sis900 tx timeouts

sis900 tx timeouts

[Michael Di Domenico]

I have an Intel motherboard with an sis900 nic chipset down on the
board.  When i put the NIC under heavy send traffic i start to see
Transmit error's in dmesg and the nic stops sending data.  if i do an
ifdown eth0; ifup eth0 the nic starts responding again just fine and
will run for a while, but eventually the transmit errors return.  Can
anyone lend advice on how i might fix or help track down this error?

thanks

--- lspci -vvv
00:04.0 Ethernet controller: Silicon Integrated Systems [SiS] SiS900
PCI Fast Ethernet (rev 91)
	Subsystem: Intel Corporation Unknown device d61f
	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: 32 (13000ns min, 2750ns max)
	Interrupt: pin A routed to IRQ 225
	Region 0: I/O ports at 2000 [size=256]
	Region 1: Memory at 4a100000 (32-bit, non-prefetchable) [size=4K]
	Expansion ROM at 4a120000 [disabled] [size=128K]
	Capabilities: [40] Power Management version 2
		Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
		Status: D0 PME-Enable- DSel=0 DScale=0 PME-

--- dmesg
eth0: Transmit error, Tx status 060005ea.
eth0: Transmit error, Tx status 060005ea.

--- uname -a
Linux node5.home 2.6.18-92.1.17.el5_lustre.1.6.7.1smp #1 SMP Mon Apr
13 18:23:52 MDT 2009 i686 i686 i386 GNU/Linux