82574L chip is foobar'ed to an unbelievable degree. Tried e'thing from 1.3.xx drivers up to 2.3 & 2.4.
. first issue the power savings & chip patch, did all that
. as next issue killed the msi-x & msi, chip is in legacy mode
. tried to switch off all the tx,rx & so on things
. ran out of ideas/internet searches
kernel: Live CD F18 or custom 2.6.39 with ported in drivers, behaves all the same
symptom: cannot dhcp an address on boot (waits for carrier, looses carrier after that, misses offers, whatever), barely stays up on pings, on a thing like ssh or any minimal ip traffic chip basically resets, comes back 10 secs later
with msi and msi-x same problems as other forum issue, basically logs 'hangs' and restarts chip.
Would not bother with that but must bring up 2500MUD2 board for customers in an embedded environment & that is a showstopper.