From owner-freebsd-bugs  Wed Jun  5 16:50: 6 2002
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Date: Thu, 6 Jun 2002 09:50:03 +1000 (EST)
From: Bruce Evans <bde@zeta.org.au>
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Subject: Re: kern/38923: Incorrect device use count prevents door locking
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On Wed, 5 Jun 2002, Bruce Evans wrote:

>  This is due to count_dev() not actually working.  I have had the following

The precise failure mechanism is that.  The upper disk layer calls the
driver open with dev == the primary device for the device being opened
(e.g. afd0 for afd0s4), so checking count(dev) in the driver can only
work for the primary device.

Bruce


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