Date: Tue, 9 Jan 1996 20:59:36 -0500 (EST) From: Peter Dufault <dufault@hda.com> To: chuck@fang.cs.sunyit.edu Cc: urcf@fang.cs.sunyit.edu, questions@freebsd.org, hackers@freebsd.org Subject: Re: A few questions Message-ID: <199601100159.UAA27646@hda.com> In-Reply-To: <199601092134.QAA20547@fang.cs.sunyit.edu> from "chuck@fang.cs.sunyit.edu" at Jan 9, 96 04:34:04 pm
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>
> On Jan 9, 1:35pm, "Rodney C. Forbes" wrote:
> } Subject: A few questions
> } 3. I recently installed a Nakamichi 7 disk CD-ROM changer. What is the current
> } status concerning reports of panics while using this drive. Are there
> } any patches I should be aware of?
>
> I too recently purchased one of these drives (I haven't recieved it
> yet though). I'm concerned about the possibility of panics and wonder how
> FreeBSD will handle multiple access attempts to different LUNs. Has any-
> one had any success/failure in these areas?
There was a bug in the multi CD code recently fixed in cd.c. It was
(from memory here...)
> if(cd->dkunit >= 0) {
instead of:
> if(cd->dkunit) {
since cd->dkunit is set to -1 when dk_ndrive > DK_NDRIVE.
With this fixed the code seemed to work well, accessing 7
disks continuously over a 12 hour period.
--
Peter Dufault Real Time Machine Control and Simulation
HD Associates, Inc. Voice: 508 433 6936
dufault@hda.com Fax: 508 433 5267
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