[vortex] Problems with 3c59x

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Hi,

>From times to times my 2 3c59x NICs giving me in kernel logs these 
messages:

Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.
Dec  3 18:10:41 lapd eth0: Tx Ring full, refusing to send buffer.

At that time I tried to repair the problem. I'll bring down the 
interfaces, deleting modules (3c59x and pci-scan), waiting for some time 
and starting the network ... i'm using kernel 2.4.20 and netdrivers from 
scyld.com.

Some infos about the "broken" card:

eth0      Link encap:Ethernet  HWaddr 00:50:DA:8A:1A:8B
          inet addr:192.168.36.1  Bcast:192.168.38.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:151 errors:0 dropped:0 overruns:382 frame:0
          TX packets:40 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100
          RX bytes:15622 (15.2 Kb)  TX bytes:4210 (4.1 Kb)
          Interrupt:10 Base address:0xe800

00:10.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 74)
        Subsystem: 3Com Corporation 3C905C-TX Fast Etherlink for PC Management NIC
        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 (2500ns min, 2500ns max), cache line size 08
        Interrupt: pin A routed to IRQ 10
        Region 0: I/O ports at e800 [size=128]
        Region 1: Memory at f6203000 (32-bit, non-prefetchable) [size=128]
        Expansion ROM at <unassigned> [disabled] [size=128K]
        Capabilities: [dc] Power Management version 2
                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=2 PME-


Thanks in advance,
Cosmin