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Date:      Fri, 10 Sep 2004 08:53:06 +0400
From:      "Boris B. Samorodov" <bsam@ipt.ru>
To:        Martin <nakal@web.de>
Cc:        FreeBSD Current <freebsd-current@freebsd.org>
Subject:   Re: Interrupt storm detected on "irq7: lpt0"
Message-ID:  <20040910045306.GA1037@ipt.ru>
In-Reply-To: <1094765463.754.1.camel@klotz.local>
References:  <1094765463.754.1.camel@klotz.local>

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Hi!

On Thu, Sep 09, 2004 at 11:32:02PM +0200, Martin wrote:
> 
> Hi,
> 
> I have this problem already for a longer time.
> 
> After I've sent a print-job to lpr, the system
> says:
> 
> Interrupt storm detected on "irq7: lpt0"; throttling interrupt source
> 
> The worst about it is that the printer is very slow.
> It needs an hour to print a page of paper.
> It prints one single line in usual speed and then stops
> for about a minute.
> 
> The hardware is OK. I've checked it.
> 
> I'm using
> 5.3-BETA3 FreeBSD 5.3-BETA3 #0: Wed Sep  8 18:33:17 CEST 2004
> ghostscript-afpl-8.14_6,1
> Epson Stylus COLOR

We had a similar problem with multiport network adapter.
Adding SMP capabilities to the kernel (but we have only
one processor) cured the problem.

OS: FreeBSD-5.3-BETA3.

> a piece of dmesg:
> ppc0 port 0x378-0x37f irq 7 on acpi0
> ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
> ppbus0: <Parallel port bus> on ppc0
> lpt0: <Printer> on ppbus0
> lpt0: Interrupt-driven port
> ppi0: <Parallel I/O> on ppbus0
> 
> 
> Is printing on lpt working at all on -CURRENT?
> 
> Martin
> 
> 
> _______________________________________________
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WBR
-- 
bsam



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