*BSD News Article 64215


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From: krenaut@jax.jaxnet.com (Karl Renaut)
Newsgroups: comp.unix.bsd.bsdi.misc
Subject: Re: Unexpected Interupt irq6
Date: 15 Mar 1996 01:43:16 GMT
Organization: Southeast Network Services, Inc.
Lines: 42
Message-ID: <4iahvk$jro@jaxnet.jaxnet.com>
References: <4i8uah$p2o@news.bt.net> <1996Mar14.091517.1@spcvxb.spc.edu>
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One of the patches that BSDI has for 2.1 helps this problem.  We had the
same symptoms, nothing else was using irq 6, after the patch was put on 
it pretty much cleared up.

Terry Kennedy, Operations Mgr. (terry@spcvxb.spc.edu) wrote:
: In article <4i8uah$p2o@news.bt.net>, davidL@sisl.co.uk (Lyndon David) writes:
: > I have just loaded 2.1 onto a p100 with a Triton chipset. This
: > seems to work just fine other than every time I access the floppy
: > I get an error message to syslog saying it received an unexpected
: > interupt on irq6. I have changed the floppy, no difference. I changed
: > the bios from Award to AMI and back, no difference.

:   IRQ 6 is normally used by the floppy controller. You can see where it is
: used on your system by looking at the boot output (using dmesg, for exam-
: ple). If you get a line like:

: fdc0 at isa0 iobase 0x3f0 irq 6 drq 2: floppy controller

:   then you know your floppy controller is on IRQ 6. Either your system has
: something else that's trying to share IRQ 6, or your floppy controller has
: some subtle incompatibility with the standard for such things.

:   If you have a controller which also has a floppy port (for example, a
: SCSI controller), make sure that it's disabled - more than one floppy con-
: troller can cause definite problems. If that's not the case, but you do
: have another controller available, try disabling the motherboard controller
: using the BIOS setup and enabling the add-on controller's floppy port. You
: will need to move the floppy data cable over as well.

: 	Terry Kennedy		  Operations Manager, Academic Computing
: 	terry@spcvxa.spc.edu	  St. Peter's College, Jersey City, NJ USA
:         +1 201 915 9381 (voice)   +1 201 435-3662 (FAX)

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Southeast Network Services		Data:  904-292-4567
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