Public bug reported:
My onboard nVidia NIC is assigned a random MAC address every time I
boot. The detected MAC is invalid because it is being read backwards.
This may be related to Bug #175333 (and many other similar
suspend/resume bug reports with the same symptom), but is not a
duplicate because that bug is supposed fixed in recent kernels and only
applies to suspend/resume behavior. I am currently running Jaunty. The
problem has been apparent since around Gutsy.
Relevant excerpts from dmesg
[ 0.000000] Linux version 2.6.28-9-generic (bui...@palmer) (gcc version
4.3.3 (Ubuntu 4.3.3-5ubuntu2) ) #31-Ubuntu SMP Wed Mar 11 15:43:58 UTC 2009
(Ubuntu 2.6.28-9.31-generic)
[ 3.644504] forcedeth: Reverse Engineered nForce ethernet driver. Version
0.61.
[ 3.644844] ACPI: PCI Interrupt Link [APCH] enabled at IRQ 20
[ 3.644852] forcedeth 0000:00:07.0: PCI INT A -> Link[APCH] -> GSI 20
(level, low) -> IRQ 20
[ 3.644856] forcedeth 0000:00:07.0: setting latency timer to 64
[ 3.644899] forcedeth 0000:00:07.0: Invalid Mac address detected:
2f:d3:61:ea:0f:00
[ 3.644985] forcedeth 0000:00:07.0: Please complain to your hardware vendor.
Switching to a random MAC.
[ 4.165131] forcedeth 0000:00:07.0: ifname eth0, PHY OUI 0x732 @ 1, addr
00:00:6c:35:bc:d0
[ 4.165136] forcedeth 0000:00:07.0: highdma pwrctl mgmt timirq gbit lnktim
msi desc-v3
[ 63.674057] forcedeth 0000:00:07.0: irq 2300 for MSI/MSI-X
[ 63.674286] eth0: no link during initialization.
[ 63.674968] ADDRCONF(NETDEV_UP): eth0: link is not ready
and from lspci -vvvv
00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)
Subsystem: Giga-byte Technology Device e000
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort-
<MAbort- >SERR- <PERR- INTx-
Latency: 0 (250ns min, 5000ns max)
Interrupt: pin A routed to IRQ 2300
Region 0: Memory at f7004000 (32-bit, non-prefetchable) [size=4K]
Region 1: I/O ports at c800 [size=8]
Capabilities: <access denied>
Kernel driver in use: forcedeth
Kernel modules: forcedeth
** Affects: ubuntu
Importance: Undecided
Status: New
--
forcedeth random MAC for nvidia chipset on boot
https://bugs.launchpad.net/bugs/348818
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