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Date:      24 Jul 2002 17:12:44 -0500
From:      Rob Hughes <rob@robhughes.com>
To:        Wilko Bulte <wkb@freebie.xs4all.nl>
Cc:        Freebsd-stable <stable@freebsd.org>
Subject:   Re: Device pcm causes hard lock
Message-ID:  <1027548764.1926.23.camel@kahuna-ws.robhughes.com>
In-Reply-To: <20020725000717.A67097@freebie.xs4all.nl>
References:  <1027547410.1926.15.camel@kahuna-ws.robhughes.com>  <20020725000717.A67097@freebie.xs4all.nl>

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On Wed, 2002-07-24 at 17:07, Wilko Bulte wrote:
> On Wed, Jul 24, 2002 at 04:50:10PM -0500, Rob Hughes wrote:
> > I decided I wanted sound on my Toshiba 5005, so I added device pcm to
> > the kernel config. Now, at boot, I receive the message
> >=20
> > pcm0: <Intel 82801BA (ICH2)> at device 31.5 on pci0
> > pcm0: unable to map IO port space
> > device_probe_and_attach: pcm0 returned 6
> >=20
> > Very quickly after that, I get a hard lock, no break to debugger,
> > nothing. Ideas?
>=20
> I had to put ENABLE_PCI_IOMODE (IIRC, forgot the exact option name,
> check for it in LINT) on my Compaq EVO N160 for pcm to work on
> the ICH chipset. Never saw a lockup though.
>=20

That option causes a lock up too. This is one of those legacy free
things with more than just a lazy bios, it requires the OS to assign
IRQs and port addresses via acpi. I thought the kernel would just ignore
it if it wasn't initialized, and acpi couldn't initialize it. Apparently
not though.

Rob

--=20
Remember: the only difference between
being the champ and the chump is u.

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