Hi
Recently i start to use r8169 cards and faced some issues.
How to reproduce (kind of difficult, and i cannot that on my live server
anymore):
1)Badly crimped cable.
2)PCI-Express R8169 card
Kernel 2.6.23.1
05:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit
Ethernet (rev 10)
Subsystem: Realtek Semiconductor Co., Ltd. RTL-8169 Gigabit Ethernet
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (8000ns min, 16000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 21
Region 0: I/O ports at 1000 [size=256]
Region 1: Memory at 55001000 (32-bit, non-prefetchable) [size=256]
Expansion ROM at fffe0000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
PME(D0-,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
r8169 Gigabit Ethernet driver 2.2LK-NAPI loaded
eth1: RTL8169sb/8110sb at 0xf881c000, 00:19:e0:72:49:88, XID 10000000 IRQ 21
To reproduce issue i need to shake faulty cable. Card will report:
Nov 15 22:09:36 vzone r8169: eth1: link up
So it is going up without going down!
Normally it is like this:
Nov 1 00:50:33 vzone r8169: eth1: link down
Nov 1 00:50:35 vzone r8169: eth1: link up
After that i have.
Nov 15 22:11:37 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:11:49 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:12:01 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:12:13 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:12:25 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:12:37 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:12:49 vzone NETDEV WATCHDOG: eth1: transmit timed out
Nov 15 22:13:01 vzone NETDEV WATCHDOG: eth1: transmit timed out
And card completely non-functional (doesn't see traffic at all and doesn't
send anything). Probably some functions (like NAPI enabling) is has to be
disabled first, and if interface come twice up, without going down, card come
crazy.
--
Denys Fedoryshchenko
Technical Manager
Virtual ISP S.A.L.
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