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Date:      Wed, 22 Sep 2004 18:32:23 -0600 (MDT)
From:      "M. Warner Losh" <imp@bsdimp.com>
To:        nate@root.org
Cc:        johan@freebsd.org
Subject:   Re: 5.3-BETA5 panics when inserting dc0 carbus card (only with ACPI enabled) enabled)
Message-ID:  <20040922.183223.23272975.imp@bsdimp.com>
In-Reply-To: <41520C80.3010007@root.org>
References:  <4151DA08.6010602@root.org> <20040922.172120.29652264.imp@bsdimp.com> <41520C80.3010007@root.org>

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In message: <41520C80.3010007@root.org>
            Nate Lawson <nate@root.org> writes:
: > Is there a pci bridge involved?  It is a well known problem for
: > cardbus systems that if there isn't, you get mappings like this.
: 
: I don't know, but it looks like cbb0 is directly under pci0.  Here's the 
: devinfo -r results from his working boot:
: 
:      pcib0
:        pci0
:          pcib1
:            pci1
:          cbb0
:              Interrupt request lines:
:                  0xb
:              I/O memory addresses:
:                  0x50000000-0x50000fff
:            cardbus0
:            pccard0
:          cbb1
:              I/O memory addresses:
:                  0x50100000-0x50100fff
:            cardbus1
:            pccard1
: 
: I can't see how ACPI sysresources affect this since ACPI doesn't claim 
: 0x1080-0x10ff IO which the card asks for.

That would be 'no, it doesn't go through a bridge'.  I'm not sure
either, but it has been observed before.

Warner



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