Messages in this thread | | | Date | Wed, 25 Jan 2012 01:21:01 -0800 | From | Andy Isaacson <> | Subject | e1000e: repeated eth0: Error reading PHY register |
| |
On my Thinkpad X201s running 3.3-rc1 I'm seeing bursts of these:
[ 1270.207370] e1000e 0000:00:19.0: eth0: Error reading PHY register [ 1271.003042] e1000e 0000:00:19.0: eth0: Error reading PHY register [ 1271.798896] e1000e 0000:00:19.0: eth0: Error reading PHY register [ 1272.595324] e1000e 0000:00:19.0: eth0: Error reading PHY register
I've been seeing these messages for a few kernel versions, but unfortunately due to a hardware failure I don't have kernels further back than 3.0. I'm pretty sure this didn't happen on 2.6.38.
There are nearly always exactly 12 messages (I have one log sequence where there are only 5, out of 110 occurrences), and they come every 300 seconds during some period, then they go away for a long time, then come back with no clear cause.
% dmesg | grep PHY | uniq -w4 -c 25 [ 1.253783] e1000e 0000:00:19.0: eth0: MAC: 9, PHY: 10, PBA No: A002FF-0FF 12 [ 370.314165] e1000e 0000:00:19.0: eth0: Error reading PHY register 12 [ 670.201544] e1000e 0000:00:19.0: eth0: Error reading PHY register 12 [ 970.045374] e1000e 0000:00:19.0: eth0: Error reading PHY register 12 [ 1270.207370] e1000e 0000:00:19.0: eth0: Error reading PHY register 12 [ 1570.031407] e1000e 0000:00:19.0: eth0: Error reading PHY register
(the clock is currently at 3636.)
The machine is on and off of AC power, and suspended with "sudo pm-suspend" then resumed, on a regular basis; there doesn't seem to be any clear correlation.
There's nothing plugged into the ethernet jack when this happens. (I don't use wired ethernet often enough to be sure if it happens when the wire is connected; there doesn't seem to be any impact on functionality on the rare occasion I do use it.)
% sudo ethtool eth0 Settings for eth0: Supported ports: [ TP ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: No Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Speed: Unknown! Duplex: Unknown! (255) Port: Twisted Pair PHYAD: 2 Transceiver: internal Auto-negotiation: on MDI-X: Unknown Supports Wake-on: pumbg Wake-on: d Current message level: 0x00000001 (1) drv Link detected: no
% sudo lspci -vvvs 0:19 00:19.0 Ethernet controller: Intel Corporation 82577LM Gigabit Network Connection (rev 06) Subsystem: Lenovo Device 2153 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 40 Region 0: Memory at f2500000 (32-bit, non-prefetchable) [size=128K] Region 1: Memory at f2525000 (32-bit, non-prefetchable) [size=4K] Region 2: I/O ports at 1820 [size=32] Capabilities: [c8] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME- Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Address: 00000000fee0f00c Data: 4149 Capabilities: [e0] PCI Advanced Features AFCap: TP+ FLR+ AFCtrl: FLR- AFStatus: TP- Kernel driver in use: e1000e
Full dmesg at http://web.hexapodia.org/~adi/snow/dmesg-3.3.0-rc1
Thanks, -andy
| |