linux-kernel - Re: linux-next: kgdb tree build warning

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Message-ID: <4B32E95C.3030201@windriver.com>
Date:	Wed, 23 Dec 2009 22:09:00 -0600
From:	Jason Wessel <jason.wessel@...driver.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: linux-next: kgdb tree build warning

Stephen Rothwell wrote:
> Hi Jason,
>
> Today's linux-next build (x86_64_allmodconfig) produced this warning:
>
> kernel/debug/kdb/kdb_bp.c: In function 'kdb_bp':
> kernel/debug/kdb/kdb_bp.c:434: warning: the frame size of 32880 bytes is larger than 2048 bytes
>
> Introduced by commit 16f40ed7bd0ad29dcde7a05b8a07f5ba10937277 ("kdb: core
> for kgdb back end").
>
>   

Using gcc 4.3, I did not see this error.   What compiler or compiler
options did you use to get this?

I assume it means the stack space was exhausted and a casual glance at
the code did not yield anything obvious like a large array on the stack
or anything.  It is conceivable that there is an inline function that is
the source of the problem, but I would like to be able to duplicate it.

Thanks,
Jason.
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