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Date:      Tue, 28 Mar 2006 07:47:54 -0300
From:      JoaoBR <joao@matik.com.br>
To:        Andrew Reilly <andrew-freebsd@areilly.bpc-users.org>
Cc:        freebsd-stable@freebsd.org, shih@math.jussieu.fr, Marian Hettwer <MH@kernel32.de>
Subject:   Re: watchdog network card
Message-ID:  <200603280747.55047.joao@matik.com.br>
In-Reply-To: <20060328104007.GD87799@gurney.reilly.home>
References:  <20060327093011.GA21070@math.jussieu.fr> <4427E3B1.3020704@kernel32.de> <20060328104007.GD87799@gurney.reilly.home>

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On Tuesday 28 March 2006 07:40, Andrew Reilly wrote:

>
> That page points out that you need to re-compile your kernel
> with options DEVICE_POLLING, the OP should make sure that he
> does that, too.
>
> > > I don't understand : You think is better to put my card in polling mo=
de
> > > or not ?
> >
> > you can give it a try
> > ifconfig $interface polling
> > or
> > ifconfig $interface -polling
> > to disable polling...
>
> After the last rebuild on my amd64-x2 box, both the nve ethernet
> on the motherboard and the dc ethernet that I had been using to
> work around other problems in the nve driver stopped working in
> this way.  DEVICE_POLLING and ifconfig...polling has got me
> going again.  I thoroughly recommend it.
>

nve does not run polling mode but dc does

I guess you have an IRQ conflict, nve and dc on the same hw interrupt,  and=
=20
that setting dc in polling mode worked around this problem then

you could check vmstat -i with and without polling enabled to see it

Jo=E3o







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