From owner-freebsd-current@freebsd.org  Fri Apr 15 19:37:27 2016
Return-Path: <owner-freebsd-current@freebsd.org>
Delivered-To: freebsd-current@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 9FF26AEE239
 for <freebsd-current@mailman.ysv.freebsd.org>;
 Fri, 15 Apr 2016 19:37:27 +0000 (UTC) (envelope-from avg@FreeBSD.org)
Received: from citapm.icyb.net.ua (citapm.icyb.net.ua [212.40.38.140])
 by mx1.freebsd.org (Postfix) with ESMTP id B198A1446
 for <freebsd-current@FreeBSD.org>; Fri, 15 Apr 2016 19:37:26 +0000 (UTC)
 (envelope-from avg@FreeBSD.org)
Received: from porto.starpoint.kiev.ua (porto-e.starpoint.kiev.ua
 [212.40.38.100])
 by citapm.icyb.net.ua (8.8.8p3/ICyb-2.3exp) with ESMTP id WAA10485;
 Fri, 15 Apr 2016 22:37:23 +0300 (EEST)
 (envelope-from avg@FreeBSD.org)
Received: from localhost ([127.0.0.1])
 by porto.starpoint.kiev.ua with esmtp (Exim 4.34 (FreeBSD))
 id 1ar9YR-000New-JQ; Fri, 15 Apr 2016 22:37:23 +0300
Subject: Re: Samsung SSD TRIM [Was: Heads up]
To: Steven Hartland <killing@multiplay.co.uk>, freebsd-current@FreeBSD.org
References: <CANCZdfpnYnVrvhNagYUT9RhAuC1AMCrxh=GCt8RKT0bqxuJybw@mail.gmail.com>
 <alpine.BSF.2.20.1604142154240.8359@wonkity.com>
 <CANCZdfqEWDLrHndKf8ZND1mM7spK9cq+nfnA79EVEaSj-MJfFA@mail.gmail.com>
 <57109CB7.3020204@FreeBSD.org> <20160415081130.GH2282@home.opsec.eu>
 <5710CE6F.6010408@multiplay.co.uk>
From: Andriy Gapon <avg@FreeBSD.org>
Message-ID: <571142BB.4050601@FreeBSD.org>
Date: Fri, 15 Apr 2016 22:36:27 +0300
User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101
 Thunderbird/38.7.1
MIME-Version: 1.0
In-Reply-To: <5710CE6F.6010408@multiplay.co.uk>
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.21
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current/>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Fri, 15 Apr 2016 19:37:27 -0000

On 15/04/2016 14:20, Steven Hartland wrote:
> Prior to Warners commit there was no NCQ TRIM support in FreeBSD, so while it
> was working with standard non-NCQ TRIM (and I can corroborate that as we use the
> 840's and 850's all over with ZFS with TRIM enabled) its possible that it could
> cause issues when NCQ TRIM comes into play.

Sorry, I didn't realize those were different commands.
Thank you for clarifying.

-- 
Andriy Gapon