From owner-freebsd-stable@FreeBSD.ORG Wed Jan 2 01:57:10 2013 Return-Path: Delivered-To: stable@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 803A574C for ; Wed, 2 Jan 2013 01:57:10 +0000 (UTC) (envelope-from hrs@FreeBSD.org) Received: from mail.allbsd.org (gatekeeper.allbsd.org [IPv6:2001:2f0:104:e001::32]) by mx1.freebsd.org (Postfix) with ESMTP id D79598FC17 for ; Wed, 2 Jan 2013 01:57:09 +0000 (UTC) Received: from alph.allbsd.org (p1137-ipbf1505funabasi.chiba.ocn.ne.jp [118.7.212.137]) (authenticated bits=128) by mail.allbsd.org (8.14.5/8.14.5) with ESMTP id r021ur8v023393 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Wed, 2 Jan 2013 10:57:03 +0900 (JST) (envelope-from hrs@FreeBSD.org) Received: from localhost (localhost [127.0.0.1]) (authenticated bits=0) by alph.allbsd.org (8.14.5/8.14.5) with ESMTP id r021up20031870 for ; Wed, 2 Jan 2013 10:56:53 +0900 (JST) (envelope-from hrs@FreeBSD.org) Date: Wed, 02 Jan 2013 10:53:04 +0900 (JST) Message-Id: <20130102.105304.1817355190360003433.hrs@allbsd.org> To: stable@FreeBSD.org Subject: NFS-exported ZFS instability From: Hiroki Sato X-PGPkey-fingerprint: BDB3 443F A5DD B3D0 A530 FFD7 4F2C D3D8 2793 CF2D X-Mailer: Mew version 6.5 on Emacs 23.4 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Multipart/Signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="--Security_Multipart(Wed_Jan__2_10_53_04_2013_899)--" Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.97.4 at gatekeeper.allbsd.org X-Virus-Status: Clean X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (mail.allbsd.org [133.31.130.32]); Wed, 02 Jan 2013 10:57:03 +0900 (JST) X-Spam-Status: No, score=-98.1 required=13.0 tests=CONTENT_TYPE_PRESENT, ONLY1HOPDIRECT,SAMEHELOBY2HOP,USER_IN_WHITELIST autolearn=no version=3.3.2 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on gatekeeper.allbsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Jan 2013 01:57:10 -0000 ----Security_Multipart(Wed_Jan__2_10_53_04_2013_899)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello, I have been in a trouble about my NFS server for a long time. The symptom is that it stops working in one or two weeks after a boot. I could not track down the cause yet, but it is reproducible and only occurred under a very high I/O load. It did not panic, just stopped working---while it responded to ping, userland programs seemed not working. I could break it into DDB and get a kernel dump. The following URLs are a log of ps, trace, and etc.: http://people.allbsd.org/~hrs/FreeBSD/pool.log.20130102 http://people.allbsd.org/~hrs/FreeBSD/pool.dmesg.20130102 Does anyone see how to debug this? I guess this is due to a deadlock somewhere. I have suffered from this problem for almost two years. The above log is from stable/9 as of Dec 19, but this have persisted since 8.X. -- Hiroki ----Security_Multipart(Wed_Jan__2_10_53_04_2013_899)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (FreeBSD) iEYEABECAAYFAlDjkwAACgkQTyzT2CeTzy19KACg3I02SLpt9/0k3oZf6CwwHZrC ghUAn0QDMU3L0vZ4QBbKU+vMa4QgV6qM =xeNb -----END PGP SIGNATURE----- ----Security_Multipart(Wed_Jan__2_10_53_04_2013_899)----