From owner-freebsd-fs@FreeBSD.ORG Sun Nov 27 04:58:49 2011 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 894AA1065670 for ; Sun, 27 Nov 2011 04:58:49 +0000 (UTC) (envelope-from jdc@koitsu.dyndns.org) Received: from qmta12.westchester.pa.mail.comcast.net (qmta12.westchester.pa.mail.comcast.net [76.96.59.227]) by mx1.freebsd.org (Postfix) with ESMTP id 49F9C8FC08 for ; Sun, 27 Nov 2011 04:58:49 +0000 (UTC) Received: from omta22.westchester.pa.mail.comcast.net ([76.96.62.73]) by qmta12.westchester.pa.mail.comcast.net with comcast id 24uY1i0041ap0As5C4ypA7; Sun, 27 Nov 2011 04:58:49 +0000 Received: from koitsu.dyndns.org ([67.180.84.87]) by omta22.westchester.pa.mail.comcast.net with comcast id 24yn1i00d1t3BNj3i4yovM; Sun, 27 Nov 2011 04:58:49 +0000 Received: by icarus.home.lan (Postfix, from userid 1000) id 6BC60102C19; Sat, 26 Nov 2011 20:58:46 -0800 (PST) Date: Sat, 26 Nov 2011 20:58:46 -0800 From: Jeremy Chadwick To: Mark Felder Message-ID: <20111127045846.GA54467@icarus.home.lan> References: <95d00c1b714837aa32e7da72bc4afd03@feld.me> <20111126104840.GA8794@garage.freebsd.pl> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Cc: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Subject: Re: zfs i/o hangs on 9-PRERELEASE 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: Sun, 27 Nov 2011 04:58:49 -0000 On Sat, Nov 26, 2011 at 04:47:35PM -0600, Mark Felder wrote: > It appears that I'm mistaken about those messages then . However this does both happen on my AMD x6 and Intel Atom machines with different hard drives, controllers, etc. I feel it would be unlikely to be hardware. > > Unfortunately the procstat command is probably of no use because I can't interact with the console or ssh for the periods of time when it is hanging (sometimes in excess of a minute). Zpool scrubs come up clean and I never see any errors reported. I've been running this hardware for 2 years and v28 for quite some time. It doesn't seem like it started happening until I upgraded to a build past RC1. I don't know where to find RC1 media and I don't know the svn revision of RC1 so I haven't tried. The kernel backtrace you provided indicates a problem in pf(4), not ZFS. What piece am I missing? -- | Jeremy Chadwick jdc at parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, US | | Making life hard for others since 1977. PGP 4BD6C0CB |