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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS autolearn=ham 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 538DFC43381 for ; Thu, 21 Feb 2019 18:19:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2ED6F2083B for ; Thu, 21 Feb 2019 18:19:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727041AbfBUSTM (ORCPT ); Thu, 21 Feb 2019 13:19:12 -0500 Received: from mx2.math.uh.edu ([129.7.128.33]:49102 "EHLO mx2.math.uh.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726165AbfBUSTM (ORCPT ); Thu, 21 Feb 2019 13:19:12 -0500 Received: from epithumia.math.uh.edu ([129.7.128.2]) by mx2.math.uh.edu with esmtp (Exim 4.91) (envelope-from ) id 1gwsw4-000117-Rw; Thu, 21 Feb 2019 12:19:06 -0600 Received: by epithumia.math.uh.edu (Postfix, from userid 7225) id C3B7F801B44; Thu, 21 Feb 2019 12:19:04 -0600 (CST) From: Jason L Tibbitts III To: Trond Myklebust Cc: "bcodding\@redhat.com" , "Anna.Schumaker\@netapp.com" , "linux-nfs\@vger.kernel.org" , "Chuck.Lever\@oracle.com" Subject: Re: Need help debugging NFS issues new to 4.20 kernel References: <87ftt2cdeq.fsf@hippogriff.math.uh.edu> <87imxwab12.fsf@hippogriff.math.uh.edu> <662CE7B3-235E-4E2D-9C8C-0F6233F3085F@redhat.com> <87d0o3aadg.fsf@hippogriff.math.uh.edu> <2ab06cbdc19d7a642e04f1e66abbeaa507b034bc.camel@hammerspace.com> Date: Thu, 21 Feb 2019 12:19:04 -0600 In-Reply-To: (Trond Myklebust's message of "Wed, 20 Feb 2019 15:41:31 +0000") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org >>>>> "TM" == Trond Myklebust writes: TM> Can you please try the following patch? It uses a different approach TM> to dealing with interrupted NFSv4.1 RPC calls. I can say that so far, after applying this last night to 50 machines and users having logged for a bit over five hours now, things appear to be working properly. I haven't seen any issues this morning whereas with an unpatched kernel I would have expected to see several hangs (or at least user-initiated reboots) by now. I will of course continue to monitor things, but at this point, feel free to add Tested-by: Jason Tibbitts - J<