Date: Mon, 27 Mar 2000 10:11:44 +0300 From: Ruslan Ermilov <ru@ucb.crimea.ua> To: Olivier Saut <Olivier.Saut@crans.ens-cachan.fr> Cc: questions@FreeBSD.org Subject: Re: stray irq 7 Message-ID: <20000327101144.B91280@relay.ucb.crimea.ua> In-Reply-To: <20000325150845.A2983@mychkine.crans.ens-cachan.fr>; from Olivier Saut on Sat, Mar 25, 2000 at 03:08:45PM %2B0100 References: <20000325150845.A2983@mychkine.crans.ens-cachan.fr>
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On Sat, Mar 25, 2000 at 03:08:45PM +0100, Olivier Saut wrote: > Hello, > > I am now running 4.0-STABLE for a week. > I now have periodically in my logs : > stray irq 7 > stray irq 7 > stray irq 7 > stray irq 7 > stray irq 7 > too many stray irq 7's; not logging any more > > Before I was running 3-STABLE for a year without any message of this > kind. > > The irq #7 doesn't seem to be used by my system. > > Looking in /usr/src/sys/i386/isa/intr_machdep.c : > * 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 > > Is this still correct? > See http://support.intel.com/support/controllers/peripheral/7507.htm > Should I care about it? Bad hardware? > > The source then mentions : > /* > * XXX TODO print a different message for #7 if it is > * for a glitch. Glitches can be distinguished from > * real #7's by testing that the in-service bit is _not_ > * set. The test must be done before sending an EOI so > * it can't be done if we are using AUTO_EOI_1. > */ > > but this is far too complicated for me :-) > > > I am running : > FreeBSD mychkine.crans.ens-cachan.fr 4.0-STABLE FreeBSD > 4.0-STABLE #23: Sun Mar 19 22:51:34 CET 2000 > root@mychkine.crans.ens-cachan.fr:/usr/src/sys/compile/mychkine i386 > > on a Dell Latitude CPi. > > Thanks, > > PS could you CC me on your answer, I am not subscribed to -questions. > > - Olivier > > Olivier.Saut@dptMaths.ENS-Cachan.Fr | ID 0x7673A2CE -- Ruslan Ermilov Sysadmin and DBA of the ru@ucb.crimea.ua United Commercial Bank, ru@FreeBSD.org FreeBSD committer, +380.652.247.647 Simferopol, Ukraine http://www.FreeBSD.org The Power To Serve http://www.oracle.com Enabling The Information Age To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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