From owner-freebsd-fs@freebsd.org Fri Jul 22 06:26:46 2016 Return-Path: Delivered-To: freebsd-fs@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 C75E4BA14C7 for ; Fri, 22 Jul 2016 06:26:46 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from smtp.infracaninophile.co.uk (smtp.infracaninophile.co.uk [81.2.117.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "smtp.infracaninophile.co.uk", Issuer "infracaninophile.co.uk" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 55FDC1CC0; Fri, 22 Jul 2016 06:26:46 +0000 (UTC) (envelope-from matthew@FreeBSD.org) Received: from liminal.local (liminal.infracaninophile.co.uk [IPv6:2001:8b0:151:1:3636:3bff:fed4:b0d6]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: m.seaman@infracaninophile.co.uk) by smtp.infracaninophile.co.uk (Postfix) with ESMTPSA id E31D48087; Fri, 22 Jul 2016 06:26:35 +0000 (UTC) Authentication-Results: smtp.infracaninophile.co.uk; dmarc=none header.from=FreeBSD.org Authentication-Results: smtp.infracaninophile.co.uk/E31D48087; dkim=none; dkim-atps=neutral Subject: Re: ZFS snapshot automount -- not creating '..' directory links correctly? To: Andriy Gapon , freebsd-fs@FreeBSD.org References: From: Matthew Seaman Message-ID: <83e4c7de-9d35-e995-52bc-f2a5cce3ad46@FreeBSD.org> Date: Fri, 22 Jul 2016 07:26:35 +0100 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="S0kjLDHsKUO2h8HIhQaPRAIMGGHTM89qR" X-Spam-Status: No, score=-1.2 required=5.0 tests=BAYES_00,SPF_SOFTFAIL autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on smtp.infracaninophile.co.uk X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 22 Jul 2016 06:26:46 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --S0kjLDHsKUO2h8HIhQaPRAIMGGHTM89qR Content-Type: multipart/mixed; boundary="Fl9oIOk4hWPgJ1F5Lxnqc4d8vvSGVMSBa" From: Matthew Seaman To: Andriy Gapon , freebsd-fs@FreeBSD.org Message-ID: <83e4c7de-9d35-e995-52bc-f2a5cce3ad46@FreeBSD.org> Subject: Re: ZFS snapshot automount -- not creating '..' directory links correctly? References: In-Reply-To: --Fl9oIOk4hWPgJ1F5Lxnqc4d8vvSGVMSBa Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On 21/07/2016 11:50, Andriy Gapon wrote: > On 21/07/2016 12:42, Matthew Seaman wrote: >> Hi, >> >> Ever since I upgraded to 11.0-BETA1, my tarsnap backups have been >> misbehaving. While corresponding with Colin, and trying to diagnose t= he >> problem I discovered that there seems to be a problem with the '..' li= nk >> in an automounted snapshot. >> >> It's easy to reproduce: >> >> # zfs create zroot/empty >> # zfs snapshot zroot/empty@20160721-1011 >> >> # cd /empty/.zfs/snapshot/20160721-1011 >> # stat -f "%N: %HT%SY" \ >> /empty /empty/.zfs /empty/.zfs/snapshot \ >> /empty/.zfs/snapshot/20160721-1011 . .. >> /empty: Directory >> /empty/.zfs: Directory >> /empty/.zfs/snapshot: Directory >> /empty/.zfs/snapshot/20160721-1011: Directory >> .: Directory >> stat: ..: stat: Not a directory >> >> This is on: >> >> # uname -a >> FreeBSD lucid-nonsense.infracaninophile.co.uk 11.0-BETA1 FreeBSD >> 11.0-BETA1 #2 r302482: Sat Jul 9 15:37:08 BST 2016 >=20 > This is fixed in 302994. > Sorry about the breakage. >=20 >> root@lucid-nonsense.infracaninophile.co.uk:/usr/obj/usr/src/sys/GENERI= C >> amd64 >> >> Attempting the same test on a 10.3-STABLE machine returned '..' as a >> directory perfectly happily. Thanks for that. I upgraded and now my backups are working properly agai= n. Cheers, Matthew --Fl9oIOk4hWPgJ1F5Lxnqc4d8vvSGVMSBa-- --S0kjLDHsKUO2h8HIhQaPRAIMGGHTM89qR Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- iQJ8BAEBCgBmBQJXkbybXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ2NTNBNjhCOTEzQTRFNkNGM0UxRTEzMjZC QjIzQUY1MThFMUE0MDEzAAoJELsjr1GOGkATiIYP/0oBxH0vbKg86XAewpBUamaf xaZcuI8tClLMSdVRFR64NU3Z3GuejiHWoj1ajMzD1pw8O1tsH/xpNzD8IBNjfRyz YGMlEQEIOUwcC+XyI4CHkN/4A3rQIn2wMutbHMecXYTN46TXHvCdNDsAaqie+E// N4wFZPfVMivA0Rc9WJ7EGdBoiK/L26bS+82jHplhHYnB3yLZ19iSNdx4SFWHfb9h zN9pZ7aHIT7DsfQlVpUVxSb1z7+EVfK7F3dwoR0ohP6MaaJWVmPAYTBs5WCE1B57 W2n6zwowluohRQ7AUKzI0kxyHSrBHO7ifftsajGrKXPV0ils30pX6c+am53SEQz2 qwSJuzXTczWA5jis3zTabvpdb2YFsNR9JRcepXud/O7aY8VGgZvEKbUDRyk774vY jX7t9eJsVA9cBZMz5zlhjPTvkW0YHLz7of+We77H2VTwxBYW3/g4tM2CqpQy9ta+ e/fzu3GoHyQ9OIH4Bk2U2qRauQHHev+Q0o+GO1Ev1sokcdrZ3MEhudSkquOF/XIA ah3rY8c86fWO4tZiERlZ1tnuQ3dR7paCy1ABRAYKovb3PACPw3qC2VUDdYqhA6g5 F6GHObGA5s/yl3wQ70ax9wg0NL9ANzYPL33SptwdWdVwBPQpD1IxJUTC4K3UH12h 4pCyixKsuQ7xnJyXdbB2 =MDu3 -----END PGP SIGNATURE----- --S0kjLDHsKUO2h8HIhQaPRAIMGGHTM89qR--