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From: Sean Bruno <seanbru@yahoo-inc.com>
To: "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>
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Date: Sun, 27 May 2012 15:43:43 -0700
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Subject: [stable 9]Dell R620 Ethernet Ordering
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I'm trying to understand the newbus and acpi interactions on this Dell
R620 that result in the Broadcom adapter board being probed "backwards"
or just plain out of order in comparison to the connector layout and the
linux tg3 driver. 

We seem to be detecting PCI0:2:0 before PCI0:1:0.  This seems odd to me.
When I replace the broadcom daughter card with an intel daughter card,
this does not show up, so I assume either a malfunction of the Dell ACPI
tables or the bge(4) driver.

http://people.freebsd.org/~sbruno/dell_12g_pciconf.txt

http://people.freebsd.org/~sbruno/r620_acpidump.txt