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Message-ID: <tip-cac455509f22fede26b04889a8d2199af694a903@git.kernel.org>
Date:	Fri, 12 Jun 2009 12:42:28 GMT
From:	tip-bot for Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	akpm@...ux-foundation.org, a.p.zijlstra@...llo.nl,
	tglx@...utronix.de, mingo@...e.hu
Subject: [tip:core/urgent] lockdep: Select frame pointers on x86

Commit-ID:  cac455509f22fede26b04889a8d2199af694a903
Gitweb:     http://git.kernel.org/tip/cac455509f22fede26b04889a8d2199af694a903
Author:     Peter Zijlstra <a.p.zijlstra@...llo.nl>
AuthorDate: Fri, 12 Jun 2009 10:04:01 +0200
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 12 Jun 2009 14:25:00 +0200

lockdep: Select frame pointers on x86

x86 stack traces are a piece of crap without frame pointers, and its not
like the 'performance gain' of not having stack pointers matters when you
selected lockdep.

Reported-by: Andrew Morton <akpm@...ux-foundation.org>
LKML-Reference: <new-submission>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Signed-off-by: Ingo Molnar <mingo@...e.hu>


---
 lib/Kconfig.debug |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 6cdcf38..3be4b7c 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -440,7 +440,7 @@ config LOCKDEP
 	bool
 	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
 	select STACKTRACE
-	select FRAME_POINTER if !X86 && !MIPS && !PPC && !ARM_UNWIND && !S390
+	select FRAME_POINTER if !MIPS && !PPC && !ARM_UNWIND && !S390
 	select KALLSYMS
 	select KALLSYMS_ALL
 
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