Date: Wed, 12 Jan 2000 01:14:48 +0100 From: Bernd Walter <ticso@cicely.de> To: "Justin T. Gibbs" <gibbs@narnia.plutotech.com> Cc: djb@Wit389306.student.utwente.nl, current@FreeBSD.ORG Subject: Re: Strange SCSI related system hang Message-ID: <20000112011447.B1144@cicely8.cicely.de> In-Reply-To: <200001110004.RAA01471@narnia.plutotech.com> References: <20000109134916.A382@relativity.student.utwente.nl> <200001110004.RAA01471@narnia.plutotech.com>
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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
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