Date: Tue, 19 Jan 2016 13:07:15 -0500 From: Shawn Webb <shawn.webb@hardenedbsd.org> To: Alan Somers <asomers@freebsd.org> Cc: Kurt Lidl <lidl@pix.net>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "src-committers@freebsd.org" <src-committers@freebsd.org> Subject: Re: svn commit: r294329 - in head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs: . sys Message-ID: <20160119180715.GA98067@mutt-hardenedbsd> In-Reply-To: <CAOtMX2idrWOpWbkYxPFn3yur8w-vgfBryhT4_0yiBvg10sWWRA@mail.gmail.com> References: <201601191700.u0JH0P6k061610@repo.freebsd.org> <569E6DA0.9010300@pix.net> <CAOtMX2idrWOpWbkYxPFn3yur8w-vgfBryhT4_0yiBvg10sWWRA@mail.gmail.com>
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--dDRMvlgZJXvWKvBx Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jan 19, 2016 at 10:20:38AM -0700, Alan Somers wrote: > On Tue, Jan 19, 2016 at 10:08 AM, Kurt Lidl <lidl@pix.net> wrote: > > Removing the ability to run different zpools on top of a zvol is > > a significant reduction in functionality of the entire system, and a hu= ge > > violation of the POLA. >=20 > The thing is, it never really worked in the first place. Panics and > deadlocks are so frequent that I don't think the feature was usable > for anybody. I actively use this every day and will be making even more use of it in the very near future. I haven't had a single kernel panic. I have had deadlocks at shutdown, but since it's a laptop and I'm sitting right in front of it, it's not a big deal. I'd say fix the underlying problem, don't prevent people from getting work done. >=20 > > > > At the very least, can you not add a sysctl that allows the > > dangerous behavior (even if it defaults to off)? Myself > > and certainly others rely on having being able to use a zpool > > installed into a zvol for hosting bhyve virtual machines. >=20 > Your use case should be unaffected. The guest has a different ZFS > instance than the host, so it should work just fine. Please let me > know if you have problems. --=20 Shawn Webb HardenedBSD GPG Key ID: 0x6A84658F52456EEE GPG Key Fingerprint: 2ABA B6BD EF6A F486 BE89 3D9E 6A84 658F 5245 6EEE --dDRMvlgZJXvWKvBx Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJWnntQAAoJEGqEZY9SRW7u0LcQAJyUonXZt0/aborbAkk6Jv6S +rkb9qTd8AHZpAeoB3A7TM9e0MNmCgvTXhKuxIJIaJkTv5zjQAtmoIUq4Y10bh+E DgHnTP8gH9eIPtR5QaqnXmIRMy+6ZeeUhS1pXebOERngcJ/n4Pb8zJgvoOYVlr3H EId8vLqgkrVpDx3UxT5RHdFZ9UKYO+RbC8LqzSUF5jHRQsSo9PLtvKzCDY78flOC DY0C1dm6ie8hCYOENFKNoZ8iFK+ZzzP+voPUO3epdfylWjWukET9yvwEK33jPrOa waVzMPfroTVE5k7Dhz99P+GtkkBtjK6fWhXQgqnuMIooQy5NJGvIfrFkgwNl4c+a 3zhbR3VlBTOGd5t+4BkV7wQO7fm05h2CQekpNRHbhmAt1fql3DlkqFILdekx17Y5 cI03hnn6QD1bRPY4y7AIVtw0/hHTAZL9iA0XO6TzGTOWeNEe8pLbltaYi/G6eLEy fAIKQ+/YhpEHwKwkAuplQpBxeX3ihEv4u9giOI4Sp5mbkymZPagjhUj71kCbfA82 TJosm8Zkyru5MuchatOKiVsNUjHQ5esoHY5HAEas7H4GryqSIGUAAZmurgGjHPoB wnJD+GQeSfXDa8Fofvhd+KWY2xeCLdU6OWHKoKeiVQH1ehep5kUiqRu8sNUMDGcQ UDTvxkvVNbAQa4KSt4NX =YXCt -----END PGP SIGNATURE----- --dDRMvlgZJXvWKvBx--
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