From owner-freebsd-bugs@FreeBSD.ORG Sun Jan 18 17:19:29 2004 Return-Path: <owner-freebsd-bugs@FreeBSD.ORG> Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2D93416A4CE for <freebsd-bugs@FreeBSD.org>; Sun, 18 Jan 2004 17:19:29 -0800 (PST) Received: from mail.tradex.sk (tradex.sk [81.0.229.33]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6EFC543D1F for <freebsd-bugs@FreeBSD.org>; Sun, 18 Jan 2004 17:19:27 -0800 (PST) (envelope-from martin@tradex.sk) Received: from localhost (tradex.sk [81.0.229.33]) by mail.tradex.sk (Postfix) with ESMTP id 8BBD7AD2F for <freebsd-bugs@FreeBSD.org>; Mon, 19 Jan 2004 02:19:25 +0100 (CET) Received: from tradex.sk (unknown [217.23.250.82]) by mail.tradex.sk (Postfix) with ESMTP id 894B4AD2A for <freebsd-bugs@FreeBSD.org>; Mon, 19 Jan 2004 02:19:06 +0100 (CET) Message-ID: <400B3157.7080105@tradex.sk> Date: Mon, 19 Jan 2004 02:22:31 +0100 From: Martin Matuska <martin@tradex.sk> User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; cs-CZ; rv:1.6b) Gecko/20031205 Thunderbird/0.4 X-Accept-Language: cs, en-us, en MIME-Version: 1.0 To: freebsd-bugs@FreeBSD.org X-Enigmail-Version: 0.82.5.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: by amavisd-new at tradex.sk Subject: vnode-backed md hangs on coyping larger files X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 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, 19 Jan 2004 01:19:29 -0000 I am using FreeBSD-Current (post 5.2-RELEASE) and have created a vnode backed vn using these commands: mdconfig -a -t vnode -s 8G -f somebackingfile -u 0 (I tried 4G and 2G, too) bsdlabel -w md0 auto newfs md0c mount /dev/md0c /mnt Then I started copying files or doing a make installworld DESTDIR=/mnt from /usr/src and md hangs after some time copying. The md device and all processes accessing it cannot be accessed, only a hardware reset is possible to survive, reboot command doesn't work, too. I was able to reproduce this system on various system configurations (all i386, with up to 2GB memory with AMD K6-3, Athlon or Intel P4 processors), so it doesnt seem to be caused by my system configuration. I am using a clean FreeBSD install. It does not depend on mdconfig flags or if system is mounted asynchronously/synchronously, too, tried to turn off clustering, make mount synchronous, no help. This problem does not occur with FreeBSD 4 vn driver.