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=-5.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 14882C433E0 for ; Tue, 4 Aug 2020 21:21:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DE3B920842 for ; Tue, 4 Aug 2020 21:21:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fieldses.org header.i=@fieldses.org header.b="dIr28ctZ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726644AbgHDVVc (ORCPT ); Tue, 4 Aug 2020 17:21:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36170 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726101AbgHDVVc (ORCPT ); Tue, 4 Aug 2020 17:21:32 -0400 Received: from fieldses.org (fieldses.org [IPv6:2600:3c00:e000:2f7::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07829C06174A for ; Tue, 4 Aug 2020 14:21:31 -0700 (PDT) Received: by fieldses.org (Postfix, from userid 2815) id 2DFB19238; Tue, 4 Aug 2020 17:21:28 -0400 (EDT) DKIM-Filter: OpenDKIM Filter v2.11.0 fieldses.org 2DFB19238 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fieldses.org; s=default; t=1596576088; bh=wxupdSrHcU6qkYlO1fDUVOVEHsL3xf/8Nki//4HSvn8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dIr28ctZUaMUY/YRyOQugzP1UDnuZGaPnrdE1M4ig5ljPe0slOOm1FNIUXfGOmyaI m0Qq0pUwuhIRgbqUCAijK0clVIXdzAAd3m3gdjD6jJ+DSGL7v5qz9JA2vwX6Xis64J wkyq+gXpMrqiN/yZBW8bJJYSga+p7S42MJQDZMN4= Date: Tue, 4 Aug 2020 17:21:28 -0400 From: "J. Bruce Fields" To: Stephen Hemminger Cc: Chuck Lever , linux-nfs@vger.kernel.org Subject: Re: Fw: [Bug 208807] New: Problem with NFS kernel server code Message-ID: <20200804212128.GC25981@fieldses.org> References: <20200804140744.35ce4bdd@hermes.lan> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200804140744.35ce4bdd@hermes.lan> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Commented, but I guess it should really be reassigned to nfsd, I'm not sure how. --b. On Tue, Aug 04, 2020 at 02:07:44PM -0700, Stephen Hemminger wrote: > > > Begin forwarded message: > > Date: Tue, 04 Aug 2020 11:33:23 +0000 > From: bugzilla-daemon@bugzilla.kernel.org > To: stephen@networkplumber.org > Subject: [Bug 208807] New: Problem with NFS kernel server code > > > https://bugzilla.kernel.org/show_bug.cgi?id=208807 > > Bug ID: 208807 > Summary: Problem with NFS kernel server code > Product: Networking > Version: 2.5 > Kernel Version: 5.8.0 > Hardware: All > OS: Linux > Tree: Mainline > Status: NEW > Severity: normal > Priority: P1 > Component: Other > Assignee: stephen@networkplumber.org > Reporter: nanook@eskimo.com > Regression: No > > Created attachment 290759 > --> https://bugzilla.kernel.org/attachment.cgi?id=290759&action=edit > Output of dmesg while machine was dying > > After about an hour and a half of operating on 5.8.0, one of our NFS servers > began to slow and basically ground to a halt. Looks like a spinlock issue in > the NFS kernel server code. I'll attach the output of dmesg while the machine > was dying in a file called "spinlock". A shame because while it was running, > the performance of 5.8 was astounding. Only the NFS servers seem to get ill, > the > client machines seem to run fine on 5.8 so far at least. > > -- > You are receiving this mail because: > You are the assignee for the bug.