From owner-freebsd-questions@FreeBSD.ORG  Tue May 23 14:13:57 2006
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 6557316A4A3
	for <freebsd-questions@freebsd.org>;
	Tue, 23 May 2006 14:13:57 +0000 (UTC)
	(envelope-from chowse@charter.net)
Received: from mxsf03.cluster1.charter.net (mxsf03.cluster1.charter.net
	[209.225.28.203])
	by mx1.FreeBSD.org (Postfix) with ESMTP id D2FB743D48
	for <freebsd-questions@freebsd.org>;
	Tue, 23 May 2006 14:13:56 +0000 (GMT)
	(envelope-from chowse@charter.net)
Received: from mxip22a.cluster1.charter.net (mxip22a.cluster1.charter.net
	[209.225.28.152])
	by mxsf03.cluster1.charter.net (8.12.11/8.12.11) with ESMTP id
	k4NEDs4G023683
	for <freebsd-questions@freebsd.org>; Tue, 23 May 2006 10:13:55 -0400
Received: from 24-176-104-160.dhcp.jcsn.tn.charter.com (HELO [192.168.254.3])
	([24.176.104.160])
	by mxip22a.cluster1.charter.net with ESMTP; 23 May 2006 10:13:49 -0400
Mime-Version: 1.0 (Apple Message framework v750)
Content-Transfer-Encoding: 7bit
Message-Id: <302D38D7-E688-47B7-859F-5DDB56E2A2EB@charter.net>
Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
To: FreeBSD Questions <freebsd-questions@freebsd.org>
From: Charles Howse <chowse@charter.net>
Date: Tue, 23 May 2006 09:13:46 -0500
X-Mailer: Apple Mail (2.750)
Subject: Best Practices - interrupt 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: Tue, 23 May 2006 14:13:57 -0000

Hi,
FreeBSD 6.1-RELEASE, cups-1.1.23.0_1, HP 1100 LaserJet

I've found quite a bit of information about how to deal with:
"Interrupt storm detected in "irq7:"; throttling interrupt source"

Problem is, it's a little confusing.
 From what I've gathered, the options are:
Use the BIOS to set the printer port to ECP,
Use lptcontrol to set the port to polled mode,
Use device.hints to do both

IIRC, in the past, I have used lptcontrol to set polled mode, but  
that resulted in:
"too many stray irq7's, not logging any more"

Can anyone suggest a method to make both "interrupt storm" and "too  
many stray irq7's" go away?

--
Thanks,
Charles
http://bubbabbq.homeunix.net