UFS/VFS lock order reversal on stock 8.0-200812-AMD64

Gavin Atkinson gavin at FreeBSD.org
Fri Jan 23 04:19:41 PST 2009

On Fri, 2009-01-23 at 12:07 +0000, Gavin Atkinson wrote:
> On Thu, 2009-01-22 at 21:33 -0600, Paul Tice wrote:
> > I'm new, so please advise me (gently?) about list protocol and such if needed.
> > 
> > Using stock 8.0-CURRENT-200812-amd64, I am getting the messages below.
> 8.0-CURRENT is essentially the bleeding-edge of FreeBSD, and is where
> development happens that has not necessarily proven itself as being
> stable.  As it is the development branch, it also has a lot of extra
> debugging enabled, which is what you are seeing with the "lock order
> reversals".
> If you are not running 8-CURRENT for a specific reason (e.g. because you
> are doing FreeBSD OS development work, or you are prepared to help debug
> issues as you encounter them, or similar), you probably shouldn't be
> running CURRENT.  Stick with 7.1.

I should have also included (in answer to your actual question):
Neither the lock order reversals or the corrupted messages on shutdown
are anything you need worry about.


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