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Hi list,
I have a *very* strange problem, unfortunately it's kind of a show stopper regarding the deployment of the machine. :(
I have two Intel Gigabit Ethernet NICs on board (Supermicro-based Server), quoting lspci (full output see at the end of the email):
0d:00.0 Ethernet controller: Intel Corporation 82573E Gigabit Ethernet Controller (Copper) (rev 03) 0f:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller
While the first device (seen as eth0) does *not* allow to set a different MTU (tried with 1576 and 1546, both values I could use; I am forced to use values >1500 here due to protocol stuff), the second works without a problem.
dmesg shows:
eth0: Unsupported MTU setting ADDRCONF(NETDEV_UP): eth0: link is not ready eth1: changing MTU from 1500 to 1576 ADDRCONF(NETDEV_UP): eth1: link is not ready 802.1Q VLAN Support v1.8 Ben Greear greearb@candelatech.com All bugs added by David S. Miller davem@redhat.com ADDRCONF(NETDEV_UP): eth0.543: link is not ready ADDRCONF(NETDEV_UP): eth0.820: link is not ready e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready ADDRCONF(NETDEV_CHANGE): eth0.543: link becomes ready ADDRCONF(NETDEV_CHANGE): eth0.820: link becomes ready e1000e: eth1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
The MTU is set as usual in the ifcfg-ethN files as 'MTU=1576', e.g.
I tried with kernel 2.6.18-194.8.1.el5.028stab070.2 (OpenVZ) as well as the vanilla CentOS kernels 2.6.18-194.8.1.el5 and 2.6.18-194.11.1.el5 -- same problem.
Has anybody an idea what goes wrong here?
Thanks,
Timo
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0d:00.0 Ethernet controller: Intel Corporation 82573E Gigabit Ethernet Controller (Copper) (rev 03) Subsystem: Super Micro Computer Inc Unknown device 108c Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 90 Region 0: Memory at d0200000 (32-bit, non-prefetchable) [size=128K] Region 2: I/O ports at 2000 [size=32] Capabilities: [c8] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=1 PME- Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+ Address: 00000000fee01000 Data: 405a Capabilities: [e0] Express Endpoint IRQ 0 Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <64us Device: AtnBtn- AtnInd- PwrInd- Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM unknown, Port 0 Link: Latency L0s <128ns, L1 <64us Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch- Link: Speed 2.5Gb/s, Width x1 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number xy-xx-xx-ff-ff-48-30-00
0f:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet Controller Subsystem: Super Micro Computer Inc Unknown device 109a Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 106 Region 0: Memory at d0300000 (32-bit, non-prefetchable) [size=128K] Region 2: I/O ports at 3000 [size=32] Capabilities: [c8] Power Management version 2 Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=1 PME- Capabilities: [d0] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable+ Address: 00000000fee01000 Data: 406a Capabilities: [e0] Express Endpoint IRQ 0 Device: Supported: MaxPayload 256 bytes, PhantFunc 0, ExtTag- Device: Latency L0s <512ns, L1 <64us Device: AtnBtn- AtnInd- PwrInd- Device: Errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ Device: RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ Device: MaxPayload 128 bytes, MaxReadReq 512 bytes Link: Supported Speed 2.5Gb/s, Width x1, ASPM unknown, Port 0 Link: Latency L0s <128ns, L1 <64us Link: ASPM Disabled RCB 64 bytes CommClk+ ExtSynch- Link: Speed 2.5Gb/s, Width x1 Capabilities: [100] Advanced Error Reporting Capabilities: [140] Device Serial Number xx-xx-xx-ff-ff-48-30-00