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Date:      Wed, 23 Aug 2000 15:47:45 -0400
From:      "Andresen,Jason R." <jandrese@mitre.org>
To:        kstewart@urx.com
Cc:        "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Strange conflict
Message-ID:  <39A42A61.407170FA@mitre.org>
References:  <39A42600.9A8A7A85@mitre.org> <39A42A04.84D91736@urx.com>

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Kent Stewart wrote:
> 
> "Andresen,Jason R." wrote:
> >
> > I have an unusual conflict problem.  I have an original model
> > SoundBlaster 16 ISA non-PNP (with jumpers and everything!) and a PCI
> > RealTek 10/100 ethernet card (Yes, I know it's crappy).  My problem is
> > the RealTek card seems to be conflicting with the SB16, which is
> > extremely odd because they aren't even on the same bus.  My symptoms:
> > Whenever I try to play a sound on the SB16, it simply plays the first
> > half second of the song over and over (BuhBuhBuhBuh....) for the
> > duration of the sound and then stops.  Removing the NIC restores
> > normal operation, but of course kills my network connection.
> 
> I would lay odds (but not bet any money :)) that the RealTek is
> grabbing the IRQ (5 most likely) that the SB wants. That was an old
> symptom. I don't know how you assign an IRQ to the RealTek. You can
> look at the dmesg and see what the RealTek is using. You could
> probably change the jumper on the SB if you can't fix it.

The strange thing is the Realtek reports:

> rl0: <RealTek 8139 10/100BaseTX> port 0xe800-0xe8ff mem
> 0xe6801000-0xe68010ff irq 11 at device 15.0 on pci0
> rl0: Ethernet address: 00:48:54:85:63:3a
> miibus0: <MII bus> on rl0
> rlphy0: <RealTek internal media interface> on miibus0
> rlphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto

Which makes it look like the card is taking irq 11, not 5.  Even more
interesting is that the Soundblaster is the only card that reports
taking irq 5.  Is it possible for the device to lie on the dmesg output?

-- 
   _  _    _  ___  ____  ___   ______________________________________
  / \/ \  | ||_ _||  _ \|___| | Jason Andresen -- jandrese@mitre.org
 / /\/\ \ | | | | | |/ /|_|_  | Views expressed may not reflect those 
/_/    \_\|_| |_| |_|\_\|___| | of the Mitre Corporation.


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