linux-kernel - Re: [PATCH 1/4] nmi_watchdog: use a boolean config flag for compiling

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Message-ID: <20100215175106.GM3062@redhat.com>
Date:	Mon, 15 Feb 2010 12:51:06 -0500
From:	Don Zickus <dzickus@...hat.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org, peterz@...radead.org,
	gorcunov@...il.com, aris@...hat.com
Subject: Re: [PATCH 1/4] nmi_watchdog: use a boolean config flag for compiling

On Sun, Feb 14, 2010 at 05:59:41PM +0100, Ingo Molnar wrote:
> 
> i'm still getting build failures:
> 
> arch/x86/built-in.o: In function `arch_trigger_all_cpu_backtrace':
> (.text+0x151f5): undefined reference to `apic'
> 
> config attached.

Hmm, I can't get the config to match up properly when I run 'make
oldconfig', even though I am using the HEAD of perf/nmi.  I took the
defaults anyway and used 'ARCH=i386 make all' but couldn't reproduce your
build failure.

Looking through the code, is there ever case where 'apic' is undefined?
The arch_trigger_all_cpu_backtrace should match identically to the old nmi
code, so I am stuck on how to fix this.

Thoughts?

Cheers,
Don
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