From owner-freebsd-current@FreeBSD.ORG  Mon Oct 20 04:12:45 2003
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id 10DEB16A4B3
	for <freebsd-current@freebsd.org>;
	Mon, 20 Oct 2003 04:12:45 -0700 (PDT)
Received: from www.kukulies.org (www.kukulies.org [213.146.112.180])
	by mx1.FreeBSD.org (Postfix) with ESMTP id A986343FD7
	for <freebsd-current@freebsd.org>;
	Mon, 20 Oct 2003 04:12:43 -0700 (PDT)
	(envelope-from kuku@www.kukulies.org)
Received: from www.kukulies.org (localhost [127.0.0.1])
	by www.kukulies.org (8.12.10/8.12.6) with ESMTP id h9KBCesJ006426
	for <freebsd-current@freebsd.org>;
	Mon, 20 Oct 2003 13:12:41 +0200 (CEST)
	(envelope-from kuku@www.kukulies.org)
Received: (from kuku@localhost)
	by www.kukulies.org (8.12.10/8.12.6/Submit) id h9KBCeq4006425
	for freebsd-current@freebsd.org;
	Mon, 20 Oct 2003 13:12:40 +0200 (CEST)
Date: Mon, 20 Oct 2003 13:12:40 +0200 (CEST)
From: "C. Kukulies" <kuku@www.kukulies.org>
Message-Id: <200310201112.h9KBCeq4006425@www.kukulies.org>
To: freebsd-current@freebsd.org
Subject: panic with unloading nvidia.ko
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.1
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: Mon, 20 Oct 2003 11:12:45 -0000


I just got a kernel panic after making /usr/ports/x11/nvidia-driver.
I did a make, make reinstall. Then I did a kldunload nvidia.ko
and got:

nvidia0: detached
panic: malloc(9)/free(9) confusion.
Probably freeing with wrong type, but maybe not here.
Debugger("panic")
Stopped at Debugger+0x54:  xchgl   %ebx, in_Debugger.0

trace shows:

Debugger
panic
free
os_free
__nvsym00022
__nvsym00638
__nvsym00678
__nvsym00723
rm_shutdown_rm
nvidia_modevent
driver_module_handler
module_unload
linker_file_unload
kld_unload
syscall
Xint0x80


--
Chris Christoph P. U. Kukulies kuku_at_physik.rwth-aachen.de