From owner-freebsd-hackers@FreeBSD.ORG  Fri Sep 30 16:46:34 2005
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From: Sebastien <sebastien.bourdeauducq@gmail.com>
To: Andrey Simonenko <simon@comsys.ntu-kpi.kiev.ua>
Date: Fri, 30 Sep 2005 18:48:19 +0200
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Cc: freebsd-hackers@freebsd.org
Subject: Re: Filesystem access from a KLD causes "vrele: negative ref cnt"
	panic
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> It is hard to say something not seeing and understanding the
> complete source code.  

Well, it's a very simple module :
http://lekernel.lya-fr.com/firmwareagent_en.html

> But since fdinit() which is called from 
> fork1() and fdfree() which is called from exit1() get and release
> reference on vnodes fd_cdir and fd_rdir point to, you need to
> follow this semantics.

Ok, so it should be VREF'd twice - it works now :)

Thanks,
Sebastien