From owner-freebsd-bugs@FreeBSD.ORG  Mon Mar 22 18:50:03 2010
Return-Path: <owner-freebsd-bugs@FreeBSD.ORG>
Delivered-To: freebsd-bugs@hub.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 71797106566C
	for <freebsd-bugs@hub.freebsd.org>;
	Mon, 22 Mar 2010 18:50:03 +0000 (UTC)
	(envelope-from gnats@FreeBSD.org)
Received: from freefall.freebsd.org (freefall.freebsd.org
	[IPv6:2001:4f8:fff6::28])
	by mx1.freebsd.org (Postfix) with ESMTP id 340438FC17
	for <freebsd-bugs@hub.freebsd.org>;
	Mon, 22 Mar 2010 18:50:03 +0000 (UTC)
Received: from freefall.freebsd.org (localhost [127.0.0.1])
	by freefall.freebsd.org (8.14.4/8.14.4) with ESMTP id o2MIo2SX020640
	for <freebsd-bugs@freefall.freebsd.org>; Mon, 22 Mar 2010 18:50:02 GMT
	(envelope-from gnats@freefall.freebsd.org)
Received: (from gnats@localhost)
	by freefall.freebsd.org (8.14.4/8.14.4/Submit) id o2MIo2XC020639;
	Mon, 22 Mar 2010 18:50:02 GMT (envelope-from gnats)
Resent-Date: Mon, 22 Mar 2010 18:50:02 GMT
Resent-Message-Id: <201003221850.o2MIo2XC020639@freefall.freebsd.org>
Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer)
Resent-To: freebsd-bugs@FreeBSD.org
Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org,
	Bruce Cran <bruce@cran.org.uk>
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 207B5106566B
	for <freebsd-gnats-submit@FreeBSD.org>;
	Mon, 22 Mar 2010 18:41:15 +0000 (UTC)
	(envelope-from nobody@FreeBSD.org)
Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21])
	by mx1.freebsd.org (Postfix) with ESMTP id 0EEEF8FC0A
	for <freebsd-gnats-submit@FreeBSD.org>;
	Mon, 22 Mar 2010 18:41:15 +0000 (UTC)
Received: from www.freebsd.org (localhost [127.0.0.1])
	by www.freebsd.org (8.14.3/8.14.3) with ESMTP id o2MIfElC090245
	for <freebsd-gnats-submit@FreeBSD.org>; Mon, 22 Mar 2010 18:41:14 GMT
	(envelope-from nobody@www.freebsd.org)
Received: (from nobody@localhost)
	by www.freebsd.org (8.14.3/8.14.3/Submit) id o2MIfEO0090207;
	Mon, 22 Mar 2010 18:41:14 GMT (envelope-from nobody)
Message-Id: <201003221841.o2MIfEO0090207@www.freebsd.org>
Date: Mon, 22 Mar 2010 18:41:14 GMT
From: Bruce Cran <bruce@cran.org.uk>
To: freebsd-gnats-submit@FreeBSD.org
X-Send-Pr-Version: www-3.1
Cc: 
Subject: kern/144962: [geom] panic when accessing GPT disk with a large
	number of entries
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: Mon, 22 Mar 2010 18:50:03 -0000


>Number:         144962
>Category:       kern
>Synopsis:       [geom] panic when accessing GPT disk with a large number of entries
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Mar 22 18:50:02 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Bruce Cran
>Release:        9.0-CURRENT
>Organization:
>Environment:
FreeBSD core.draftnet 9.0-CURRENT FreeBSD 9.0-CURRENT #3 r205344M: Sat Mar 20 21:31:35 GMT 2010     brucec@core.draftnet:/usr/obj/usr/src/head/sys/CORE  amd64
>Description:
After creating a GPT with an excessively large number of entries, FreeBSD then is unable to access the disk without running out of kernel virtual memory.

For example, after running "gpart create -s gpt -n 1000000 da0" then accessing the disk, the system will the panic with "kmem_map too small".
>How-To-Repeat:
Run "gpart create -s gpt -n 1000000 da0" then reboot
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: