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Date:      Fri, 22 Oct 2004 16:23:23 -0400
From:      Garance A Drosihn <drosih@rpi.edu>
To:        Scott Long <scottl@freebsd.org>, Brooks Davis <brooks@one-eyed-alien.net>
Cc:        freebsd-current@freebsd.org
Subject:   Re: Annoying SCSI waiting...
Message-ID:  <p06110423bd9f1b6312ed@[128.113.24.47]>
In-Reply-To: <41796396.5070804@freebsd.org>
References:  <417960C2.8040007@freebsd.org> <20041022194008.GA23778@odin.ac.hmc.edu> <41796396.5070804@freebsd.org>

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At 1:46 PM -0600 10/22/04, Scott Long wrote:
>
>This is not just a problem with old disk drives, it's a problem
>with some cdrom and many tape drives.  Maybe it can be set to 15
>only if the sa, cd, and/or ch drivers are present.  That still
>doesn't solve the problem with GENERIC, and I would like to keep
>GENERIC as compatible as possible.

One data point:  I have dropped that value to 7 seconds (or less)
on every FreeBSD system I have ever built, for at least six or
seven years now.  That goes back to a 60-MHz pentium, iirc (it was
a mean machine back when it was released, with a price-tag to match.
That machine is still the most expensive PC I have ever bought!).

I don't know how low of a value would be safe, but I think we
could safely pick a value which is less than 15 seconds.

-- 
Garance Alistair Drosehn            =   gad@gilead.netel.rpi.edu
Senior Systems Programmer           or  gad@freebsd.org
Rensselaer Polytechnic Institute    or  drosih@rpi.edu



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