exclude irq in config.opts ignored and other pcmcia problems

jonathan.share at syngenta.com jonathan.share at syngenta.com
Thu Apr 22 10:02:30 UTC 2004



> -----Original Message-----
> From: Rick Stevens [mailto:rstevens at vitalstream.com]
> Sent: Mittwoch, 21. April 2004 18:17
> To: Getting started with Red Hat Linux
> Subject: Re: exclude irq in config.opts ignored and other pcmcia
> problems
> 
> 
> jonathan.share at syngenta.com wrote:
> > Hi,
> > 
> > I have just installed Fedora Core 1 on my laptop(more 
> details provided on
> > request). All devices were detected and installed correctly the only
> > problems I am having are with my PCMCIA network card 
> (Realtek RTL 8139
> > based).
> > 
> > Firstly on boot the kernel attempts to load the 8139cp 
> driver which fails
> > suggesting I use the 8139too driver. If after booting if I 
> attempt to bring
> > the interface up the 8139too driver gets installed without 
> complaint. I do
> > not understand why a different driver is selected here, can 
> anyone enlighten
> > me on this point?
> 
> I don't know why the 8139cp is being selected since it's not listed in
> /etc/pcmcia/config, but the 8139too works for me just fine (granted
> that it's not a PCMCIA card in my machine but built-in on the 
> PCI bus).
> 
> Edit your /etc/modules.conf file and modify the "alias eth0 
> 8139cp" line
> to read "alias eth0 8139too".  The 8139too driver should load on your
> next boot.

This was the first thing I did when I noticed the messages, there is no
change in the actions when the card is inserted/the computer boots.

> 
> > Secondly configuration by DHCP sometimes fails sometimes 
> doesn't. If I bring
> > the interface up using manual configuration then pinging 
> any other device on
> > my network yields anywhere between 20 and 70% packet loss. 
> This will not
> > even support a telnet session. Investigation into this 
> problem has shown me
> > that all my devices are being piled on IRQ 5 and believe 
> this could be part
> > of my problem. I tried adding exclude irq 5 to my
> > /etc/sysconfig/pcmcia/config.opts file but this appears to 
> be ignored. What
> > am I doing wrong?
> 
> I think you mean /etc/pcmcia/config.opts.  Judging by your 

You are right here I realised this mistake when I got home and took another
look at the files.

> description,
> you're booting up with the card in place already.  Try 
> booting with the
> card unplugged, wait for the system to come up, THEN plug the card in
> and see if it behaves differently.  I rather believe that that file is
> only consulted if the card is plugged in after the machine is up, but
> I've never delved deeply into the sequence of events of PCMCIA card
> insertion.

Tried this as well.

Any other ideas?

> 
> I have a similar config, but everything lives on IRQ 11 (eth0, wlan0,
> USB, firewire, audio accelerator and the cardbus bridges).  I 
> doubt that
> is your problem.
> ----------------------------------------------------------------------
> - Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> - VitalStream, Inc.                       http://www.vitalstream.com -
> -                                                                    -
> -  Time: Nature's way of keeping everything from happening at once.  -
> ----------------------------------------------------------------------
> 
> 
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