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Sad: Tecra550CDT and 2 ethernets IRQ problem 

Forum: PCMCIA on Toshiba laptops
Date: 2000, Apr 11
From: Fred Beck FredBeck

I'm trying to get a Tecra550CDT to recognize two ethernet adaptors in preparation of setting it up as a firewall.

I'm running RH 6.1 and have 2 Linksys 10/100 cards (Socket0-PCMPC100, Socket1-EC2T). Both cards show up in /etc/pcmcia/config, and my current copy of /etc/sysconfig/pcmcia reads: 

  PCMCIA=yes
  PCIC=i82365
  PCIC_OPTS="cs_irq=9 irq_list=10,11"
  CORE_OPTS=
  CARDMGR_OPTS="-f"

[I've tried many variations of the above...]

I've set up /etc/pcmcia/network to have two separate entries for : 

  case "$ADDRESS" in
  *,0,*,*)
     <SNIP>
  ;;
  *,1,*,*)
    <SNIP>
  ;;
esac

The basic problem is that I keep getting the resource conflict: "RequestIRQ: Resource in use"

cardmgr seems to detect removal and insertion of the cards just fine. If I remove card0 and start/stop pcmcia, card1 does get recognized and setup on IRQ-10. Basically, cardmgr seems to only want IRQ-10 for both cards.

I'd appreciate any help anyone has to offer. Thanx!

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Not enough free interrupts, apparently

Re: Sad: Tecra550CDT and 2 ethernets IRQ problem (Fred Beck)
Date: 2000, Apr 11
From: David Hinds <dhinds@pcmcia.sourceforge.org> 

You have an interrupt starvation problem.  The PCMCIA-HOWTO has some
information about this situation.  When the i82365 module loads, it
reports what interrupts appear to be available for PCMCIA devices.  It
must have decided that irq 11 is not usable: maybe it is committed for
PCI.

To say more, I'd want to see the PCIC probe messages from the i82365
driver.  You should probably bag the cs_irq setting and instead maybe
force polling for card insertions, with "poll_interval=100".  That may
free up another interrupt.

The latest PCMCIA release may also do a better job of configuring
interrupts, than the drivers included in RH6.1.

-- Dave
1. More: RE: Not enough free interrupts, apparently by Fred Beck, 2000, Apr 13
(_ More: More information by Fred Beck, 2000, Apr 13
Tecra550CDT and 2 ethernets IRQ problem

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