From owner-freebsd-hackers@FreeBSD.ORG Wed Jun 30 23:35:16 2010 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 6A0FA106566C for ; Wed, 30 Jun 2010 23:35:16 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from tarsier.geekcn.org (tarsier.geekcn.org [IPv6:2001:470:a803::1]) by mx1.freebsd.org (Postfix) with ESMTP id 1254A8FC17 for ; Wed, 30 Jun 2010 23:35:16 +0000 (UTC) Received: from mail.geekcn.org (tarsier.geekcn.org [211.166.10.233]) by tarsier.geekcn.org (Postfix) with ESMTP id 6BEC9A58203; Thu, 1 Jul 2010 07:35:14 +0800 (CST) X-Virus-Scanned: amavisd-new at geekcn.org Received: from tarsier.geekcn.org ([211.166.10.233]) by mail.geekcn.org (mail.geekcn.org [211.166.10.233]) (amavisd-new, port 10024) with LMTP id LUerZTxI9WZb; Thu, 1 Jul 2010 07:35:05 +0800 (CST) Received: from delta.delphij.net (drawbridge.ixsystems.com [206.40.55.65]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by tarsier.geekcn.org (Postfix) with ESMTPSA id 1E1DEA57FDC; Thu, 1 Jul 2010 07:34:52 +0800 (CST) DomainKey-Signature: a=rsa-sha1; s=default; d=delphij.net; c=nofws; q=dns; h=message-id:date:from:reply-to:organization:user-agent: mime-version:to:cc:subject:references:in-reply-to: x-enigmail-version:openpgp:content-type:content-transfer-encoding; b=B2xr286gBl+JMc9/L6WOGiDJtwVOaBY2cpe74gH1/x8aakC57UPrmcfRIHqrTLZMa aFp07w3k0vhQmdgKhi99A== Message-ID: <4C2BD498.3090704@delphij.net> Date: Wed, 30 Jun 2010 16:34:48 -0700 From: Xin LI Organization: The Geek China Organization User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.1.10) Gecko/20100629 Thunderbird/3.0.5 ThunderBrowse/3.3 MIME-Version: 1.0 To: =?UTF-8?B?RGFnLUVybGluZyBTbcO4cmdyYXY=?= References: <4C2B07F5.6030801@delphij.net> <4C2B4D35.8060903@feral.com> <86lj9wmbrz.fsf@ds4.des.no> <4C2BBF3C.4070503@delphij.net> <86hbkkmad1.fsf@ds4.des.no> In-Reply-To: <86hbkkmad1.fsf@ds4.des.no> X-Enigmail-Version: 1.0.1 OpenPGP: id=3FCA37C1; url=http://www.delphij.net/delphij.asc Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cc: Matthew Jacob , d@delphij.net, freebsd-hackers@freebsd.org Subject: Re: Supermicro BIOS's watchdog feature? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: d@delphij.net List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 Jun 2010 23:35:16 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2010/06/30 15:19, Dag-Erling Smørgrav wrote: > Xin LI writes: >> Hmm... Sorry I think I didn't described the behavior accurately. >> Currently if I enable the "Watch Dog" option in BIOS, the system >> reboots after ~5 mins regardless whether I have ichwd(4) and >> watchdogd(8) loaded. > > Perhaps the motherboard has additional watchdog hardware? If you > disable the watchdog in BIOS, does ichwd still work? If I kill -9 watchdogd the system do reset itself so I think ichwd(4) really works even if BIOS setting is 'Disabled' (but I'm not sure if this method is right? Looking at the code I think the answer is probably "Yes" though) Cheers, - -- Xin LI http://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.15 (FreeBSD) iQEcBAEBCAAGBQJMK9SYAAoJEATO+BI/yjfBUYIH/jPJX3kEZt7o9sia7+H21SBX xtuRZ+bz7q0dPKmdpHVPuWZNUB7mauFgtlZdUcu7gx1bKLb8XrOO7FuUmh6n8QXy MwzeCVnZCW8EbSthkOaJf7KnQjC6QebcRtSJr9buldYv7U5AW7YpzDyOwk7AhjOc YBK12GSkmz/b9FtURh6NECtzY3v5W8cquHGHhLMVFe1t7/gKF2KVOHE8MEKjGG8a dlG6JE4SJtFT7Y3utHZqHoDZkuI3SBdXY31PYFoUY31LSJ5cSkzA/3eYbB7l1WL6 BjhLAb1qeBwYyF3nzWYPtv/dtWs0dlxEtUGu2XFXr/vejCQ2VNdkGJN1FGkAjY4= =fvdq -----END PGP SIGNATURE-----