From owner-freebsd-current@freebsd.org Sun Apr 24 17:49:45 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 C1091B1B6EE; Sun, 24 Apr 2016 17:49:45 +0000 (UTC) (envelope-from fidaj@ukr.net) Received: from frv157.fwdcdn.com (frv157.fwdcdn.com [212.42.77.157]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 7F44918AB; Sun, 24 Apr 2016 17:49:45 +0000 (UTC) (envelope-from fidaj@ukr.net) 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=Bs3U2Y6W5u2sXIbjLcko7zYE7DsQ0WNAcXpkpOQh+sY=; b=iRPWARgwU1NwK8sojk18H7DVNs2xQh2K8TkreiJJeyqz4ZkuyXrZnHioi9Sl/8QD8C+43rPZORbiHM/YikbinPEOint2xB8LMmA/o+LIb25Yb7fMQvsD1zXGHrBPspeXlQek8jJluq++kesp/5hA0d2AghZqlxRIZokOkT0fAgI=; Received: from [37.229.193.176] (helo=nonamehost.local) by frv157.fwdcdn.com with esmtpsa ID 1auOA3-00018Z-GW ; Sun, 24 Apr 2016 20:49:35 +0300 Date: Sun, 24 Apr 2016 20:49:34 +0300 From: Ivan Klymenko To: Warner Losh Cc: FreeBSD Current , freebsd-virtualization@freebsd.org Subject: Re: Heads up Message-ID: <20160424204934.46eebae8@nonamehost.local> In-Reply-To: <20160415114443.660453cb@nonamehost.local> References: <20160415114443.660453cb@nonamehost.local> 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-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: Sun, 24 Apr 2016 17:49:45 -0000 On Fri, 15 Apr 2016 11:44:43 +0300 Ivan Klymenko wrote: > 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 This problem is not over. After the update on other hardware from r296979 to r298512 (!!! without option CAM_NETFLIX_IOSCHED !!!) due to errors in recording the virtual machine to a virtual disk I lost completely virtual machine with permanent damage to the integrity of the file system in the inside of the virtual machine. This is a serious bug! Who cares not to fall into the same situation - is testing yourself and needed more testers. Because there is a suspicion that the problem is also relevant for bhyve VM. With me on this no more neither the strength nor the desire nor time. Thanks.