From owner-freebsd-current@freebsd.org Fri Apr 15 09:05:26 2016 Return-Path: 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 2A8D6AEDF88 for ; Fri, 15 Apr 2016 09:05:26 +0000 (UTC) (envelope-from fidaj@ukr.net) Received: from frv25.fwdcdn.com (frv25.fwdcdn.com [212.42.77.25]) by mx1.freebsd.org (Postfix) with ESMTP id E4BBA1358 for ; Fri, 15 Apr 2016 09:05:25 +0000 (UTC) (envelope-from fidaj@ukr.net) Received: from [10.10.14.26] (helo=frv157.fwdcdn.com) by frv25.fwdcdn.com QID:1aqzMy-00058k-Il/RC:1; Fri, 15 Apr 2016 11:44:52 +0300 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ukr.net; s=fsm; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To:From:Date; bh=+xEnI3XZldGf8ph23rMW5JER1xnPqBIBp04TFlYyz+4=; b=mwY9iUvbUCziAU8G23XXEFJlw7ndh29oJW/RZuSibJJxz+00hgi4BZlx18R6NzMm76stXqXalVeNYgIK7kCLQSmdewn9d/BfVvwOCJbaj2vMPP/6pGwh/faLKg70h0Ng6PZZv8k0G2P7RUXtvAmGGvmoQKK1UhSAyub3xGXP3FA=; Received: from [37.229.193.176] (helo=nonamehost.local) by frv157.fwdcdn.com with esmtpsa ID 1aqzMp-0000Jz-Oq ; Fri, 15 Apr 2016 11:44:43 +0300 Date: Fri, 15 Apr 2016 11:44:43 +0300 From: Ivan Klymenko To: Warner Losh Cc: FreeBSD Current Subject: Re: Heads up Message-ID: <20160415114443.660453cb@nonamehost.local> In-Reply-To: References: X-Mailer: Claws Mail 3.13.2 (GTK+ 2.24.29; amd64-portbld-freebsd11.0) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Authentication-Result: IP=37.229.193.176; mail.from=fidaj@ukr.net; dkim=pass; header.d=ukr.net X-Ukrnet-Yellow: 0 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.21 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: Fri, 15 Apr 2016 09:05:26 -0000 On Thu, 14 Apr 2016 16:42:33 -0600 Warner Losh wrote: > The CAM I/O scheduler has been committed to current. This work is > described in > https://people.freebsd.org/~imp/bsdcan2015/iosched-v3.pdf though the > default scheduler doesn't change the default (old) behavior. > > One possible issue, however, is that it also enables NCQ Trims on ada > SSDs. There are a few rogue drives that claim support for this > feature, but actually implement data corrupt instead of queued trims. > The list of known rogues is believed to be complete, but some caution > is in order. > > Warner Hi. Thanks for you work. But i have problem with VirtualBox if i use the kernel with option CAM_NETFLIX_IOSCHED http://imgur.com/JpcfW1h