linux-kernel - [tip:core/locking] lockdep: require framepointers for x86

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Message-ID: <tip-1075414b06109a99b0e87601e84c74a95bd45681@git.kernel.org>
Date:	Wed, 4 Mar 2009 17:42:22 GMT
From:	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,
	a.p.zijlstra@...llo.nl, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:core/locking] lockdep: require framepointers for x86

Commit-ID:  1075414b06109a99b0e87601e84c74a95bd45681
Gitweb:     http://git.kernel.org/tip/1075414b06109a99b0e87601e84c74a95bd45681
Author:     "Peter Zijlstra" <a.p.zijlstra@...llo.nl>
AuthorDate: Wed, 4 Mar 2009 12:27:27 +0100
Commit:     Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 4 Mar 2009 18:39:23 +0100

lockdep: require framepointers for x86

Require framepointers for x86, because otherwise we'll be having
empty stack traces, which is useless.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl>
LKML-Reference: <1236167295.5330.7240.camel@...top>
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 29044f5..9b4efb1 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -402,7 +402,7 @@ config LOCKDEP
 	bool
 	depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
 	select STACKTRACE
-	select FRAME_POINTER if !X86 && !MIPS && !PPC
+	select FRAME_POINTER if !MIPS && !PPC
 	select KALLSYMS
 	select KALLSYMS_ALL
 
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