From owner-freebsd-fs@FreeBSD.ORG Mon Jun 11 08:30:11 2012 Return-Path: Delivered-To: freebsd-fs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0625B1065670 for ; Mon, 11 Jun 2012 08:30:10 +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 D7A5F8FC12 for ; Mon, 11 Jun 2012 08:30:10 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q5B8UA2F078650 for ; Mon, 11 Jun 2012 08:30:10 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q5B8UAdn078645; Mon, 11 Jun 2012 08:30:10 GMT (envelope-from gnats) Date: Mon, 11 Jun 2012 08:30:10 GMT Message-Id: <201206110830.q5B8UAdn078645@freefall.freebsd.org> To: freebsd-fs@FreeBSD.org From: Peter Maloney Cc: Subject: Re: kern/161968: [zfs] [hang] renaming snapshot with -r including a zvol snapshot causes total ZFS freeze/lockup X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Peter Maloney List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 11 Jun 2012 08:30:11 -0000 The following reply was made to PR kern/161968; it has been noted by GNATS. From: Peter Maloney To: bug-followup@FreeBSD.org, peter.maloney@brockmann-consult.de Cc: Subject: Re: kern/161968: [zfs] [hang] renaming snapshot with -r including a zvol snapshot causes total ZFS freeze/lockup Date: Mon, 11 Jun 2012 10:23:58 +0200 This is a multi-part message in MIME format. --------------060109020708020504050507 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I've tested this in 8.3-RELEASE, and 8.3-STABLE pulled last week. *Both hang*, even though 8.2-STABLE in Feb 2012 did not hang. First terminal: Snapshot Renaming from to 1 load: 0.00 cmd: zfs 57149 [tx->tx_sync_done_cv)] 104.03r 0.00u 0.00s 0% 1920k Second: # zfs list load: 0.00 cmd: zfs 58403 [spa_namespace_lock] 119.06r 0.00u 0.00s 0% 1796k --------------060109020708020504050507 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit I've tested this in 8.3-RELEASE, and 8.3-STABLE pulled last week. Both hang, even though 8.2-STABLE in Feb 2012 did not hang.

First terminal:

Snapshot
Renaming from to 1
load: 0.00  cmd: zfs 57149 [tx->tx_sync_done_cv)] 104.03r 0.00u 0.00s 0% 1920k


Second:
# zfs list
load: 0.00  cmd: zfs 58403 [spa_namespace_lock] 119.06r 0.00u 0.00s 0% 1796k

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