From owner-freebsd-questions@FreeBSD.ORG  Fri May  1 21:41:01 2009
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 0FFEB106566B
	for <freebsd-questions@freebsd.org>;
	Fri,  1 May 2009 21:41:01 +0000 (UTC)
	(envelope-from cwhiteh@onetel.com)
Received: from woodbine.london.02.net (woodbine.london.02.net [87.194.255.145])
	by mx1.freebsd.org (Postfix) with ESMTP id A3EEA8FC22
	for <freebsd-questions@freebsd.org>;
	Fri,  1 May 2009 21:41:00 +0000 (UTC)
	(envelope-from cwhiteh@onetel.com)
Received: from [192.168.1.75] (93.97.24.219) by woodbine.london.02.net
	(8.5.016.1) id 49D39EA90170116E; Fri, 1 May 2009 22:40:59 +0100
Message-ID: <49FB6C6A.8020308@onetel.com>
Date: Fri, 01 May 2009 22:40:58 +0100
From: Chris Whitehouse <cwhiteh@onetel.com>
User-Agent: Thunderbird 2.0.0.21 (X11/20090321)
MIME-Version: 1.0
To: "Paul B. Mahol" <onemda@gmail.com>
References: <49F78DD0.70007@onetel.com>
	<3a142e750904290530p7189e3d2y40328186dd4141f7@mail.gmail.com>
In-Reply-To: <3a142e750904290530p7189e3d2y40328186dd4141f7@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: User Questions <freebsd-questions@freebsd.org>
Subject: Re: ndis0 interrrupt storm
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 01 May 2009 21:41:01 -0000

Paul B. Mahol wrote:
> 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).

This is a pcmcia card in a laptop so cbb is needed :( There is no 
reference to msi in the pcm man page so I guess it is not available for 
this system. (Paul I saw a post from you on multimedia about msi in hdac 
and sure enough there is a reference to msi in snd_hda(4) man page). Am
I looking in the right place?

The bios is minimal so can't turn off sound or one channel of cbb.

Chris

> 
>