Date: Fri, 25 Jan 2002 11:47:27 -0600 From: Krzysztof Parzyszek <kparz@iastate.edu> To: freebsd-questions@freebsd.org Cc: Nils Holland <nils@tisys.org> Subject: Re: Stry IRQs Message-ID: <20020125114727.A22203@warsaw.scl.ameslab.gov> In-Reply-To: <20020125165420.A77931@tisys.org>; from nils@tisys.org on Fri, Jan 25, 2002 at 04:54:20PM %2B0100 References: <20020125165420.A77931@tisys.org>
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On Fri, Jan 25, 2002 at 04:54:20PM +0100, Nils Holland wrote:
>
> I can say that these messages do not have any impact on computer or printer
> performance, but I'm wondering why they are there on my DFI and Epox
> boards, but not on my Chaintech board, even though it's the same printer
> with the same cable and the same parallel port BIOS (and kernel) settings.
> Any clues?
I don't have a clue, but I have found the following comment in
/usr/src/sys/i386/isa/intr_machdep.c and maybe it will help:
/*
* Caught a stray interrupt, notify
*/
static void
isa_strayintr(vcookiep)
void *vcookiep;
{
[...]
/* for some reason, we get bursts of intr #7, even if not enabled! */
/*
* Well the reason you got bursts of intr #7 is because someone
* raised an interrupt line and dropped it before the 8259 could
* prioritize it. This is documented in the intel data book. This
* means you have BAD hardware! I have changed this so that only
* the first 5 get logged, then it quits logging them, and puts
* out a special message. rgrimes 3/25/1993
*/
[...]
--
<>> hektor@iname.com <Krzysztof Parzyszek> Visit http://google.com
<<> (E)-N-[(4-Hydroxy-3-methoxyphenyl)methyl]-8-methyl-6-nonenamide
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