kernel: rl0: watchdog timeout

P.U.Kruppa root at
Wed Nov 23 19:50:53 GMT 2005

On Wed, 23 Nov 2005, Luke Dean wrote:

> Since I upgraded to version 6, my server has frozen under heavy network 
> traffic three times.  It ran happily for months on various versions of 5. 
> Same hardware, same configuration.
> There was never anything in /var/log/messages until this last time.  This 
> time I found:
> kernel: rl0: watchdog timeout
> I don't know what it's trying to tell me, and I don't know if it's a cause or 
> an effect.
> This is 6.0-STABLE as of late Sunday night.  i386.  rl0 is my WAN-side 
> interface.  vr0 is my internal interface.  This machine runs DNS, email, web, 
> NFS host, and several other services.  It uses pf with altq.
I have seen this once about two years ago. It went away, after I 
changed the NIC (realtek aren't high quality anyway).



> I don't think the system is panicking.  It doesn't reboot.  It may be 
> freezing.  It becomes unresponsive on both network interfaces.  When the 
> incident occurs, there's always a lot of simple TCP/IP traffic that's just 
> passing through the box (not NFS, email, web, or anything the box provides on 
> its own) and my first response is to hit the reset button to get it going 
> again.
> What should I look for?
> The handbook says to check cables, and they seem fine.
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* Peter Ulrich Kruppa - Wuppertal - Germany *

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