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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD66DC4332F for ; Thu, 22 Dec 2022 13:30:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229698AbiLVNa1 (ORCPT ); Thu, 22 Dec 2022 08:30:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235212AbiLVNaU (ORCPT ); Thu, 22 Dec 2022 08:30:20 -0500 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7D8B3DEF3; Thu, 22 Dec 2022 05:30:18 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.de; s=s31663417; t=1671715814; bh=MKbfsu4NWqfI//GBSkMSplfnRBYgBov2LFmHHQoGku4=; h=X-UI-Sender-Class:Subject:From:To:Cc:Date:In-Reply-To:References; b=J1M2XBWd/qp+QtPl6PjYhqCnkdaaCbEhURGGnFsG0YQZHbq5tjMRwuLFstY+tkFBg llFJDhx2MWLmlcEIKITVhKLt6OU1cY5Mgot/AoMcZOVWg8aL/d9bOQM5y2opKRyX6P /sBfdxDgoN4+dQkO79jUE50d0thQ6bXgMcANUbyTBPyFUFEDniWCUGGyhfSOcYvGb6 AowlM2GDKxC0xZyHAYtcNhAUeqvPBF+9HX0shNSeCvGF1kUpaxGd5h4g6zOny63agT 2ti/wAEkgMVPUDaUGMLOceUA6Azpws8V7mOXqiRkrFlIpqWHfDT1LAhXDkeEUJ7r1V 7SH4sZ+qgQN5A== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from homer.fritz.box ([212.114.172.145]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N0oFz-1ouNVI3owP-00wi1G; Thu, 22 Dec 2022 14:30:14 +0100 Message-ID: Subject: Re: regression: nfs mount (even idle) eventually hangs server From: Mike Galbraith To: Chuck Lever III , Dai Ngo Cc: LKML , Linux NFS Mailing List Date: Thu, 22 Dec 2022 14:30:13 +0100 In-Reply-To: <36902a3dd6ee1a8656548ff5b5eadb88245e2799.camel@gmx.de> References: <65ed34338c69cb034295f2c9cbe0af684d65d30f.camel@gmx.de> <360f3dcfb6cfbefdbcc42fc84c660995142a8645.camel@gmx.de> <241c118c2fb60df744bbe351387fc29a34ff6ab9.camel@gmx.de> <1A404CDB-95A8-4D04-B76B-91D4F063B489@oracle.com> <36902a3dd6ee1a8656548ff5b5eadb88245e2799.camel@gmx.de> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.42.4 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Provags-ID: V03:K1:xJN9DQxlyPaV3UdeQIbZwtlVGhlF/rQsHlwly0jbgwWHGfo1NNr w/bqp2OoJnhBGI/kH+ryMGTQ9UiW9bPuSRb53PDrwDEoJo2kKoAkZdaIULtID7fzLz8MP09 dMla6By1qsG+0+FAtj54Z+ArHIFDgryzd4oOit+jP5hFPJEPZhAL9Hcm3mUF/jTQWyy5EEw ItI2hZZrZWX8IXV6yfeAA== UI-OutboundReport: notjunk:1;M01:P0:TCvGYhhlAyw=;XHMmMNZHuQMb6HzWGpqHUNCGZmN 31UnhWX7Yf0x9F3vMS7QbAppJNYNluxogKJCc2kVS1pOtm+P3BBDWCC7OeonBfzdPrYTvD16k 7VnUMk9zNv/vf3FDnUUs5t+l9npFwYWIe9vkBXoiH67C8PrX8PkkQ9Ez5hX9yPuKBeyFZJmqp mn/h74sMbib3OwUuy+4YZr3HyA+gXagVFr9QwxFnaM4wn+OB2A3CNE0GGD8zjSoll+iMkEabY R/gDA8yUsEFJdSIPhCjZ/Pu/CWbI8NCDQJzuTCV0IR4esNZTXVDPyDip1gKzgEC5omCqU6mP9 IWdBjQuIiIpGbnMZcn/fyegGFw88iCaPqU8Smfu12VF5z2pstsr5DHnrtkwbyvuBCQ3Ih1DtL 6UMBew17IFna7wVdOxqEyI+MAKAFjviCK4hEIV4SvZcZgO1vLXezdvZKhX5GuYI4LOSr+S46j 6j4q3hnvK4Sfjdqd1VfGYkmP2WNh8kt0e/pkA7BReYifaSGZUUb4pleWYVWUJi2dT7AbM3CNo LZjmUMNcUAIMaNAZUwQwjvrnSff6zduM2i4EkraSOUpSSvcqHcmc81ME7iz3KrW0T8ClbvbXW iwQVNNn//KcwWpteqEosxb/GnQRvUJehbhVUNqYz2NCjurZwz1IpbTnQMkJIPWPvgsrrQsmfV jRt5ZQ78NA1T/nIiPFl46ry+XrBEez1KLQ8ptdqleZ8E6cDY2y5OAEvlWKvyvK+YLpJDNdTtH MmHpzWKWIbNWxMiVa4UgSJ/k9fbSYUWMQv0wQ5395ickTjdPej+5mSpXB0kYXs0B3xmLPHY64 DsuhwTtRyEeDpMUGiUaNdmFt+Npze60xNmnrNozFybjth6W2c9uJolH3gEuLrDhVtMvQ9JcL4 JD650eKoVOVLerEWf+7sC4MhPI3zguplHDxXLQIerpZiVSbPCg/kMYBO8r9KoI1N4MtL8tuG9 +/h+1SOUh0DSCpRG99Fw0k9W+qA= Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Quoting previous mail for context. On Thu, 2022-12-22 at 05:14 +0100, Mike Galbraith wrote: > On Thu, 2022-12-22 at 04:42 +0100, Mike Galbraith wrote: > > On Wed, 2022-12-21 at 10:56 +0100, Mike Galbraith wrote: > > > > 6.1 didn't reproduce either, so it would appear to be a merge wind= ow bug. > > > > Ah, not true, turning evolution loose in nfs mounted home and letting > > it refresh mailboxes while desktop box was kept busy jammed up 6.1.0 i= n > > fairly short order. > > Well crap. That was _not_ virgin 6.1.0 after all, it was 6.1.0 with... > > 44df6f439a17 NFSD: add delegation reaper to react to low memory conditio= n > 3959066b697b NFSD: add support for sending CB_RECALL_ANY > a1049eb47f20 NFSD: refactoring courtesy_client_reaper to a generic low m= emory shrinker > > ...applied from poking about yesterday. I had given up on those as > culprit, and intended to pop them off and rebuild, but they were in > fact in the booted kernel. Oh well, booboo could have a bright side. I let my desktop box play server/space-heater for a long test session of 6.1 with and without the above series: with, box bricked 3 times in ~5 hours, without, 0 bricks in ~6 hours. Box says woof -> duck ;-) Given the similarity you mentioned, I wonder if my bug is perhaps your sneaky bug rendered somewhat less sneaky by that series? One can hope. -Mike