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Date:      Sun, 31 Jul 2005 00:36:52 +0200
From:      Oliver Lehmann <lehmann@ans-netz.de>
To:        current@freebsd.org
Cc:        imp@freebsd.org
Subject:   Re: mlx(4) fully and ep(4) partially broken on 6.0
Message-ID:  <20050731003652.12223405.lehmann@ans-netz.de>
In-Reply-To: <20050730014342.0843080d.lehmann@ans-netz.de>
References:  <20050730014342.0843080d.lehmann@ans-netz.de>

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Oliver Lehmann wrote:

> 1st problem with 6.0:
> ---------------------
> 
> The system kept rebooting automaticly after it detected ep0. It was
> saying sth. like "ep0: no irq?!". The funny thing is, one line above it
> wrote sth. like "ep0 <3COM....> irq 9 ....". for me that looks like ep0
> has of course an irq assigned.
> 
> I am happy that I have physical access to this system! Damn!
> 
> I changed the perfectly-on-5.4 working 3com card with an other I had
> on storage - panic is gone now.

Some things about this:

I can reproduce this on my testsystem when I put "device intpm" into my
kernel config.

intpm0 runs with irq 9:

intpm0 <Intel 82371AB Power management controller> port 0x5000-0x500f ir1 9 at device 7.3 on pci0

same as ep0 wants to run with:

ep0: <3Com 3C509-Combo Etherlink III> at port 0x300-0x30f irq 9 on isa0
ep0: No irq?!
panic: resource_list_release: resource entry is not busy
Uptime: 1s

As you can see, it looks like the card is not configured as PnP (because
that would add "(PnP)" to the description).

On my router, fxp3 has irq 9 - Maybe it is irq sharing related? But I
wonder why it works with 5.4 without problems...

-- 
 Oliver Lehmann
  http://www.pofo.de/
  http://wishlist.ans-netz.de/



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