From owner-freebsd-emulation@freebsd.org Tue Sep 22 20:57:50 2015 Return-Path: Delivered-To: freebsd-emulation@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 EC8F1A03455 for ; Tue, 22 Sep 2015 20:57:50 +0000 (UTC) (envelope-from imb@protected-networks.net) Received: from mail.auburn.protected-networks.net (mail.auburn.protected-networks.net [IPv6:2001:470:1f07:4e1::3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail.auburn.protected-networks.net", Issuer "Protected Networks Root CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id B2114186A for ; Tue, 22 Sep 2015 20:57:50 +0000 (UTC) (envelope-from imb@protected-networks.net) Received: from toshi.auburn.protected-networks.net (toshi.auburn.protected-networks.net [192.168.1.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "Iain Butler", Issuer "RSA Class 2 Personal CA v2" (verified OK)) (Authenticated sender: imb@mail.auburn.protected-networks.net) by mail.auburn.protected-networks.net (Postfix) with ESMTPSA id BF70CB90D; Tue, 22 Sep 2015 16:57:33 -0400 (EDT) Subject: Re: VirtualBox mangles memory To: Martin Birgmeier References: <55FE9662.7000406@aon.at> <1442866256.1127084.389759513.29E96282@webmail.messagingengine.com> <56017026.6040809@aon.at> <5601AB71.9000003@aon.at> Cc: =?UTF-8?Q?Bernhard_Fr=c3=b6hlich?= , "freebsd-emulation@freebsd.org" From: Michael Butler Message-ID: <5601C0B8.4000905@protected-networks.net> Date: Tue, 22 Sep 2015 16:57:28 -0400 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 22 Sep 2015 20:57:51 -0000 On 09/22/15 16:20, Adam Vande More wrote: > On Tue, Sep 22, 2015 at 2:26 PM, Martin Birgmeier wrote: >> I am quite sure that the >> cause is to be found there >> > > I don't see any cause for surety in the info you have given us. Have you > tried any basic steps like monitoring usage during these events or running > it under truss/valgrind etc to find out what is going on? > Another data point .. I run it on -CURRENT and there have been a number of VM-related changes of late but I don't have any problems with it. However, you *must* recompile (at least) the modules whenever the kernel is rebuilt as they depend heavily on the underlying kernel structures, imb