From owner-freebsd-current@FreeBSD.ORG  Wed Aug  8 20:57:24 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 435C216A419;
	Wed,  8 Aug 2007 20:57:24 +0000 (UTC)
	(envelope-from kris@obsecurity.org)
Received: from elvis.mu.org (elvis.mu.org [192.203.228.196])
	by mx1.freebsd.org (Postfix) with ESMTP id 357EF13C45B;
	Wed,  8 Aug 2007 20:57:24 +0000 (UTC)
	(envelope-from kris@obsecurity.org)
Received: from rot26.obsecurity.org (elvis.mu.org [192.203.228.196])
	by elvis.mu.org (Postfix) with ESMTP id 12CCC1A4D7E;
	Wed,  8 Aug 2007 13:56:26 -0700 (PDT)
Received: by rot26.obsecurity.org (Postfix, from userid 1001)
	id 74D71C12F; Wed,  8 Aug 2007 16:57:23 -0400 (EDT)
Date: Wed, 8 Aug 2007 16:57:23 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Kirk Russell <kirk@ba23.org>
Message-ID: <20070808205723.GA76824@rot26.obsecurity.org>
References: <20070808195955.GA76077@rot26.obsecurity.org>
	<Pine.NEB.4.44.0708081607300.8307-100000@greyhawk>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <Pine.NEB.4.44.0708081607300.8307-100000@greyhawk>
User-Agent: Mutt/1.4.2.3i
Cc: davidxu@freebsd.org, current@freebsd.org,
	Kris Kennaway <kris@obsecurity.org>
Subject: Re: panic: lock "aiomtx" already initialized
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 08 Aug 2007 20:57:24 -0000

On Wed, Aug 08, 2007 at 04:10:41PM -0400, Kirk Russell wrote:
> On Wed, 8 Aug 2007, Kris Kennaway wrote:
> 
> > From stress2's random syscall test:
> >
> > db> wh
> > Tracing pid 45777 tid 100465 td 0xc61b7000
> > kdb_enter(c077f50d,2,c0782352,ed0fab84,2,...) at kdb_enter+0x33
> > panic(c0782352,c0788b88,c5e1107c,20000,0,...) at panic+0xed
> > lock_init(c5e1107c,c07c67c4,c0788b88,0,20000) at lock_init+0x8c
> > mtx_init(c5e1107c,c0788b88,0,0,79400d31,...) at mtx_init+0x9f
> > aio_init_aioinfo(c61c4ab0,c057d463,c07e6520,9579c960,31a964,...) at aio_init_aioinfo+0x4b
> > aio_aqueue(c61b7000,79400d31,0,2,1,...) at aio_aqueue+0x8d
> > oaio_read(c61b7000,ed0facf8,4,c078503a,c07c2250,...) at oaio_read+0x32
> > syscall(ed0fad38) at syscall+0x14f
> > Xint0x80_syscall() at Xint0x80_syscall+0x20
> > --- syscall (318, FreeBSD ELF32, oaio_read), eip = 0x280c0969, esp = 0xbfbfe5f0, ebp = 0xbfbfe638 ---
> > db> x/s 0xc0782352
> > 0xc0782352:     lock "%s" %p already initialized
> 
> Could this be a similar issue?  I noticed it with 7.0-CURRENT-200706.
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=114216

Maybe, hard to say though because your backtrace is completely bogus.
Probably because you're using aio as a module so you need to do some
more work to get kgdb to read symbols; see the developers handbook.

Kris