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Date: Mon, 24 May 2004 02:34:53 -0700
From: Andrew Morton <akpm@osdl.org>
To: AKIYAMA Nobuyuki <akiyama.nobuyuk@jp.fujitsu.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] NMI trigger switch support for debugging
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AKIYAMA Nobuyuki <akiyama.nobuyuk@jp.fujitsu.com> wrote:
>
> Therefore this feature cannot be used at the same time with oprofile
>  and NMI watchdog. This feature hands NMI interrupt over to oprofile
>  and NMI watchdog. So, when they have been activated, this feature
>  doesn't work even if it is activated.

An API was recently added to solve this.  See reserve_lapic_nmi() and
release_lapic_nmi().