[nSLUG] Broken PCI bus?

Thomas Graham miguel at accesswave.ca
Wed Nov 7 20:56:09 AST 2001


did you check error log ?!? I mean kernel one and system one, I still a bit
confused what problem of your PCI card anyway, possible to explain again ?!?
sorry, I am international student in Cole Harbor, and I do not know a lot of
english, sorry..
----- Original Message -----
From: "Matt Yanchyshyn" <matthewy at cs.dal.ca>
To: <nslug at nslug.ns.ca>
Sent: Wednesday, November 07, 2001 4:02 PM
Subject: Re: [nSLUG] Broken PCI bus?


> -----BEGIN PGP SIGNED MESSAGE-----
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> On November 7, 2001 03:15 pm, you wrote:
> > would you mind to send us ifconfig msg before broken, after broken and
> > pickup again msg ?
> > I need some info about that ..
> > Thanks
>
> ifconfig will return nothing irregular -- just the old ip address, though
new
> dhcp calls won't work... and if I manually configure the eth device (with
a
> static ip, gateway, etc) then all outgoing/incoming connections still
fail.
> - From ping right on up...
>
> Essentially, there are no error messages -- if there were, it'd be a whole
> lot easier to debug, I guess.
>
> cheers,
> Matt
>
> > ----- Original Message -----
> > From: "Matt Yanchyshyn" <matthewy at cs.dal.ca>
> > To: <nslug at nslug.ns.ca>
> > Sent: Wednesday, November 07, 2001 2:33 PM
> > Subject: [nSLUG] Broken PCI bus?
> >
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > >
> > > Hello everyone..
> > >
> > > I've had this weird problem with my network for about a year now..
I've
> >
> > come
> >
> > > up with many solutions, workarounds and fixes and I seem to have
finally
> > > found the problem: it seems as though on the firewall machine,
PCI-based
> > > cards (I've tried 3Com and Realtek NE2K-compat PCI)  cause the
> > > internet connection to "die" -- the (cable) modem lights stay fine..
but
> >
> > the
> >
> > > connection ceases to work.  I know that it's not the card's fault
because
> > > I've now tried 3 PCI cards (all different chips) and they all generate
> > > the same problems while ISA cards do not.  Also, these cards seem to
work
> >
> > alright
> >
> > > with the modem on other machines.
> > >
> > > The weird thing is, when I simply reset the modem, leaving the
(possibly)
> > > broken computer untouched, the connection picks up again... for
another
> > > 10 minutes or whatever random value it chooses.
> > >
> > > I have the internal network running through a seperate ISA card and it
> >
> > works
> >
> > > fine.  Come to think of it, I've run the internal network through the
PCI
> > > card(s) and that works fine too.  This seems to be a problem explicity
> > > between the modem and one machine's PCI network cards.
> > >
> > > Have you guys every heard/seen something like this before? Am I
correct
> > > in thinking that the PCI bus might be broken somehow, therefore
causing
> > > the modem to "shutdown" and need to be reset? How would it do so?
> > > ...naively
> >
> > I'm
> >
> > > imagining a short of some kind sending a bogus signal or electrical
jolt
> >
> > up
> >
> > > the network wire and into the modem.  Would simply picking up a new
modem
> > > from Eastlink solve this? How can I diagnose the PCI bus if indeed
there
> > > might be a problem there? Or can one bad card, no matter where it is
on
> >
> > the
> >
> > > network, cause the modem to cease sending/receiving packets?
> > >
> > > Any comments/help would be greatly appreciated.
> > >
> > > Cheers...
> > > Matt
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