sk0: watchdog timeout

Wilko Bulte wb at
Fri May 5 20:38:38 UTC 2006

On Fri, May 05, 2006 at 08:26:54PM +0000, Bjoern A. Zeeb wrote..
> On Fri, 5 May 2006, Wilko Bulte wrote:
> >On Fri, May 05, 2006 at 01:03:55PM -0400, Miles Lubin wrote..
> >>My motherboard has a built-in ethernet port that is handled by the sk
> >>driver. I'm running FreeBSD 6.1-RC on amd64. When the network card is
> >>under high load, it often kills any current connections and leaves the
> >>message "sk0: watchdog timeout" in dmesg. I've seen previous posts on 
> >>this
> >>issue, but the problem doesn't seem to be resolved. This issue makes 
> >>these
> >>network cards unusable in production environments.
> >>
> >>Relevent dmesg output:
> >>skc0: <Marvell Gigabit Ethernet> port 0xa000-0xa0ff mem
> >>0xfbb00000-0xfbb03fff ir
> >>q 17 at device 10.0 on pci0
> >>skc0: Marvell Yukon Lite Gigabit Ethernet rev. (0x9)
> >>sk0: <Marvell Semiconductor, Inc. Yukon> on skc0
> >
> >I had a similar event last night, on a P4 on an Asus P4P800.  The current
> >driver is much less prone to this lockup problem than it used to be.  In 
> >my
> >case it does not have to be in a high-load situation, it appears to happen
> >rather randomly (and *very* infrequently)
> >
> >May
> >4 22:37:22 CEST 2006
> The updated driver has been in HEAD for some days and the problem
> should be fixed there thanks to Pyun. See last commits to src/sys/dev/sk/*

Once it gets MFC-ed to 6 I will give it another try.  

Wilko Bulte				wilko at

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