Date: Thu, 21 Mar 2002 17:03:21 +1200 From: Jonathan Chen <jonc@chen.org.nz> To: Joe & Fhe Barbish <barbish@a1poweruser.com> Cc: FBSDQ <questions@FreeBSD.ORG> Subject: Re: Where do I find isa_strayintr() to turn off stray irq7 message? Message-ID: <20020321170321.A68978@grimoire.chen.org.nz> In-Reply-To: <LPBBIGIAAKKEOEJOLEGOKEHCCLAA.barbish@a1poweruser.com>; from barbish@a1poweruser.com on Wed, Mar 20, 2002 at 09:26:43PM -0500 References: <LPBBIGIAAKKEOEJOLEGOKEHCCLAA.barbish@a1poweruser.com>
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On Wed, Mar 20, 2002 at 09:26:43PM -0500, Joe & Fhe Barbish wrote:
> 5.24. What does ``stray IRQ'' mean?
> Stray IRQs are indications of hardware IRQ glitches, mostly from hardware
> that removes its interrupt request in the middle of the interrupt request
> acknowledge cycle.
> One has three options for dealing with this:
> * Live with the warnings. All except the first 5 per irq are suppressed
> anyway.
> * Break the warnings by changing 5 to 0 in isa_strayintr() so that all the
> warnings are suppressed.
> * Break the warnings by installing parallel port hardware that uses irq 7
> and the PPP driver for it (this happens on most systems), and install an ide
> drive or other hardware that uses irq 15 and a suitable driver for it.
>
> Where do I find isa_strayintr() to turn off irq7 message?
It's in /usr/src/sys/i386/isa/intr_machdep.c. You can tweak it to not log
the message. Some C experience required. A kernel rebuild is also
required.
--
Jonathan Chen <jonc@chen.org.nz>
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