watchdog

[Pyun YongHyeon]

On Tue, Nov 09, 2010 at 06:09:13PM -0200, M?rcio Luciano Donada wrote:
> Em 9/11/2010 17:24, Pyun YongHyeon escreveu:
> > On Tue, Nov 09, 2010 at 09:19:01AM -0200, M?rcio Luciano Donada wrote:
> >> Hi list,
> >>
> >> I'm using FreeBSD (uname is below) and these days I'm caught in the log
> >> message below:
> >>
> >> vpn# uname -a
> >> FreeBSD vpn.auroraalimentos.com.br 7.3-STABLE FreeBSD 7.3-STABLE #0: Sat
> >> Jun 19 18:39:18 BRT 2010
> >> root at vpn.xxx.com.br:/usr/obj/usr/src/sys/VPN  i386
> >>
> >> Nov  8 11:53:55 vpn kernel: xl0: watchdog timeout (missed Tx interrupts)
> >> -- recovering
> >> Nov  8 12:01:21 vpn kernel: xl0: watchdog timeout (missed Tx interrupts)
> >> -- recovering
> >> Nov  8 12:21:55 vpn kernel: xl0: watchdog timeout (missed Tx interrupts)
> >> -- recovering
> >> Nov  8 16:11:34 vpn kernel: xl0: watchdog timeout (missed Tx interrupts)
> >> -- recovering
> >>
> >> it is possible that the network interface (xl0) is in trouble?
> >>
> > 
> > If my memory serve me right there were a couple of reports about
> > xl(4) watchdog timeout in past. The message was added by me to
> > track down possible cause of watchdog timeouts. The message means
> > driver lost Tx completion interrupts but driver noticed that the
> > queued frames were successfully transmitted such that it didn't
> > reset the controller and showed the informational message.
> > 
> > To further narrow down the issue, would you show me the following
> > information?
> >  o full 'dmesg' output
> >  o 'pciconf -lcbv' output
> >  o 'devinfo -rv | grep phy' output
> 
> 
> Hi,
> here's the information you requested:
> 

Thanks for the information.

If there is easy way to reproduce it would you let me know?
I've cleaned up some part of xl(4) which looks wrong to me but I
am not sure whether this can address the issue you reported.
Anyway, would you try attached patch?
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