From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail1.g1.pair.com ([66.39.3.162]:46582 "EHLO mail1.g1.pair.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753521AbeBVLeT (ORCPT ); Thu, 22 Feb 2018 06:34:19 -0500 Date: Thu, 22 Feb 2018 12:33:51 +0100 From: Emmanuel Florac Subject: Re: XFS corruption of in-memory data detected with KVM Message-ID: <20180222123351.256227f2@harpe.intellique.com> In-Reply-To: References: <20180221114627.tbdequwrbmsakvcu@odin.usersys.redhat.com> <20180221175540.618eda28@harpe.intellique.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; boundary="Sig_/cVbxXcgU.Uq+ObmdXSx1hq1"; protocol="application/pgp-signature" Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-xfs@vger.kernel.org Cc: Andrea Mazzocchi --Sig_/cVbxXcgU.Uq+ObmdXSx1hq1 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Le Thu, 22 Feb 2018 10:11:08 +0100 Andrea Mazzocchi =C3=A9crivait: Please keep the list cc'ed, in case someone comes with another idea. > > Hard to say, what KVM disk format are you using? Raw, qcow2, LVM > > volumes? If these are files (raw or qcow2), what kind of filesystem > > and hardware stack are they living on? Are there any error on the > > hosting system? =20 >=20 > Software configuration of provider's hypervisor host nodes is held in > confidentiality: > I can't know KVM version and configurations, unless something is > shown in dmesg. Hum, so we can't know for sure if something went wrong outside the VM, annoying. > > At tne VM level, do you see any IO error? Are you using the virtio > > disk driver or something else? =20 >=20 > The errors we saw were: we failed to establish an SSH connection, > so we went to the provider's console of the VPS and the dmesg was > shown: the log seemed all fine until "systemd[1]: found device > /dev/mapper/centos-root" > (which is where it begins the dmesg I posted). > We are using virtio disk driver. I see. Now you'll need to boot the VM from some rescue system (possibly the installation image of CentOS) to run xfs_repair before going any further, unfortunately. --=20 ------------------------------------------------------------------------ Emmanuel Florac | Direction technique | Intellique | | +33 1 78 94 84 02 ------------------------------------------------------------------------ --Sig_/cVbxXcgU.Uq+ObmdXSx1hq1 Content-Type: application/pgp-signature Content-Description: Signature digitale OpenPGP -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iEYEARECAAYFAlqOqrwACgkQX3jQXNUicVZ+VwCg8XpYyQNf7lI62scPrTSh+ZNk g+AAnicSUO2kjFmJa8HMciUCrAi+gKFu =fa+9 -----END PGP SIGNATURE----- --Sig_/cVbxXcgU.Uq+ObmdXSx1hq1--