Date: Mon, 22 May 95 14:11:26 EDT From: mmead@Glock.COM (matthew c. mead) To: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> Subject: Re: Diagnostics for a hanging machine? Message-ID: <199505221812.OAA10003@Glock.COM> Resent-Message-ID: <199505221812.OAA10003@Glock.COM> In-Reply-To: Your message of Mon, May 22, 1995 10:57:23 -0700 References: <199505221427.KAA09095@Glock.COM> <199505221757.KAA05233@gndrsh.aac.dev.com>
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On Mon, May 22, 1995 at 10:57:23 (-0700), Rodney W. Grimes wrote:
> > The ACM student chapter at Virginia Tech has a FreeBSD machine for
> > our members use which I administrate. Recently FreeBSD was installed on
> > this machine in favor of NetBSD, and we are experiencing frequent machine
> > hangs. It appears the hangs are hardware related, as they also occurred in
> > NetBSD. Unfortunately what happens is the machine gets frozen on a vty,
> > and does not go through a clean reboot. Does anyone know of a diagnostic
> > utility that could either constantly spew information to disk, or
> > (preferably) across the net to a machine that's more stable so we can find
> > out what's going on? Any help whatsoever is appreciated; we really need to
> > get the machine stable. Thanks!
> Infinite network copy:
> rcp /dev/zero someremotehost:/someremotedir/someremotefile
> Infinite disk copy:
> dd if=/dev/zero of=/somedir/somefile
I will try these out tonight.
> Could you go into gory details about what the hardware is so that I
> might be able to spot something that might lay a hand on just what
> it is that might be broken?
It's a 486dx2/66 on an EISA motherboard (not sure whose, I can
check if it's helpful) with 16M ram, a MAXTOR 639M SCSI I drive, a BusTek
742a SCSI controller, a plain jane vga card, and an NE2000 clone. In the
past we were running NetBSD and had hangs with this same NE2000 ethernet
card. Switching to a WD ethernet card stopped the hangs but it would still
panic and reboot sometimes. I want to order an SMC card and see if it
stops. Speaking of which, do you sell them?
-matt
--
Matthew C. Mead -> Virginia Tech Center for Transportation Research -
-> Multiple Platform System and Network Administration
Work Related -> mmead@ctr.vt.edu | mmead@goof.com <- All Other
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