From owner-freebsd-stable@freebsd.org Tue Feb 23 22:43:19 2021 Return-Path: Delivered-To: freebsd-stable@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 1AC70555ED6 for ; Tue, 23 Feb 2021 22:43:19 +0000 (UTC) (envelope-from peter@rulingia.com) Received: from vtr.rulingia.com (vtr.rulingia.com [IPv6:2001:19f0:5801:ebe:5400:1ff:fe53:30fd]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA512 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "vtr.rulingia.com", Issuer "R3" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DlYx24dr5z4mMv; Tue, 23 Feb 2021 22:43:18 +0000 (UTC) (envelope-from peter@rulingia.com) Received: from server.rulingia.com (ppp239-208.static.internode.on.net [59.167.239.208]) by vtr.rulingia.com (8.16.1/8.15.2) with ESMTPS id 11NMh2US088822 (version=TLSv1.3 cipher=AEAD-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 24 Feb 2021 09:43:07 +1100 (AEDT) (envelope-from peter@rulingia.com) DKIM-Filter: OpenDKIM Filter v2.10.3 vtr.rulingia.com 11NMh2US088822 X-Bogosity: Ham, spamicity=0.000000 Received: from server.rulingia.com (localhost.rulingia.com [127.0.0.1]) by server.rulingia.com (8.16.1/8.16.1) with ESMTPS id 11NMgu8M089973 (version=TLSv1.3 cipher=AEAD-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 24 Feb 2021 09:42:56 +1100 (AEDT) (envelope-from peter@server.rulingia.com) Received: (from peter@localhost) by server.rulingia.com (8.16.1/8.16.1/Submit) id 11NMguh2089972; Wed, 24 Feb 2021 09:42:56 +1100 (AEDT) (envelope-from peter) Date: Wed, 24 Feb 2021 09:42:56 +1100 From: Peter Jeremy To: Chris Anderson Cc: Andriy Gapon , freebsd-stable@freebsd.org Subject: Re: lots of "no such file or directory" errors in zfs filesystem Message-ID: References: <48b78acb-7667-7829-8dd0-e753b7ac3336@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="Qk2LhdF8KDKFZezO" Content-Disposition: inline In-Reply-To: X-PGP-Key: http://www.rulingia.com/keys/peter.pgp X-Rspamd-Queue-Id: 4DlYx24dr5z4mMv X-Spamd-Bar: ---- X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Feb 2021 22:43:19 -0000 --Qk2LhdF8KDKFZezO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On 2021-Feb-23 11:30:58 -0600, Chris Anderson wrote: >nope, it led a pretty boring life. that zfs filesystem was created on that >server and has been on the same two mirrored disks for its lifetime. Does the server have ECC RAM? Possibly it's a bitflip somewhere before the data got to disk. >prior to the upgrades) the server does have a relatively modest amount of >ram (2GB). dunno if that makes it more likely that these kinds of issues >get triggered. Low amounts of RAM are going to increase the IO load but shouldn't otherwise impact the filesystem consistency. I have a FreeBSD test system that's running ZFS in <1GB RAM and rebuilding itself daily for multiple years and haven't run into any ZFS corruption issues. --=20 Peter Jeremy --Qk2LhdF8KDKFZezO Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEE7rKYbDBnHnTmXCJ+FqWXoOSiCzQFAmA1hOlfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEVF QjI5ODZDMzA2NzFFNzRFNjVDMjI3RTE2QTU5N0EwRTRBMjBCMzQACgkQFqWXoOSi CzTPdQ//Sqltm92Sj03H4Vf4a3MFYL1US73IrcqPPgDVQqOuZIG6ESt8ZJQJsYpO 2aUi8/PwSK4B+WxsS0Pwa/24dE7y9DuOIHCXV8M+jzbvGXEaVBwDrVctr+o8TCm1 Zrbi9htRXEaSe+QlTb2KHzabn2ows3yvCurKBx1MiBO6GqADU2DsC/MPvd+KsJ0W 2zBUvKKt5xMsdUlGcpwfE3RUJKzDo2ChVEyezZ74+Buj+WSdDkVF7vBX+5J7ZUWj uYqoN/M5Rw1ESQj7OUV3KsOofilheNPi9D7PjkFwT7AeX/cErtg6+5UUvu8Ybc4b V5XI2ME5Auu6sz00VoFj4NI+JlysXxkJCBvyjdG60inKuOM733VdXEDgcIl/TvyW Ci7kMsvVZpXyQnUjL0dwpqQgVvDeGPVgi9RSaDxO9wbFL3Zp5E0ClxSPab57lNZD /rvCVKhG3VlGnSJdgnhsloLnG6EVyo7jMzi3npAGIN4qkK3jXL3i9EoSsBfe9Zhv pIE/SUu9x+xS5rAPUAW6imTgd6TyXrpxEDkrULfcrPr2BTLBaDYJzK73NIbNdf7r OaWHwX396r3Q1BVbSd1AKtoOd6eW2J11vwX6R7RCVoshl0zUM/OH6a0ngJffW5nI oBqO5C56gLbqjkDGWR8cYstCDBBr7GqSqf4Z1XYMZXNhgEKlfTo= =yjPp -----END PGP SIGNATURE----- --Qk2LhdF8KDKFZezO--