From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EFB67C3A5A7 for ; Tue, 3 Sep 2019 18:09:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C626822DBF for ; Tue, 3 Sep 2019 18:09:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=stwm.de header.i=@stwm.de header.b="oUfKGroB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729919AbfICSJp (ORCPT ); Tue, 3 Sep 2019 14:09:45 -0400 Received: from mailin.studentenwerk.mhn.de ([141.84.225.229]:33810 "EHLO email.studentenwerk.mhn.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727352AbfICSJp (ORCPT ); Tue, 3 Sep 2019 14:09:45 -0400 X-Greylist: delayed 413 seconds by postgrey-1.27 at vger.kernel.org; Tue, 03 Sep 2019 14:09:44 EDT Received: from mailhub.studentenwerk.mhn.de (mailhub.studentenwerk.mhn.de [127.0.0.1]) by email.studentenwerk.mhn.de (Postfix) with ESMTP id 46NFDB3KQbzRhSl; Tue, 3 Sep 2019 20:02:50 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stwm.de; s=stwm-20170627; t=1567533770; bh=cDBU6ESHTAM3Zu+XZG0ThiswLTZCCx+T14baC5kz5RE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oUfKGroBMvZr9bWL6bvu2wHF6cW24EWEK2kkcpSnfuO4PJqhNs/GyHai4u8Ws6Jww 83xWPkP3NWu/+5KIbnIH5RysurPrZ6Cqsnvp0RDeJtwwaii/64f8FFLtjJJCVxYFlW J2R44xg9DCGklrBW8YIzgsUNjBl2hQswz0qiaV2OXm5d+MKfMaMqFhJ9AEcl1Ybdcq BZ0TbdsO0dV6ddXrZDa0+w79j1mDRzO6MzEgdrSjCSacDmCIE+TCfpwv3hCXUHLEEX EWW43y0dua6vMakLM8iwCOPZ+yxbUD6CX3ruDFA0dyjC2S8X6WqU93iF/E0KsVNBAm aYiCkmbE3DmJw== From: Wolfgang Walter To: Jason L Tibbitts III Cc: "J. Bruce Fields" , linux-nfs@vger.kernel.org, km@cm4all.com, linux-kernel@vger.kernel.org Subject: Re: Regression in 5.1.20: Reading long directory fails Date: Tue, 03 Sep 2019 20:02:50 +0200 Message-ID: <4418877.15LTP4gqqJ@stwm.de> User-Agent: KMail/4.14.3 (Linux/5.0.6-050006-generic; KDE/4.14.13; x86_64; ; ) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Am Dienstag, 3. September 2019, 10:49:48 schrieb Jason L Tibbitts III: > >>>>> "JLT" =3D=3D Jason L Tibbitts writes: > JLT> Certainly a server reboot, or maybe even just > JLT> unmounting and remounting the filesystem or copying the data to > JLT> another filesystem would tell me that. In any case, as soon as = I > JLT> am able to mess with that server, I'll know more. >=20 > Rebooting the server did not make any difference, and now more users = are > seeing the problem. At this point I'm in a state where NFS simply is= n't > reliable at all, and I'm not sure what to do. If Centos 8 were out, > I'd work on moving to that just so that the server was a little more > modern. (Currently the server is Centos 7.) I guess I could try usi= ng > Fedora, or installing one of the upstream kernels, just in case this = has > to do with some interaction between the client and the old RHEL7 kern= el. >=20 > I do have a packet capture of a directory listing that fails with EIO= , > but I'm not sure if it's safe to simply post it, and I'm not sure wha= t > tshark options would be useful in decoding it. >=20 > I do know that I can rsync one of the problematic directories to a > different server (running the same kernel) and it doesn't have the sa= me > problem. What I'll try next is rsyncing to a different filesystem on= > the same server, but again I'll have to wait until people log off to = do > proper testing. >=20 > - J< What filesystem do you use on the server? xfs? If yes, does it use 64bi= t=20 inodes (or started to use them)? Do you set a fsid when you export the=20= filesystem? Regards, --=20 Wolfgang Walter Studentenwerk M=FCnchen Anstalt des =F6ffentlichen Rechts