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From: David Miller <davem@davemloft.net>
Subject: Re: [PATCH] fix race in AF_UNIX
Date: Mon, 18 Jun 2007 02:59:45 -0700 (PDT)
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From: Miklos Szeredi <miklos@szeredi.hu>
Date: Mon, 18 Jun 2007 11:55:19 +0200

> It's doing trylocks and releasing all those locks within the same spin
> locked region, how the f**k can that deadlock?

The case I'm very concerned about is the interactions of your
new code with the unix_state_double_lock() stuff I added recently
to fix another bug.