xl0: watchdog timeout

[Diego Schulz]

Hi all,

I'm having this annoying warning every now and then,

$ dmesg | grep ^xl
(snip) ...
xl0: watchdog timeout
xl0: link state changed to DOWN
xl0: link state changed to UP
(snip) ...


What pciconf says is:

$ pciconf -v -l
xl0 at pci0:2:5:0: class=0x020000 card=0x100010b7 chip=0x920010b7 rev=0x74 hdr=0x00
    vendor     = '3COM Corp, Networking Division'
    device     = '3C905 CX-TX-M Fast EtherLink for PC Management NIC'
    class      = network
    subclass   = ethernet
xl1 at pci0:2:6:0: class=0x020000 card=0x100010b7 chip=0x920010b7 rev=0x74 hdr=0x00
    vendor     = '3COM Corp, Networking Division'
    device     = '3C905 CX-TX-M Fast EtherLink for PC Management NIC'
    class      = network
    subclass   = ethernet

dmesg also shows

xl1: <3Com 3c905C-TX Fast Etherlink XL> port 0xd000-0xd07f mem
0xfea40000-0xfea4007f irq 21 at device 6.0 on pci2
xlphy1: <3c905C 10/100 internal PHY> PHY 24 on miibus1
xlphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto


I'm running FreeBSD 7.1-PRERELEASE #2: Mon Oct 20 11:46:22 PYST 2008.
My kernel configuration is in basically GENERIC, but I added the ALTQ thingy,
that enables queuing capability with PF.
Also, the "watchdog timeout" message first appeared running GENERIC,
right away after I ended installing 7.0.
I've updated kernel and world every 2-3 days since then, in the hope it will
get fixed in RELENG_7 at some point in time ;)

Hey.. its a 3Com! (cheap one, but 3Com at least).. should I replace
the NICs for another brand/model?

Any advice or suggestion will be greatly appreciated.

Thanks in advance!