linux-kernel - Re: 2.6.22-rc6-mm1

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Message-ID: <46890A52.6020201@ru.mvista.com>
Date:	Mon, 02 Jul 2007 18:23:14 +0400
From:	Sergei Shtylyov <sshtylyov@...mvista.com>
To:	Jason Wessel <jason.wessel@...driver.com>
Cc:	kgdb-bugreport@...ts.sourceforge.net,
	Mariusz Kozlowski <m.kozlowski@...land.pl>,
	Andrew Morton <akpm@...ux-foundation.org>, paulus@...ba.org,
	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: 2.6.22-rc6-mm1

Hello.

Jason Wessel wrote:

>>>     allmodconfig on powerpc (iMac g3) fails due to
>>> git-kgdb.patch. allmodconfig defaults should be changed?

>>>   CC      arch/powerpc/kernel/kgdb.o
>>> arch/powerpc/kernel/kgdb.c:485:2: error: #error Both XMON and KGDB 
>>> selected in .config. Unselect one of them.
>>> make[1]: *** [arch/powerpc/kernel/kgdb.o] Blad 1
>>> make: *** [arch/powerpc/kernel] Blad 2

>>     I'm not sure if this will work out but maybe it's worth to disable 
>> XMON if KGDB is selected, like this?
>> config XMON
>>     bool "Include xmon kernel debugger"
>>     depends on DEBUGGER && !KGDB

> It did not seem that you can make a radio button / multi-select kernel 
> config option unless the options are in the same Kconfig file.  Given 
> that xmon and kgdb are mutually exclusive at the moment.

> What Sergei mentioned is the fix that needs to be used for the time being.
> Attached is the patch I put in the for_mm branch in the linux-2.6-kgdb 
> git tree.

> Jason.

> ------------------------------------------------------------------------

> xmon_or_kgdb.patch

> From: Jason Wessel <jason.wessel@...driver.com>
> Subject: [PATCH] Turn off xmon if kgdb is active on ppc and powerpc

> Xmon and kgdb are mutuall exclusive at the moment so xmon should be
> turned off in the kernel config options if kgdb selected.  The case with "make allmodconfig" was failing and this patch addresses the problem.

> Signed-off-by: Jason Wessel <jason.wessel@...driver.com>

> ---
>  arch/powerpc/Kconfig.debug |    2 +-
>  arch/ppc/Kconfig.debug     |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)

    This patch does not seem complete as the #error that was tiggering has not 
been deleleted from arch/powerpc/kernel/kgdb.c (and not it's useless)

WBR, Sergei
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