From owner-freebsd-stable@freebsd.org Fri Jul 24 00:23:08 2015 Return-Path: Delivered-To: freebsd-stable@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 47A4E9A95E2 for ; Fri, 24 Jul 2015 00:23:08 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id 3502211B1; Fri, 24 Jul 2015 00:23:08 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from FreeBSD.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by freefall.freebsd.org (Postfix) with ESMTP id 895BF134A; Fri, 24 Jul 2015 00:23:07 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Date: Fri, 24 Jul 2015 00:23:05 +0000 From: Glen Barber To: Michelle Sullivan Cc: Jason Unovitch , freebsd-stable@freebsd.org, herbert@oslo.ath.cx Subject: Re: 10.2-Beta i386..what's wrong..? Message-ID: <20150724002305.GL84931@FreeBSD.org> References: <55B17B7A.4080402@gmail.com> <20150723234805.GK84931@FreeBSD.org> <55B18488.9060602@sorbs.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="GeDkoc8jIzHasOdk" Content-Disposition: inline In-Reply-To: <55B18488.9060602@sorbs.net> X-Operating-System: FreeBSD 11.0-CURRENT amd64 X-SCUD-Definition: Sudden Completely Unexpected Dataloss X-SULE-Definition: Sudden Unexpected Learning Event X-PEKBAC-Definition: Problem Exists, Keyboard Between Admin/Computer User-Agent: Mutt/1.5.23 (2014-03-12) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Jul 2015 00:23:08 -0000 --GeDkoc8jIzHasOdk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 24, 2015 at 02:19:20AM +0200, Michelle Sullivan wrote: > Glen Barber wrote: > > > > ZFS on i386 requires KSTACK_PAGES=3D4 in the kernel configuration to wo= rk > > properly, as noted in the 10.1-RELEASE errata (and release notes, if > > I remember correctly). > > > > We cannot set KSTACK_PAGES=3D4 in GENERIC by default, as it is too > > disruptive. =20 >=20 > Why? >=20 Because it takes resources away from userland threads. > > If you are using ZFS on i386, you *must* build your own > > kernel for this. It is otherwise unsupported by default. > > =20 > Why is zfs on i386 so hard? Why is it even in the GENERIC kernel if > it's unsupported? >=20 It is not in GENERIC by default. You have to specifically kldload(8) zfs.ko. Glen --GeDkoc8jIzHasOdk Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJVsYVpAAoJEAMUWKVHj+KTrJEP/jKfVfpVugERU1hdctObLYaB xNtWpnb+8BBasua25hq6mmE3wZA9OeOUEkBAUIHdj701McJQapAoaNzSJ3Gy4waZ diZN6FtA3LJkL+3Na6p3Lse22BJPDgdDUPlDSOwKS34YwebAHsfFTbllp2PJSngY PDY8J9tL4zitt9lE7XwIPuhq4EB3xTDn/CerXPUMEzJb4X8gGqD1IEkw9LvVBAE+ cAW3eNHffDGcOGszEqVgIE335aV2oXFZbdixLq9VhrZ44u5HpzgwvyWOTk2uBvm3 4WHA4T0sLpQ6T1SFxGKKLNdcdLUGwTDU/S+yvGSwfm2qukT4J8aNdkqtj7fSeqaS IF8zxdSEdjOYdC6jaTgkEr7YyrvehME/HnccRrkLdoTKzSCpsqmjRdPmbN54r4/F XgcH+gdQeaaqKOIoYChoDnovZN7eAVM78Dcx0/eV30mTQ5XYc7HhmKhdbimL80Xc m0tiO2WNHlp2GJO7ZpFBKYKMK2XzFV1vr7VOfoS6lcFyPT8mAagf1mc5eT70ajV9 qjjQ1xnEnqrxP4SWMZeiku6gr4TfSUhvZs9KjXKN6wljhmzgx1maUcCsh/bGmZj4 LevdQs/BJ315UPGNRy2DUVvhN7yMWTVWVU1yk8c4C7GyM23FmolFRnmuqgDhsX0C y5Ah8k/jKoXd8Bx5m5Xy =1rUd -----END PGP SIGNATURE----- --GeDkoc8jIzHasOdk--