From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.gocept.net ([195.62.125.19]:46701 "EHLO mail.gocept.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751203AbdH1TBC (ORCPT ); Mon, 28 Aug 2017 15:01:02 -0400 From: Christian Theune Message-Id: Content-Type: multipart/signed; boundary="Apple-Mail=_FFF083B7-A30C-405A-BBFB-E8A00E66514A"; protocol="application/pgp-signature"; micalg=pgp-sha512 Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: null pointer reference after crash Date: Mon, 28 Aug 2017 21:00:59 +0200 In-Reply-To: <20170828174238.GE4757@magnolia> References: <20170828174238.GE4757@magnolia> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: "Darrick J. Wong" Cc: linux-xfs@vger.kernel.org --Apple-Mail=_FFF083B7-A30C-405A-BBFB-E8A00E66514A Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi, > On Aug 28, 2017, at 7:42 PM, Darrick J. Wong = wrote: >=20 > On Mon, Aug 28, 2017 at 07:23:19PM +0200, Christian Theune wrote: >> Hi, >>=20 >> we stumbled over this today as a host rebooted with an unrelated = (iommu) >> kernel crash and got completely stuck after this: >>=20 >> I=E2=80=99m currently running xfs_repair on all disks and will then = see whether this >> will resolve, still I guess you want to know about it. Kernel is = 4.9.43 >> vanilla. Let me know if you need more data. >=20 > Does commit cd87d8679201 ("xfs: don't crash on unexpected holes in = dir/attr > btrees") fix this problem? It'll be in 4.13, maybe someone can = backport it > to 4.9? Thanks for the suggestion. I=E2=80=99ll keep that in mind in case I see = this again. > (Assuming you can get it to reproduce reliably?) I have only seen it once today and hopefully won=E2=80=99t see it again. = We have had some storage servers that run multiple SSD and HDD disks = (for Ceph) crash multiple times a week lastly due to the IOMMU issues = that resulted in hardware watchdog reboots, so I guess those xfs' did = have quite some noise in it. Not sure I can do anything to reproduce it at all. *fingers crossed* Christian -- Christian Theune =C2=B7 ct@flyingcircus.io =C2=B7 +49 345 219401 0 Flying Circus Internet Operations GmbH =C2=B7 http://flyingcircus.io Forsterstra=C3=9Fe 29 =C2=B7 06112 Halle (Saale) =C2=B7 Deutschland HR Stendal HRB 21169 =C2=B7 Gesch=C3=A4ftsf=C3=BChrer: Christian Theune, = Christian Zagrodnick --Apple-Mail=_FFF083B7-A30C-405A-BBFB-E8A00E66514A Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP -----BEGIN PGP SIGNATURE----- iQEcBAEBCgAGBQJZpGhrAAoJEKuh8lKpfGLOKRgIANSmHelT7WjAQ1N90+l1lJFp MLCW7MSyGX9VbySC45hyom8Uze8JHwgGZYT+yyNt+0pgXmZFxTvmtmgSaafe2v9A a8TdDywD7uRhvnssWXKIbXO22C6cgqKXHrgGahmSjaWyXsHPb4tnXKpdHQzwTaB4 HdSo8rFdKUx6r+JdGgQj1y3dQE7ncsNF+uMgIusmiB9eN83yCsHz8rILKBZADjwv 2WUgHmwcmXlfs39+EmRyUmvlAxd7FsG9qamXiB1/0w4hAHz3pKV2VjsnWiRURRqu kC/4nFFtgEd0vWnyiSePP878WK0vfUW3qotEUJ0YXxWpocThKDisWRetdsHCK2w= =wlxB -----END PGP SIGNATURE----- --Apple-Mail=_FFF083B7-A30C-405A-BBFB-E8A00E66514A--