From owner-freebsd-bugs@FreeBSD.ORG  Fri Jan 19 21:12:09 2007
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
X-Original-To: freebsd-bugs@hub.freebsd.org
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id E2C4B16A404;
	Fri, 19 Jan 2007 21:12:09 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org [69.147.83.40])
	by mx1.freebsd.org (Postfix) with ESMTP id BB15C13C45B;
	Fri, 19 Jan 2007 21:12:09 +0000 (UTC) (envelope-from kib@FreeBSD.org)
Received: from freefall.freebsd.org (kib@localhost [127.0.0.1])
	by freefall.freebsd.org (8.13.4/8.13.4) with ESMTP id l0JLC9Lk083291;
	Fri, 19 Jan 2007 21:12:09 GMT
	(envelope-from kib@freefall.freebsd.org)
Received: (from kib@localhost)
	by freefall.freebsd.org (8.13.4/8.13.4/Submit) id l0JLC8iU083287;
	Fri, 19 Jan 2007 21:12:08 GMT (envelope-from kib)
Date: Fri, 19 Jan 2007 21:12:08 GMT
From: Konstantin Belousov <kib@FreeBSD.org>
Message-Id: <200701192112.l0JLC8iU083287@freefall.freebsd.org>
To: andrew@dobrohot.org, kib@FreeBSD.org, freebsd-bugs@FreeBSD.org
Cc: 
Subject: Re: kern/108078: [hal]: Periodic crashes of system at working HAL
X-BeenThere: freebsd-bugs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Bug reports <freebsd-bugs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-bugs>
List-Post: <mailto:freebsd-bugs@freebsd.org>
List-Help: <mailto:freebsd-bugs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-bugs>,
	<mailto:freebsd-bugs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 19 Jan 2007 21:12:10 -0000

Synopsis: [hal]: Periodic crashes of system at working HAL

State-Changed-From-To: open->feedback
State-Changed-By: kib
State-Changed-When: Fri Jan 19 21:08:19 UTC 2007
State-Changed-Why: 
I examined similar (not to say the same) backtraces and I am sure that
the problem is caused by nvidia driver. Invalid reference counting for
cloned devices in dev_clone handler destroys devfs list of devices,
and consequent access to /dev mount point causes read from freed memory
and traversal of destroyed list.

Please, remove the nvidia driver from the system, and report whether the
panics disappear.

http://www.freebsd.org/cgi/query-pr.cgi?pr=108078