From owner-freebsd-current@FreeBSD.ORG Sat Nov 26 22:47:46 2011 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 83CB81065670; Sat, 26 Nov 2011 22:47:46 +0000 (UTC) (envelope-from feld@feld.me) Received: from mwi1.coffeenet.org (unknown [IPv6:2607:f4e0:100:300::2]) by mx1.freebsd.org (Postfix) with ESMTP id 390EA8FC08; Sat, 26 Nov 2011 22:47:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=feld.me; s=blargle; h=Message-Id:To:Date:From:Subject:Content-Transfer-Encoding:Content-Type:Mime-Version:In-Reply-To:References; bh=8Um6e29uqcjnkeX1jUGG+zFHrT0p+GOGZwi/KdzYF20=; b=Im+pekVUM9yM7Gpr5eUrRrFARwZ+C7bXl0BT4GSmmy0gtA3yb09UGlOPQ+GuaY72u5f82j1lsEdIFJQoyBWpa5yNVGOfYhzvt9rO+77Z8tN0vN88lLoznw06dxJAYJqg; Received: from localhost ([127.0.0.1] helo=mwi1.coffeenet.org) by mwi1.coffeenet.org with esmtp (Exim 4.77 (FreeBSD)) (envelope-from ) id 1RUR28-000KyD-F6; Sat, 26 Nov 2011 16:47:45 -0600 Received: from feld@feld.me by mwi1.coffeenet.org (Archiveopteryx 3.1.4) with esmtpsa id 1322347658-1863-1862/5/3; Sat, 26 Nov 2011 22:47:38 +0000 References: <95d00c1b714837aa32e7da72bc4afd03@feld.me> <20111126104840.GA8794@garage.freebsd.pl> User-Agent: K-9 Mail for Android In-Reply-To: <20111126104840.GA8794@garage.freebsd.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Mark Felder Date: Sat, 26 Nov 2011 16:47:35 -0600 To: freebsd-fs@freebsd.org, freebsd-current@freebsd.org Message-Id: X-SA-Score: -1.0 Cc: Subject: Re: zfs i/o hangs on 9-PRERELEASE X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 26 Nov 2011 22:47:46 -0000 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.=20 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. Regards, Mark