Date: Sat, 8 Feb 2014 15:57:27 -0500 From: Aryeh Friedman <aryeh.friedman@gmail.com> To: Adam Vande More <amvandemore@gmail.com> Cc: FreeBSD virtualization <freebsd-virtualization@freebsd.org> Subject: Re: Report of my virtual network lab migrated from virtualbox to bhyve Message-ID: <CAGBxaXk-hSd5E4QEQfLGfuq3hGKHOY-fpnvbatROOG0qWW0pvA@mail.gmail.com> In-Reply-To: <CA%2BtpaK09B8HAKLdp2EQRgDfON1%2B-r_Nw6WMJ0ncF1yyW-h-6ig@mail.gmail.com> References: <CA%2Bq%2BTcqw7uHLV3=DeZF4=i0hbmECkPP-d5-4ReSQqKCV-JaJ=Q@mail.gmail.com> <52F5363D.8040102@freebsd.org> <CA%2Bq%2BTcrZZb5o51F4pvLtxKM%2BNvO6SdVEQk_UMLLYSF8JfK6gpg@mail.gmail.com> <CA%2BtpaK2QCoxRocF7=zY3j9VETM7SJqFSVwpFGC0DuPSgFKJwZA@mail.gmail.com> <CAGBxaXmgzLncYi-5YPamqXD2nYvHi_eMUGQQe3hDmPEdyxd5%2Bw@mail.gmail.com> <CA%2BtpaK1VEw%2BRMfqLBukaXXADXtW82gC73TzXtiVGhSc9DrN=Qw@mail.gmail.com> <CAGBxaXk=NxY%2BENmCaW_GmHJCxYDR1-W-41W__xooTjz=ic1UEg@mail.gmail.com> <CA%2BtpaK3WvyZ2_Y5XunLV57hhwqpDFoRqQSZAxF=SKS4wib0t0A@mail.gmail.com> <CAGBxaXmFhZtJECH5-d_nY=e2ek=1ANFTsLTv6EHAFXEA34Cskw@mail.gmail.com> <CA%2BtpaK09B8HAKLdp2EQRgDfON1%2B-r_Nw6WMJ0ncF1yyW-h-6ig@mail.gmail.com>
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On Sat, Feb 8, 2014 at 3:54 PM, Adam Vande More <amvandemore@gmail.com>wrote: > > On Sat, Feb 8, 2014 at 2:14 PM, Aryeh Friedman <aryeh.friedman@gmail.com>wrote: > >> >> It sounds almost identical to the qcow2 security issue being discussed on >> qemu-devel@qemu.org recently. This might be a *HUGE* win for bhyve >> then in considering that it's default format is raw (should ahci-hdd be the >> default?). devel/qemu (not sure about -dev) uses qcow2 as a default and >> when playing with it on other OS's I found that it seemed to default to >> that also. It is my understand that most of the open source cloud >> platforms use qcow2 as their default also (I remember this from an attempt >> to install openstack grizzly last summer... I have not checked havana >> though... can any of the freebsd-openstack confirm this?). >> > > I don't consider it a huge win because the possibility of using an > insecure device precludes it. Someone high on the tree bhyve needs to > confirm or deny this otherwise it is unsafe to recommend bhyve > or petitecloud. No offense intended, I really hope it succeeds and will > likely use it if it does. I cannot use anything which leaves the host > open. I am also unclear on how bhyve bypasses GEOM which *should* prevent > any of the symptoms discussed. > The point was that raw has no issue and this is the default for both bhyve and petitecloud (to avoid certain list politics I didn't mention it by name before). Sparse is the issue and thus qemu, openstack and cloudstack (as well as likely vbox) are a problem. -- Aryeh M. Friedman, Lead Developer, http://www.PetiteCloud.org
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