From owner-freebsd-doc Mon Aug 14 1: 0: 7 2000 Delivered-To: freebsd-doc@freebsd.org Received: from freefall.freebsd.org (freefall.FreeBSD.ORG [204.216.27.21]) by hub.freebsd.org (Postfix) with ESMTP id 3332237B5B0 for ; Mon, 14 Aug 2000 01:00:03 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.9.3/8.9.2) id BAA18924; Mon, 14 Aug 2000 01:00:03 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Date: Mon, 14 Aug 2000 01:00:03 -0700 (PDT) Message-Id: <200008140800.BAA18924@freefall.freebsd.org> To: freebsd-doc@freebsd.org Cc: From: Johan Karlsson Subject: Re: kern/17774: stray irq7 Reply-To: Johan Karlsson Sender: owner-freebsd-doc@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org The following reply was made to PR kern/17774; it has been noted by GNATS. From: Johan Karlsson To: Bruce Evans Cc: freebsd-gnats-submit@FreeBSD.ORG Subject: Re: kern/17774: stray irq7 Date: Mon, 14 Aug 2000 09:58:19 +0200 At Sun, 13 Aug 2000 22:52:53 +1000, Bruce Evans wrote: > Frequently Wrong Answers. That is why I thought it was the correct answer :-) > > Should the print of this text be removed from kernel then? > = > Either that or turned into a KASSERT panic or something that annoys > developers enough to fix the problem. (The irq7 and irq15 handlers > need extra code which is hard to fit into the macros used to generate > the code. This may be easier when the code is rewritten for SMPng.) If you think this should be done please go ahead and change it. In the mean time I think a FAQ entry should exists. -doc people, please check grammar and such since I'm not nativ :-) I have tried to merge Bruce's answer and any error is = probably mine. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Q: What does 'stray irq' mean? A: 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 alternatives how to deal with this: 1) Live with the warnings. All except the first 5 per irq = are suppressed anyway. 2) Break the warnings by changing 5 to 0 in isa_strayintr() = so that all the warnings are suppressed. 3) 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. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Thanks Johan K To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message