From owner-freebsd-fs@freebsd.org Sat Sep 12 11:19:32 2015 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3F474A027F1 for ; Sat, 12 Sep 2015 11:19:32 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: from mail-qg0-f52.google.com (mail-qg0-f52.google.com [209.85.192.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id F35431102 for ; Sat, 12 Sep 2015 11:19:31 +0000 (UTC) (envelope-from nonesuch@longcount.org) Received: by qgev79 with SMTP id v79so82127098qge.0 for ; Sat, 12 Sep 2015 04:19:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:content-type:content-transfer-encoding :mime-version:subject:message-id:date:references:in-reply-to:to; bh=+z4MhNLJeDmrqDdY9VKzyoUfN0VC1x7uvMtiR3rY+gQ=; b=QNTtX+rqSfA/BCODAroJ0m0N1iOyEGNWPdcJUrBfLchDSbQ0mW6L6udJjWx9DCIhK8 x9xavhTEnom3GckG48SsKENXk5w7SI/JfBP8gGnYJKeaighleSFMrFG6sIqh5sUYb21a KkbkVwmhFJFqXC+Bi3rAk+ateb1Vm8lr4fEgR2siNq6CLg/onEaUnH2Kn18VcMIDTxOC 7YS5Vo9uCvWGHEziHyMCFlE3DXFwnn/NqnnB/BTUodKTcBcwye2S9hxFP9Q383TicC/a +kWlribNLWvYqd0uVKPm+or0wHlZFMMyLAMsq1IQhWgiKjl2KMLtaBl4XvTPOHxFrhw0 zkjA== X-Gm-Message-State: ALoCoQlqQCHyyeu2CIJT1L++6L6qzTZOxCGDuZG+6MlgAx5rScmteAUNzczb+RAjRvWKslh81o8/ X-Received: by 10.140.236.194 with SMTP id h185mr5863418qhc.45.1442056765398; Sat, 12 Sep 2015 04:19:25 -0700 (PDT) Received: from [192.168.1.113] (ool-182c6ffa.dyn.optonline.net. [24.44.111.250]) by smtp.gmail.com with ESMTPSA id 103sm1884323qkx.7.2015.09.12.04.19.24 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 12 Sep 2015 04:19:25 -0700 (PDT) From: Mark Saad Mime-Version: 1.0 (1.0) Subject: Re: L2ARC and pool corruption Message-Id: Date: Sat, 12 Sep 2015 07:19:24 -0400 References: <76AD038E-4D72-48BB-8A3B-BD9BD76F9350@longcount.org> In-Reply-To: <76AD038E-4D72-48BB-8A3B-BD9BD76F9350@longcount.org> To: "freebsd-fs@freebsd.org" X-Mailer: iPhone Mail (12H321) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Sep 2015 11:19:32 -0000 All I forgot to include my question . In any case Ryan and I were talking abou= t this issue at work and I was wondering if and how this issue would effect t= he FreeBSD implementation of zfs . I didn't see any commits that appear to a= ddress this . --- Mark Saad | nonesuch@longcount.org > On Sep 12, 2015, at 7:15 AM, Mark Saad wrote: >=20 >=20 >=20 > --- > Mark Saad | nonesuch@longcount.org >=20 > Begin forwarded message: >=20 >> From: Ryan Zezeski >> Subject: L2ARC and pool corruption >>=20 >> A bug was discovered in L2ARC that can cause pool metadata corruption and= ultimately prevents the pool from being imported. This bug was introduced b= ack in Dec 2014. A fix is currently under review. >>=20 >> I recommend that we disable L2ARC for any SmartOS platform images that in= clude this commit: >>=20 >> commit 89c86e32293a30cdd7af530c38b2073fee01411c >> Author: Chris Williamson >> Date: Mon Dec 29 19:12:23 2014 -0800 >>=20 >> 5408 managing ZFS cache devices requires lots of RAM >> Reviewed by: Christopher Siden >> Reviewed by: George Wilson >> Reviewed by: Matthew Ahrens >> Reviewed by: Don Brady >> Reviewed by: Josef 'Jeff' Sipek >> Approved by: Garrett D'Amore >>=20 >> If you are unsure if a given platform includes this commit then send me t= he version string and I'll find out. >>=20 >> Here is the announcement on the OmniOS discussion list with more informat= ion: >>=20 >> http://permalink.gmane.org/gmane.os.omnios.general/5113 >>=20 >> And the official bug report with root cause analysis: >>=20 >> https://www.illumos.org/issues/6214 >>=20 >> -Z