Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 19 Oct 2007 09:24:02 -0600
From:      James <jamesh@lanl.gov>
To:        Andrew Liles <Andrew.Liles@lbi.com>
Cc:        freebsd-questions@freebsd.org
Subject:   Re: FreeBSD hang without panic
Message-ID:  <1192807442.73574.17.camel@secretariat.lanl.gov>
In-Reply-To: <EA6F9EFA97D00C4CA7DAFEAF26CE4DEA01D71C5F@aristotle.wheel.net>
References:  <EA6F9EFA97D00C4CA7DAFEAF26CE4DEA01D71C5F@aristotle.wheel.net>

next in thread | previous in thread | raw e-mail | index | archive | help


> On the machine itself no messages are shown and the machine responds to
> repeated ENTER key presses with the login prompt.  Once you enter "root"
> [ENTER] then no further responses (except line feeds as you press ENTER).
> 
> What kind of hang is this? Could it be a DoS attack? Or is it some
> internal process hanging?  I have a debug kernel but as the only solution
> is a power-off reset, I never get any dump.
> 
> Any suggestions please where I might start to look, or services to
> experiment disabling?
> 


My very first instinct was hardware failure. It has all the right
pieces: intermittent, came out of nowhere, weird problems as a result.

But. In the interests of science: I know you said  existing shells stop
working, but does that include the secure shell? ssh into the box when
it's frying itself and see what happens.

Presumably you've checked the /var/log stuff already?

James



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?1192807442.73574.17.camel>