kern/139847: [geom_mbr] load/unload causes system to hang

[Jaakko Heinonen]

The following reply was made to PR kern/139847; it has been noted by GNATS.

From: Jaakko Heinonen <jh at FreeBSD.org>
To: Gavin Atkinson <gavin at FreeBSD.org>, yuri at tsoft.com
Cc: bug-followup at FreeBSD.org
Subject: Re: kern/139847: [geom_mbr] load/unload causes system to hang
Date: Sun, 1 Nov 2009 10:29:29 +0200

 Hi,
 
 On 2009-10-31, Gavin Atkinson wrote:
 >  "kldunload geom_mbr" hangs, with the backtrace below.  It hangs while 
 >  holding the GEOM topology lock and the kernel linker lock, which is 
 
 I have described this GEOM problem here:
 
 http://docs.freebsd.org/cgi/mid.cgi?20081216210311.GA5229
 
 (You are seeing the deadlock described in section 2.)
 
 There's also a link to a patch you could try.
 
 -- 
 Jaakko