From owner-freebsd-current@FreeBSD.ORG Thu Feb 18 17:50:33 2010 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 6B669106566C for ; Thu, 18 Feb 2010 17:50:33 +0000 (UTC) (envelope-from mattjreimer@gmail.com) Received: from mail-gx0-f219.google.com (mail-gx0-f219.google.com [209.85.217.219]) by mx1.freebsd.org (Postfix) with ESMTP id 202E18FC0A for ; Thu, 18 Feb 2010 17:50:32 +0000 (UTC) Received: by gxk19 with SMTP id 19so2395008gxk.3 for ; Thu, 18 Feb 2010 09:50:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=D7hp14VmHUquS4wtezMSO9JBhA14BcJ+TVwUu+RWsgA=; b=IPY2pBlI1QiOzpccaQi9ZSilsFBKH/K7I1SZP0O+wrM+M8bJv8GECAIATfEWtMuenG Z52RGRHJOEF7zHBa7Lf4EJbZ1epqAj2UeDLTOt5ihS5x7wdlBkS6tbg+5SK7QNUgY+oz T/nGJ8NJOz//vOVUZI195jdCUgszKTg6YBTWE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=v+FY3/GG2W6pq3HachK8O4NWjqLb1gh+V9MYImZA2UQLH/4fOD7GcIl9rtph3neMfy uBXcUv5cuEwui3uljGmCRkhM5PrjaAXMMyIEOW8gAzEaF7I0NzSOdA02P0/A22zaG9fx CssVlpXU8NwHQsBUG+I1A5ewUnBNSp8iXmIiQ= MIME-Version: 1.0 Received: by 10.150.128.42 with SMTP id a42mr9191821ybd.328.1266515432170; Thu, 18 Feb 2010 09:50:32 -0800 (PST) In-Reply-To: <64aa03031002180531n5e07e3bcj455ba09bdf5e293e@mail.gmail.com> References: <64aa03031002161803h667734cal4d668b9eb9c0a1a8@mail.gmail.com> <790a9fff1002161842g17de8ecfvf2cfa8c77f03c32@mail.gmail.com> <64aa03031002161849s7b66b9e3l727aafd2afd3d596@mail.gmail.com> <201002171840.41088.ken@mthelicon.com> <790a9fff1002171303u4b40a90cr626ef856efee473b@mail.gmail.com> <64aa03031002171416s128ff196y92a5be5a6abadeb@mail.gmail.com> <64aa03031002171949gdfbd99ci8eab7f29399cc011@mail.gmail.com> <64aa03031002180531n5e07e3bcj455ba09bdf5e293e@mail.gmail.com> Date: Thu, 18 Feb 2010 09:50:32 -0800 Message-ID: From: Matt Reimer To: Chris Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Scot Hetzel , Pegasus Mc Cleaft , freebsd-current@freebsd.org Subject: Re: Seeing the dreaded "ZFS: i/o error - all block copies unavailable" on 9.0-CURRENT 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: Thu, 18 Feb 2010 17:50:33 -0000 On Thu, Feb 18, 2010 at 5:31 AM, Chris wrote: > > Can you paste the exact error? Are you getting something like: > > error 1: lba 32 > > error 1: lba 1 > > When I've seen the above sequence, it was due to a stack overflow (IIRC), > > with the result that the loader would start a second time and barf out > these > > errors. > > The "large number" in the error might give us a clue as to what's going > on. > > If the number is really large, it might be an indication that your BIOS > > doesn't reliably read past a certain threshold. ZFS writes a sort of > label > > at the beginning and end of its drives; perhaps the loader is trying to > read > > the label at the end of the disk and is failing (I don't recall whether > it > > tries to read both labels). > > Matt > > Matt, > > Here's exactly what I'm seeing after POST: > > error 1 lba 179552888 > error 1 lba 59243926 > ZFS: i/o error - all block copies unavailable > Hmm, both those LBAs fit in 28 bits. With a modern BIOS I wouldn't expect problems with those LBAs. It may or may not be related, but I notice that while in this state my > hard drive activity light stays on. > I think you're probably right about this being a BIOS problem. Does the gptzfsboot 'status' command show the same output when you run it with and without the F12 workaround? Here's what I see from FreeBSD and from gptzfsboot: [root ~]# zpool status pool: glamdring state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM glamdring ONLINE 0 0 0 raidz2 ONLINE 0 0 0 label/glamdring-0 ONLINE 0 0 0 label/glamdring-1 ONLINE 0 0 0 label/glamdring-2 ONLINE 0 0 0 label/glamdring-3 ONLINE 0 0 0 label/glamdring-4 ONLINE 0 0 0 label/glamdring-5 ONLINE 0 0 0 errors: No known data errors ... /boot.config: -Dh Default: glamdring:/boot/zfsloader boot: status pool: glamdring config: NAME STATE glamdring ONLINE raidz2 ONLINE label/glamdring-0 ONLINE label/glamdring-1 ONLINE label/glamdring-2 ONLINE label/glamdring-3 ONLINE label/glamdring-4 ONLINE label/glamdring-5 ONLINE Matt