From owner-freebsd-bugs@FreeBSD.ORG Tue May 4 22:50:28 2004 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 47BEA16A4CE for ; Tue, 4 May 2004 22:50:28 -0700 (PDT) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id D8A5E43D58 for ; Tue, 4 May 2004 22:50:27 -0700 (PDT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) i455oRNT095067 for ; Tue, 4 May 2004 22:50:27 -0700 (PDT) (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.12.11/8.12.11/Submit) id i455oR6G095066; Tue, 4 May 2004 22:50:27 -0700 (PDT) (envelope-from gnats) Date: Tue, 4 May 2004 22:50:27 -0700 (PDT) Message-Id: <200405050550.i455oR6G095066@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org From: dane foster Subject: Re: misc/66270: dump causes machine freeze X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: dane foster List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 May 2004 05:50:28 -0000 The following reply was made to PR misc/66270; it has been noted by GNATS. From: dane foster To: Kris Kennaway Cc: freebsd-gnats-submit@FreeBSD.org Subject: Re: misc/66270: dump causes machine freeze Date: Wed, 5 May 2004 17:41:36 +1200 Sorry, a bit more detail. First, Im using the snapshot feature of dump (dump L). Second, approx. 30 seconds after i start the dump, the entire machine freezes completely. No network, no keyboard. it requires a hard reset. This happens on two separate machines. Its a bit difficult to debug, as there's no error message before/after the machine freezes. Also, this is a production machine (mail server, and db host). Mucking about with it is sort of frowned upon. If there's any info i can provide, let me know and i'll see what i can do, crashing either host more than once or twice a week is bad though ;) /dane On May 5, 2004, at 5:04 PM, Kris Kennaway wrote: > Dane Foster wrote: > >>> Number: 66270 >>> Category: misc >>> Synopsis: dump causes machine freeze >>> Confidential: no >>> Severity: serious >>> Priority: medium >>> Responsible: freebsd-bugs >>> State: open >>> Quarter: Keywords: Date-Required: >>> Class: sw-bug >>> Submitter-Id: current-users >>> Arrival-Date: Tue May 04 18:30:20 PDT 2004 >>> Closed-Date: >>> Last-Modified: >>> Originator: Dane Foster >>> Release: 5.2.1 >>> Organization: >>> Environment: >> FreeBSD homer.connect.com.fj 5.2.1-RELEASE FreeBSD 5.2.1-RELEASE #0: >> Tue May 4 22:38:11 FJT 2004 >> root@homer.connect.com.fj:/usr/src/sys/i386/compile/IBM i386 >>> Description: > >> dump (called via amanda) with snapshots on a large, volatile >> filesystem causes the machine to freeze. no errors reported > > This PR contains even less information that your non-PR email, but > what you're describing sounds like intended behaviour. Specifically, > creating a snapshot causes all other filesystem access to pause until > the creation is complete, which can take a long time on large or > active filesystems. > > Can you please confirm that if you wait long enough the operation > completes? > > Kris >