This is on a Lenovo x200s, and I have this bug on both 2.6.29 and
2.6.28.8. I haven't tried any other kernels on this machine.
When I boot the system without an ethernet cable plugged in, ip link
does not show NO-CARRIER until I've plugged in and unplugged my
ethernet cable. Oddly enough, ethtool shows the correct status the
whole time. This confuses me and NetworkManager.
dmesg says:
[ 2.338427] 0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1)
xx:xx:xx:xx:xx:xx
[ 2.338489] 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[ 2.338565] 0000:00:19.0: eth0: MAC: 6, PHY: 8, PBA No: 1008ff-0ff
...
[ 35.806117] ADDRCONF(NETDEV_UP): eth0: link is not ready
ip link says (incorrectly, I believe):
2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state
UNKNOWN qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
ethtool eth0 says (at the end):
Link detected: no
Now I plug in an ethernet cable and unplug it again (with eth0 up and
NetworkManager stopped). dmesg says:
[ 763.091333] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 766.224944] 0000:00:19.0: eth0: Link is Up 1000 Mbps Full Duplex,
Flow Control: RX/TX
[ 766.226690] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 769.436269] 0000:00:19.0: eth0: Link is Down
[ 776.672111] eth0: no IPv6 routers present
ip link says:
2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast
state DOWN qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
Setting eth0 down and back up again does not re-break it.
lspci -vvvvvvvvvxxxxxxxxxxxx says:
00:19.0 Ethernet controller: Intel Corporation 82567LM Gigabit Network
Connection (rev 03)
Subsystem: Lenovo Device 20ee
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
Interrupt: pin A routed to IRQ 27
Region 0: Memory at f2600000 (32-bit, non-prefetchable) [size=128K]
Region 1: Memory at f2625000 (32-bit, non-prefetchable) [size=4K]
Region 2: I/O ports at 1840 [size=32]
Capabilities: <access denied>
Kernel driver in use: e1000e
00: 86 80 f5 10 07 05 10 00 03 00 00 02 00 00 00 00
10: 00 00 60 f2 00 50 62 f2 41 18 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 aa 17 ee 20
30: 00 00 00 00 c8 00 00 00 00 00 00 00 0b 01 00 00
--Andy
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