linux-kernel - Re: [2/2] vmallocinfo: Add caller information

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Message-ID: <20080321110008.GW20420@elte.hu>
Date:	Fri, 21 Mar 2008 12:00:08 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Christoph Lameter <clameter@....com>
Cc:	akpm@...ux-foundation.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [2/2] vmallocinfo: Add caller information


* Christoph Lameter <clameter@....com> wrote:

> On Wed, 19 Mar 2008, Ingo Molnar wrote:
> 
> > 
> > * Christoph Lameter <clameter@....com> wrote:
> > 
> > > Add caller information so that /proc/vmallocinfo shows where the 
> > > allocation request for a slice of vmalloc memory originated.
> > 
> > please use one simple save_stack_trace() instead of polluting a dozen 
> > architectures with:
> 
> save_stack_trace() depends on CONFIG_STACKTRACE which is only 
> available when debugging is compiled it. I was more thinking about 
> this as a generally available feature.

then make STACKTRACE available generally via the patch below.

	Ingo

------------------------------------------->
Subject: debugging: always enable stacktrace
From: Ingo Molnar <mingo@...e.hu>
Date: Fri Mar 21 11:48:32 CET 2008

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 lib/Kconfig.debug |    1 -
 1 file changed, 1 deletion(-)

Index: linux-x86.q/lib/Kconfig.debug
===================================================================
--- linux-x86.q.orig/lib/Kconfig.debug
+++ linux-x86.q/lib/Kconfig.debug
@@ -387,7 +387,6 @@ config DEBUG_LOCKING_API_SELFTESTS
 
 config STACKTRACE
 	bool
-	depends on DEBUG_KERNEL
 	depends on STACKTRACE_SUPPORT
 
 config DEBUG_KOBJECT
--
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