 0 insertions, 18 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 818e4589f718..5c2681875b9a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -354,24 +354,6 @@ config FRAME_POINTER
           some architectures or if you use external debuggers.
           If you don't debug the kernel, you can say N.
 
-config UNWIND_INFO
-        bool "Compile the kernel with frame unwind information"
-        depends on !IA64 && !PARISC && !ARM
-        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