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>
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> 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
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