From owner-freebsd-current Tue Jan 11 16:15:47 2000 Delivered-To: freebsd-current@freebsd.org Received: from mail.du.gtn.com (mail.du.gtn.com [194.77.9.57]) by hub.freebsd.org (Postfix) with ESMTP id 6E00815326 for ; Tue, 11 Jan 2000 16:15:40 -0800 (PST) (envelope-from ticso@cicely8.cicely.de) Received: from mail.cicely.de (cicely.de [194.231.9.142]) by mail.du.gtn.com (8.9.3/8.9.3) with ESMTP id BAA19954; Wed, 12 Jan 2000 01:15:07 +0100 (MET) Received: from cicely8.cicely.de (cicely8.cicely.de [10.1.2.10]) by mail.cicely.de (8.9.0/8.9.0) with ESMTP id BAA05049; Wed, 12 Jan 2000 01:15:07 +0100 (CET) Received: (from ticso@localhost) by cicely8.cicely.de (8.9.3/8.9.2) id BAA01308; Wed, 12 Jan 2000 01:14:49 +0100 (CET) (envelope-from ticso) Date: Wed, 12 Jan 2000 01:14:48 +0100 From: Bernd Walter To: "Justin T. Gibbs" Cc: djb@Wit389306.student.utwente.nl, current@FreeBSD.ORG Subject: Re: Strange SCSI related system hang Message-ID: <20000112011447.B1144@cicely8.cicely.de> References: <20000109134916.A382@relativity.student.utwente.nl> <200001110004.RAA01471@narnia.plutotech.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre3i In-Reply-To: <200001110004.RAA01471@narnia.plutotech.com> Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, Jan 10, 2000 at 05:04:09PM -0700, Justin T. Gibbs wrote: > In article <20000109134916.A382@relativity.student.utwente.nl> you wrote: > > Hi all, > > > > This morning I had a very strange (at least I've never seen it before) SCSI > > related system hang. The system simply stopped responding at 9:30:03 am > > this morning. I found it in this state at 13:20. It had been hanging > > _hard_. No response to console, serial terminal or network. After a hard > > reset the system came back online normally and is working normally again. > > > > Note that the machine had an uptime of 4 days, 14 hours before the problem > > occured and it never happened before. > > > > Could this be a hardware problem? > > Perhaps. Is your WD drive getting hot? The ahc driver believes that, > during a message out phase, the target simply dropped off the bus. > It may be that the ahc driver did something to provoke that, but without > a bus analyzer on the drive, it is hard to know. According to the > progrom counter, we are waiting for the target to request the next > byte at the time this occurs, but that request never comes. If it only happens from time to time it also could be a power loss. Check your power cabling to be shure. -- B.Walter COSMO-Project http://www.cosmo-project.de ticso@cicely.de Usergroup info@cosmo-project.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message