From owner-freebsd-bugs@FreeBSD.ORG Mon Jun 15 13:10:03 2009 Return-Path: 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 136B71065673 for ; Mon, 15 Jun 2009 13:10:03 +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 C727A8FC16 for ; Mon, 15 Jun 2009 13:10:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n5FDA2iO073155 for ; Mon, 15 Jun 2009 13:10:02 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n5FDA2NJ073150; Mon, 15 Jun 2009 13:10:02 GMT (envelope-from gnats) Resent-Date: Mon, 15 Jun 2009 13:10:02 GMT Resent-Message-Id: <200906151310.n5FDA2NJ073150@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, Martin Matuska Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 808D91065674 for ; Mon, 15 Jun 2009 13:05:13 +0000 (UTC) (envelope-from mm@mail.vx.sk) Received: from mail.vx.sk (core.vx.sk [188.40.32.143]) by mx1.freebsd.org (Postfix) with ESMTP id 429268FC15 for ; Mon, 15 Jun 2009 13:05:13 +0000 (UTC) (envelope-from mm@mail.vx.sk) Received: from localhost (localhost [127.0.0.1]) by mail.vx.sk (Postfix) with ESMTP id 63A4614F1A for ; Mon, 15 Jun 2009 15:05:12 +0200 (CEST) Received: from mail.vx.sk ([127.0.0.1]) by localhost (mail.vx.sk [127.0.0.1]) (amavisd-new, port 10024) with LMTP id NqE5T4rPNTSO for ; Mon, 15 Jun 2009 15:05:07 +0200 (CEST) Received: by mail.vx.sk (Postfix, from userid 1001) id 572A614F0E; Mon, 15 Jun 2009 15:05:07 +0200 (CEST) Message-Id: <20090615130507.572A614F0E@mail.vx.sk> Date: Mon, 15 Jun 2009 15:05:07 +0200 (CEST) From: Martin Matuska To: FreeBSD-gnats-submit@FreeBSD.org X-Send-Pr-Version: 3.113 Cc: Subject: kern/135594: [zfs] Single dataset unresponsive with Samba X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Martin Matuska List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 15 Jun 2009 13:10:03 -0000 >Number: 135594 >Category: kern >Synopsis: [zfs] Single dataset unresponsive with Samba >Confidential: no >Severity: serious >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Jun 15 13:10:02 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Martin Matuska >Release: FreeBSD 7.2-STABLE amd64 >Organization: >Environment: Release: 7.2-STABLE-amd64 ZFS: v13 Memory: 8GB Samba: 3.2.10, 3.2.11 vfs.zfs.prefetch_disable="1" >Description: I experience hangs of a single ZFS dataset when under low load with samba. Processes trying to operate on the dataset are stuck in ZFS state ("smbd", "ls", etc.), this applies to "zfs umount -f" as well. Other datasets operate without problems. zfs list, set, etc. work correctly with this dataset. A hard reset is required to have the system operating again. This error happened on two systems with different datasets so it is reproducible, I should try to define how to reproduce it. How can I help debugging this problem? >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted: