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From: John Baldwin <jhb@freebsd.org>
To: freebsd-fs@freebsd.org,
 Allen Landsidel <landsidel.allen@gmail.com>
Date: Mon, 19 Sep 2011 08:18:01 -0400
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	(bigwig.baldwin.cx); Mon, 19 Sep 2011 08:18:03 -0400 (EDT)
Cc: amistry@am-productions.biz
Subject: Re: kern/160790: [fusefs] [panic] VPUTX: negative ref count with
	FUSE
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On Sunday, September 18, 2011 7:50:13 am Allen Landsidel wrote:
> The following reply was made to PR kern/160790; it has been noted by GNATS.
> 
> From: Allen Landsidel <landsidel.allen@gmail.com>
> To: bug-followup@FreeBSD.org
> Cc:  
> Subject: Re: kern/160790: [fusefs] [panic] VPUTX: negative ref count with
>  FUSE
> Date: Sun, 18 Sep 2011 07:40:36 -0400
> 
>  The crash is repeatable though the exact steps are unknown.  Three 
>  identical crashes within 8-9 hours, running the same workload.

My first guess would be that VOP_LOOKUP() for fusefs is returning a vnode with 
an insufficient number of references.

-- 
John Baldwin