From owner-freebsd-current@FreeBSD.ORG  Fri Sep 10 08:35:39 2004
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To: Willem Jan Withagen <wjw@withagen.nl>
From: Ian FREISLICH <if@hetzner.co.za>
In-Reply-To: Message from Willem Jan Withagen <wjw@withagen.nl> 
   of "Fri, 10 Sep 2004 08:37:52 +0200." <41414BC0.40009@withagen.nl> 
Date: Fri, 10 Sep 2004 10:33:46 +0200
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cc: "Boris B. Samorodov" <bsam@ipt.ru>
cc: FreeBSD Current <freebsd-current@freebsd.org>
cc: Martin <nakal@web.de>
Subject: Re: Interrupt storm detected on "irq7: lpt0" 
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Willem Jan Withagen wrote:
> I've uped  the limit for what the max of interrupts could be....
> In  /etc/sysctl.conf
> hw.intr_storm_threshold=20000
> 
> Bit I've seen my lpt intr go as high as 60.000

Why not force ECP?

/boot/device.hints: hint.ppc.0.flags="0x8"

ppc0: <Parallel port> at port 0x378-0x37f irq 7 flags 0x8 on isa0
ppc0: SMC-like chipset (ECP-only) in ECP mode
ppc0: FIFO with 16/16/16 bytes threshold
ppbus0: <Parallel port bus> on ppc0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port

Ian

--
Ian Freislich