Date: Mon, 9 Oct 2000 19:53:42 +0200 From: Gerhard Sittig <Gerhard.Sittig@gmx.net> To: freebsd-stable@FreeBSD.ORG Subject: Re: the ``stray irq 7'' is back Message-ID: <20001009195342.U31338@speedy.gsinet> In-Reply-To: <Pine.BSF.4.21.0010082131030.79640-100000@resnet.uoregon.edu>; from dwhite@resnet.uoregon.edu on Sun, Oct 08, 2000 at 09:31:36PM -0700 References: <200010080018.e980IUY02824@thought.org> <Pine.BSF.4.21.0010082131030.79640-100000@resnet.uoregon.edu>
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On Sun, Oct 08, 2000 at 21:31 -0700, Doug White wrote:
>
> Gary, your motherboard is cursed. I have one too; live with it.
>
> Stray IRQ 7s are _normal_.
Jumping in late, but ...
I know "stray irqs" from when hardware is "disabled" or you have
hardware in the machine the OS doesn't support and thus doesn't
register drivers or resources for. That's when the events end up
in the "stray" (i.e. "unexpected since not caused by me")
handler. Sound cards were known to cause this some five to eight
years ago. Some irq7 got triggered "by chance" without the lpt
driver thinking it has done it or some such. And I've seem
machines with crackling sound in the speaker boxes whenever print
jobs via lpt were executed. It must have been some kind of cross
over noise, maybe not enough or defective separation of
electrical paths or something.
virtually yours 82D1 9B9C 01DC 4FB4 D7B4 61BE 3F49 4F77 72DE DA76
Gerhard Sittig true | mail -s "get gpg key" Gerhard.Sittig@gmx.net
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