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From: John Baldwin <jhb@freebsd.org>
To: Alfred Perlstein <alfred@freebsd.org>
Subject: Re: svn commit: r244105 - in head/sys: kern sys
Date: Wed, 12 Dec 2012 10:42:50 -0500
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On Monday, December 10, 2012 8:23:51 pm Alfred Perlstein wrote:
> Author: alfred
> Date: Tue Dec 11 01:23:50 2012
> New Revision: 244105
> URL: http://svnweb.freebsd.org/changeset/base/244105
> 
> Log:
>   Switch the hardwired WITNESS panics to kassert_panic.
>   
>   This is an ongoing effort to provide runtime debug information
>   useful in the field that does not panic existing installations.
>   
>   This gives us the flexibility needed when shipping images to a
>   potentially large audience with WITNESS enabled without worrying
>   about formerly non-fatal LORs hurting a release.
>   
>   Sponsored by: iXsystems

Witness doesn't panic on LORs.  These are all bigger violations for things 
like doing sx_sunlock() on a exclusively locked sx lock.  That is not safe and 
is merely going to result in data corruption and other unpleasantness.  This 
sounds like a very bad idea.  Did you talk about this anywhere (I have not 
caught up on various lists yet, so apologies if this has been discussed.)

-- 
John Baldwin