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Date:      Wed, 29 Apr 2009 14:30:48 +0200
From:      "Paul B. Mahol" <onemda@gmail.com>
To:        Chris Whitehouse <cwhiteh@onetel.com>
Cc:        User Questions <freebsd-questions@freebsd.org>
Subject:   Re: ndis0 interrrupt storm
Message-ID:  <3a142e750904290530p7189e3d2y40328186dd4141f7@mail.gmail.com>
In-Reply-To: <49F78DD0.70007@onetel.com>
References:  <49F78DD0.70007@onetel.com>

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On 4/29/09, Chris Whitehouse <cwhiteh@onetel.com> wrote:
> Hi all
>
> I'm trying to get a Linksys WPC54Gv5 wireless pccard working. It has a
> Marvell 8335 chip. I've created a module with ndisgen and I can see
> ndis0. When I up it with ifconfig I immediately get repeated messages:
>
> Apr 28 23:23:19 pcbsd kernel: interrupt storm detected on "irq11:";
> throttling interrupt source
>
> As soon as I down the interface the messages stop.
>
> I've also tried starting ndis0 with polling
>
> # ifconfig ndis0 inet 192.168.1.20 polling
>
> but still get the messages. I guess this driver doesn't support polling.
> Or I've got the syntax wrong.

That command is not currently efective at all for ndisX(I yet have to
see if it is possible).

> According to vmstat -i irq11 is used by cbb0 and pcm0. ndis0 is on irq9
>
> irq9: cbb1 ndis0++
>
> This is on PCBSD 7.1 which is FreeBSD 7.2-PRERELEASE
>
> Any way I can get this thing working?

Try yo disable cbbX if you dont use it or enable MSI for pcm0 (if possible).


-- 
Paul



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