From owner-freebsd-current@freebsd.org Fri Apr 15 13:29:24 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 B6C95AECF69 for ; Fri, 15 Apr 2016 13:29:24 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-ig0-x243.google.com (mail-ig0-x243.google.com [IPv6:2607:f8b0:4001:c05::243]) (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 7EBBA1885 for ; Fri, 15 Apr 2016 13:29:24 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-ig0-x243.google.com with SMTP id qu10so2969090igc.1 for ; Fri, 15 Apr 2016 06:29:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc; bh=TlrxGUXAu4CulKSkD7Mb/Zj5auGGia4Ye+wenmvFsvQ=; b=xCW3SbMPlyBhtOEpNKcHPvhVI2eEe5AW7c9jpSF/A4Uw5CiKJarM3vwfbtNXR4p9kg JTIef4LydFl72ldeUWMtAFmGW0VjFFBeooxhsdwv5q3r2EguH0RatRSPHeWs2BhSJx8h 55FCobZ8gcqLboX24avWL1Ql6jxz0Z5AAsCQxBolgXSL3XM728x2xf0+AvTc5b0mBU8y HAKx1LZTTLwmI+JJq3spIVvUvcXJnojJvTC7sTghJD58Mq8S72iQtTbiyEYcfMX2ZSXG kOdpVetQnM9S2oGVWUCpaM1dTceyMeB9Dh9zRGBhka7weWoDXUiAD3ZHjqOPru+qhDWP ofbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:sender:in-reply-to:references:date :message-id:subject:from:to:cc; bh=TlrxGUXAu4CulKSkD7Mb/Zj5auGGia4Ye+wenmvFsvQ=; b=lJGsj4v2r4R3gtLaQJDtZ3Cvpszzl7mVFVIDgT5eRrmdDvQ8/zrmeTlvRbaOg7P+wI OH9w5gK8fr2pLRq0CRuvLqPnOQ/1ES8H7o4iZq10aFqwXn1hPjU8Q5XCaXwaxS3CV9IH aA002aOfIR5wY++/jilFt43CR/VtiNKwdLZQa5PC2BXabI7ITa1SNAdWIyysTJqUzvQ7 tG9KAuupsTHmZjBo/5s1YoD6hBO2RS1jiyWHUxWjF9+logmkB42L2q4AzPfxR7ERZ3Ny 6Fw5nKXYVLKoqgNIjqKToBgCKK/AcDimLZ+V9VMjl5zBTp/qXk7uEF2raobgqVZbvKuS Mi7w== X-Gm-Message-State: AOPr4FU1n9jm3TeB34i8Ey73IGXMMt6U9uZP++ouoVkVWKpMYr2urkg3YYIaC2uP8PigKZI341PRjEAFinJLoQ== MIME-Version: 1.0 X-Received: by 10.50.221.133 with SMTP id qe5mr4819863igc.16.1460726963966; Fri, 15 Apr 2016 06:29:23 -0700 (PDT) Sender: wlosh@bsdimp.com Received: by 10.79.104.197 with HTTP; Fri, 15 Apr 2016 06:29:23 -0700 (PDT) X-Originating-IP: [50.253.99.174] In-Reply-To: <20160415114443.660453cb@nonamehost.local> References: <20160415114443.660453cb@nonamehost.local> Date: Fri, 15 Apr 2016 07:29:23 -0600 X-Google-Sender-Auth: YY0kd5JtRJKsiwau4a7wlXlDQ30 Message-ID: Subject: Re: Heads up From: Warner Losh To: Ivan Klymenko Cc: FreeBSD Current Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.21 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 13:29:24 -0000 Do you have this problem w/o CAM_NETFLIX_IOSCHED? What version of virtualbox? I've not booted with that in 3 years. Warner On Fri, Apr 15, 2016 at 2:44 AM, 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 >