From owner-freebsd-hackers@FreeBSD.ORG Fri Dec 5 08:38:21 2008 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 976171065675 for ; Fri, 5 Dec 2008 08:38:21 +0000 (UTC) (envelope-from yanefbsd@gmail.com) Received: from po-out-1718.google.com (po-out-1718.google.com [72.14.252.152]) by mx1.freebsd.org (Postfix) with ESMTP id 6A3E68FC19 for ; Fri, 5 Dec 2008 08:38:21 +0000 (UTC) (envelope-from yanefbsd@gmail.com) Received: by po-out-1718.google.com with SMTP id y22so6870163pof.3 for ; Fri, 05 Dec 2008 00:38:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to :subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=Rlw3AxNIA0hKHpm0eneE+TPWeXnBGwgVuIhWlQ1T8ZE=; b=Gwggu179q9Se5Nqwg7WlsiTbcjIgTQhWZFSX2tzTm3TCAx96kdSpHXW6wSGX2axqgt +lpUWEdax8j7zaZOUxLyzv+Zbz02+dFLb2pJ6fl2vtBsIjzD9d/gChGBJGp08ZvoYzHX RYqNihhMzX6qvkoQbbi65sC7MKXz3ngSlymhc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:cc:in-reply-to:mime-version :content-type:content-transfer-encoding:content-disposition :references; b=Ay+ou5mEEdXrll1PpbYEt2mjxddoEipVNpSaVqA2iwgxBKjC9W405p1JkkoTK7zOzh 8BMKtw6rRarXzy4AE329utoToGiNLbLwWZO7X0ZC0Q4DLM+cGVv4tMXAAkzP4o9nYlWL o5bcUcy8/Uan1F2hWT8r44jqs/VAcpO1leYpc= Received: by 10.140.172.20 with SMTP id u20mr7402556rve.244.1228466301227; Fri, 05 Dec 2008 00:38:21 -0800 (PST) Received: by 10.140.158.13 with HTTP; Fri, 5 Dec 2008 00:38:21 -0800 (PST) Message-ID: <7d6fde3d0812050038m766ecd92j352ab33bc37b6c8e@mail.gmail.com> Date: Fri, 5 Dec 2008 00:38:21 -0800 From: "Garrett Cooper" To: perryh@pluto.rain.com In-Reply-To: <4938e20c.nP8q+JgDZ0gKUsAU%perryh@pluto.rain.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <49300020.6060603@icyb.net.ua> <49382449.80002@icyb.net.ua> <4938e20c.nP8q+JgDZ0gKUsAU%perryh@pluto.rain.com> Cc: freebsd-hackers@freebsd.org, avg@icyb.net.ua Subject: Re: ichwd problem: watchdog doesn't "bark" X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Dec 2008 08:38:21 -0000 On Fri, Dec 5, 2008 at 12:10 AM, wrote: > [dropped stable@ since I'm not on it and > I suspect it may not accept non-member posts] > >> BTW, can someone knowledgeable tell me if watchdog better >> be firing SMI or NMI when it runs down? >> My bet is on NMI, but who knows. > > It may depend on whether you want the BIOS, or FreeBSD, handling > the interrupt. Unless you are running *very* old h/w, there's a > good chance the BIOS intercepts SMI, even with a protected-mode > OS running, and I wouldn't be surprised if the BIOS' response to > a watchdog timeout were an immediate reboot. It might be good > to check the motherboard and/or BIOS manuals. Yeah. I just recently have embarked on an adventure of installing FreeBSD on my work T61 laptop, and while poking around the BIOS I discovered that NMI could be enabled or disabled, so I'd determine whether or not that feature is available, and see if it's turned on or off. Intel and/or the laptop vendor should be helpful in this pursuit. -Garrett