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Date:      Wed, 3 Mar 1999 04:07:14 -0500 (EST)
From:      "John S. Dyson" <dyson@iquest.net>
To:        green@unixhelp.org (Brian Feldman)
Cc:        alc@cs.rice.edu, current@freebsd.org
Subject:   Re: lockmgr panic with mmap()
Message-ID:  <199903030907.EAA00298@y.dyson.net>
In-Reply-To: <Pine.BSF.4.05.9903021829010.9317-100000@janus.syracuse.net> from Brian Feldman at "Mar 2, 99 06:29:31 pm"

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Brian Feldman said:
> > 
> > The lock manager isn't bright enough to detect that the process
> > already holds a read lock when it attempts to get the write lock.
> > Thus, you get the "thrd_sleep" instead of a panic.
> > 
> > In short, same bug, different symptoms.
> > 
> Ahh, makes sense.
> 
> Quick question: how in the heck did you learn this whole VM system?
> 
Alan has had a history helping on the VM code for quite a while, and
has contributed some really good ideas.  Frankly, he appears to
understand the code as well as anyone does.

-- 
John                  | Never try to teach a pig to sing,
dyson@iquest.net      | it makes one look stupid
jdyson@nc.com         | and it irritates the pig.


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