Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261658AbTITCdL (ORCPT ); Fri, 19 Sep 2003 22:33:11 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261659AbTITCdL (ORCPT ); Fri, 19 Sep 2003 22:33:11 -0400 Received: from holomorphy.com ([66.224.33.161]:6622 "EHLO holomorphy") by vger.kernel.org with ESMTP id S261658AbTITCdJ (ORCPT ); Fri, 19 Sep 2003 22:33:09 -0400 Date: Fri, 19 Sep 2003 19:34:15 -0700 From: William Lee Irwin III To: John Wendel Cc: linux-kernel@vger.kernel.org Subject: Re: [ATTN IBM Guys] NMI count on X440 box Message-ID: <20030920023415.GD4306@holomorphy.com> Mail-Followup-To: William Lee Irwin III , John Wendel , linux-kernel@vger.kernel.org References: <20030919193103.1d08fbff.jwendel10@comcast.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030919193103.1d08fbff.jwendel10@comcast.net> Organization: The Domain of Holomorphy User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 843 Lines: 20 On Fri, Sep 19, 2003 at 07:31:03PM -0700, John Wendel wrote: > I just noticed that our 8-way X440 is showing (in /proc/interrupts) > about 100 NMIs / second, on each CPU. Would some kind soul please tell > me if this is OK? A brief explanation of what this interrupt is being > used for would be appreciated. > We're running the latest RH Advanced server kernel. > > Sorry if this is a stupid question. A common use for intentional NMI's is NMI-based profiling, i.e. oprofile. I can't say for sure this is where your NMI's are coming from without seeing more about your kernel. -- wli - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/