From owner-freebsd-firewire@FreeBSD.ORG  Mon Feb  9 07:19:22 2004
Return-Path: <owner-freebsd-firewire@FreeBSD.ORG>
Delivered-To: freebsd-firewire@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id AE65F16A4CE
	for <firewire@freebsd.org>; Mon,  9 Feb 2004 07:19:22 -0800 (PST)
Received: from tora.nunu.org (YahooBB219003182070.bbtec.net [219.3.182.70])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 8BB6943D1D
	for <firewire@freebsd.org>; Mon,  9 Feb 2004 07:19:22 -0800 (PST)
	(envelope-from simokawa@sat.t.u-tokyo.ac.jp)
Received: from tora.nunu.org (unknown [192.168.1.2])
	by tora.nunu.org (Postfix) with ESMTP
	id B0D764B231; Tue, 10 Feb 2004 00:19:21 +0900 (JST)
Date: Tue, 10 Feb 2004 00:19:21 +0900
Message-ID: <87ekt4gu12.wl@tora.nunu.org>
From: Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To: "Petr Holub" <hopet@ics.muni.cz>
In-Reply-To: <03ce01c3ee83$1fbea4a0$2603fb93@kloboucek>
References: <03ce01c3ee83$1fbea4a0$2603fb93@kloboucek>
User-Agent: Wanderlust/2.10.1 (Watching The Wheels) SEMI/1.14.5 (Awara-Onsen)
	FLIM/1.14.5 (Demachiyanagi) APEL/10.6 MULE XEmacs/21.4 (patch 14) (Reasonable
	Discussion) (i386--freebsd)
MIME-Version: 1.0 (generated by SEMI 1.14.5 - "Awara-Onsen")
Content-Type: text/plain; charset=US-ASCII
cc: firewire@freebsd.org
Subject: Re: too many interupts/sec
X-BeenThere: freebsd-firewire@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
List-Id: Firewire support in FreeBSD <freebsd-firewire.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-firewire>,
	<mailto:freebsd-firewire-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-firewire>
List-Post: <mailto:freebsd-firewire@freebsd.org>
List-Help: <mailto:freebsd-firewire-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-firewire>,
	<mailto:freebsd-firewire-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 09 Feb 2004 15:19:22 -0000

At Sun, 8 Feb 2004 21:35:43 +0100,
Petr Holub wrote:
> 
> Hi,
> 
> I've found strange problem after upgrading from 5.1-RELEASE to 5.2-RELEASE
> on my DELL Precision 530. When X server goes up, fwohci device
> starts to eat enormous number of interupts per second (as
> shown by 'systat -vmstat 1') rendering system terribly slow.
> 
> BTW: 5.1-RELEASE had also problems on this maschine as a camera
> connected via firewire was able to crash the machine when the
> camera was turned on. This seems it is OK now and I'm able to
> attach the camera on the fly and grab video using fwcontrol
> without any problem. Except for the tremendous number of interrupts
> per second slowing down whole machine when X is running.
> 
> Any ideas?

Doesn't your fwohci share the irq with other devices?
Could you show me the output of 'devinfo -u'?

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: http://www.sat.t.u-tokyo.ac.jp/~simokawa/pgp.html