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Date: Thu, 20 Sep 2001 13:51:34 +0200
From: "Karel J. Bosschaart" <karelj@wop21.wop.wtb.tue.nl>
To: David Kelly <dkelly@grumpy.dyndns.org>
Cc: questions@FreeBSD.ORG
Subject: Re: first CD burner fails while starting second (cdrecord)
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References: <karelj@wop21.wop.wtb.tue.nl> <200109200227.f8K2RBG59500@grumpy.dyndns.org>
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In-Reply-To: <200109200227.f8K2RBG59500@grumpy.dyndns.org>; from dkelly@grumpy.dyndns.org on Wed, Sep 19, 2001 at 09:27:11PM -0500
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On Wed, Sep 19, 2001 at 09:27:11PM -0500, David Kelly wrote:
> "Karel J. Bosschaart" writes:
> > 
> > I have two SCSI CD burners, HP CD-Writer+ 9200 1.0e (dev 0,6,0) and
> > PLEXTOR CD-R   PX-W4220T 1.04 (dev 0,4,0), and cdrecord 1.9 on FreeBSD 4.4.
> > 
> > When I'm starting to burn a CD on the 0,6,0 device while the 0,4,0 burner
> > is already burning, the 0,4,0 fails with
> 
> Years ago when I last had an SGI Irix system, cdrecord locked out all
> other I/O and processes for about 10 seconds when it started burning a
> CD. Not the 10 second countdown, but after that. If another cdrecord was
> running on another device I'd bet that device would be starved during
> this period. And that could be what you are seeing.
>
Then I would expect that it also fails when I change the order (start
0,4,0 while 0,6,0 is burning) but that is not the case. Or maybe that
burner somehow can handle the lockout. I'll try swapping the SCSI id's
and see what happens.

Karel.

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