I have a PCI-E pro/1000 MT Quad Port adapter, which works quite well under 2.6.19.2 but fails to see link under 2.6.20-rc5. Earlier today I reported this to e1000-devel@xxxxxxxxxxxx, but thought I should get the word out in case someone else is testing this kernel on this nic chipset.<snip, worthless>
Due to changes between 2.6.19.2 and 2.6.20, Intel driver 7.3.20 will not compile for 2.6.20, nor will the 2.6.19.2 in-tree driver.
lspci -nn output (quad port):<snip, readability>
09:00.0 Ethernet controller [0200]: Intel Corporation 82571EB Gigabit Ethernet Controller [8086:10a4] (rev 06)
lspci -nn output (dual port):
07:00.0 Ethernet controller [0200]: Intel Corporation 82571EB Gigabit Ethernet Controller [8086:105e] (rev 06)
From what I've been able to gather, other Intel Pro/1000 chipsets work fine in 2.6.20-rc5. If the e1000 guys need any assistance testing, I'll be more than happy to volunteer myself as a guinea pig for patches.