From owner-freebsd-fs@FreeBSD.ORG Wed Feb 13 13:31:56 2008 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id ACEE116A468; Wed, 13 Feb 2008 13:31:56 +0000 (UTC) (envelope-from jdc@parodius.com) Received: from mx01.sc1.parodius.com (mx01.sc1.parodius.com [72.20.106.3]) by mx1.freebsd.org (Postfix) with ESMTP id A18BC13C46A; Wed, 13 Feb 2008 13:31:56 +0000 (UTC) (envelope-from jdc@parodius.com) Received: by mx01.sc1.parodius.com (Postfix, from userid 1000) id 623D81CC038; Wed, 13 Feb 2008 05:31:56 -0800 (PST) Date: Wed, 13 Feb 2008 05:31:56 -0800 From: Jeremy Chadwick To: Ivan Voras Message-ID: <20080213133156.GA5645@eos.sc1.parodius.com> References: <20080213113321.GA52329@eos.sc1.parodius.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.16 (2007-06-09) Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Subject: Re: ZFS lockup in "zfs" state X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Feb 2008 13:31:56 -0000 On Wed, Feb 13, 2008 at 12:53:31PM +0100, Ivan Voras wrote: > Jeremy Chadwick wrote: > > On Wed, Feb 13, 2008 at 11:43:42AM +0100, Ivan Voras wrote: > >> Hi, > >> > >> A machine just wedged its ZFS file systems (UFS file systems were still > >> running), all unresponsive processes were in "zfs" state. This is > >> 7.0-RC1 on i386 with 2 GB RAM. It has happened at least once before. > >> > >> I have a kernel core dump (dumped from kdb/ddb on hotkey), if anyone's > >> interested. > > > > Were you copying any data from a ZFS pool to a UFS filesystem, or > > ZFS-to-ZFS, at that time? > > I don't know - the machine is a server that's been doing it's job (web > server, mysql, java). Depending on when the problem started, there could > have been a rsync from ZFS to UFS for backup purposes. > > > Does your coredump's backtrace look at all > > similar to the below report? > > > > http://lists.freebsd.org/pipermail/freebsd-stable/2008-January/040047.html > > I vaguely remember there being something about sockbuf when I had the > online debugger running and java (tomcat) is definitely running on the > server. Can you advise me how to extract this kind of information from a > kernel core dump (kgdb doesn't have show alllocks, etc :) )? I personally don't know. kris@ should be able to help with this. Volunteering people for stuff again, heh. :-) -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |