kern/160790: [fusefs] [panic] VPUTX: negative ref count with FUSE

[Allen Landsidel]

The following reply was made to PR kern/160790; it has been noted by GNATS.

From: Allen Landsidel <landsidel.allen at gmail.com>
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/160790: [fusefs] [panic] VPUTX: negative ref count with
 FUSE
Date: Wed, 26 Jun 2013 16:08:39 -0400

 On RELENG_9 (9.1 stable), the crash is near instant now, and does not 
 take hours to manifest.  With a MooseFS FUSE filesystem mounted, simply 
 deleting a single top level directory results in an instant kernel panic.
 
 Compiled with a debug kernel so I could catch it without having to be 
 watching 24/7, I get a panic:
 
 Fatal trap 9: general protection fault while in kernel mode
 cpuid = 1; apic id = 01
 ...
 current process = 904 (rm)
 [ thread pid 904 tid 100074 ]
 Stopped at M_FUSEFH: movb 0xffffffffff8182a5,%al
 
 Screenshots of the panic and backtrace here:
 
 http://i.imgur.com/LHwpdas.png
 http://i.imgur.com/5fpNd7E.png
 http://i.imgur.com/8O2yfV7.png