Killing X server using ctrl-alt-bksp screws up eth0???

[Lisa Winkler]

You're right, theoretically IRQ sharing shouldn't be a problem.  But some cards
are non-compliant and don't like to share an IRQ.  The other 2 cards in question
are a SB Live and a Matrox G400 so I would expect they are ok.  Not sure about
the NIC but now it's on a separate IRQ and the problem still exists.  Maybe it's
not IRQs.  Anyway, my BIOS doesn't seem to have this setting - it gives me
almost no control over my IRQs.  Good thing I am not trying to run any legacy
devices.

The dri driver also complains about dumping some memory when I do this.  Next
time I try it I'll capture the error message.


> -----Original Message-----
> From: plug-discuss-admin@lists.plug.phoenix.az.us
> [mailto:plug-discuss-admin@lists.plug.phoenix.az.us]On Behalf Of Nancy
> Sollars
> Sent: Sunday, February 03, 2002 12:15 PM
> To: plug-discuss@lists.plug.phoenix.az.us
> Subject: Re: Killing X server using ctrl-alt-bksp screws up eth0???
>
>
>
> ----- Original Message -----
> From: "Lisa Winkler" <lmw@po.cwru.edu>
> To: <plug-discuss@lists.plug.phoenix.az.us>
> Sent: Sunday, February 03, 2002 9:10 AM
> Subject: RE: Killing X server using ctrl-alt-bksp screws up eth0???
>
>
> > Wow, my graphics, sound, and nic were all on IRQ 5!  That doesn't seem
> like a
> > good thing.
>
> In your bios youl have something called .. IRQ Holder for PCI Steering .. Or
> just PCI Steering..
>
> IRQ sharing is not uncommon now since the number of IRQ's has'nt changed ...
>
> you can blame the X86 hardware design for that same as the 640k base issue.
>
> Just because you have devices on the same IRQ does'nt mean its bad thing.
>
> Nige
>
> >
> > I swapped some cards around in different slots and now I have the nic on
> IRQ 11
> > and the others still on IRQ 5.  Still the same problem with killing X
> though.
> >
> > > -----Original Message-----
> > > From: plug-discuss-admin@lists.plug.phoenix.az.us
> > > [mailto:plug-discuss-admin@lists.plug.phoenix.az.us]On Behalf Of Craig
> > > White
> > > Sent: Sunday, February 03, 2002 7:32 AM
> > > To: plug-discuss@lists.plug.phoenix.az.us
> > > Subject: Re: Killing X server using ctrl-alt-bksp screws up eth0???
> > >
> > >
> > > On Sun, 2002-02-03 at 00:14, Lisa Winkler wrote:
> > > > Well, I don't remember exactly which card is in there (I seem to go
> > > through NICs like other people go through socks) but dmesg says:
> > > >
> > > > Linux Tulip driver version 0.9.15-pre8 (Oct 11, 2001)
> > > > PCI: Found IRQ 5 for device 00:09.0
> > > > eth0: Macronix 98715 PMAC rev 32
> > > >
> > > > I suppose I could recompile my kernel with a couple of the
> > > different modular drivers that might work.  I was thinking of doing
> > > that anyway, just procrastinating.
> > > >
> > > > But the bigger question I have is, why would killing the X server
> > > have any effect on a NIC driver (on the kernel itself) ??  Maybe
> > > there is something else wrong here...
> > > >
> > > ----
> > > IRQ 5 is a normal location for a sound card - Perhaps it isn't about
> > > killing the X server, perhaps it's about not managing the sound
> > > interrupt that created a problem when X was launched.
> > >
> > > Typically, if you have a plug and play network card, if you move it to a
> > > different slot, you can move it to another PCI slot and it will find an
> > > unused IRQ and the OS should have no problem making the switch.
> > >
> > > Craig
> > >
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