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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 86577C433B4 for ; Thu, 1 Apr 2021 21:52:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2819C610E8 for ; Thu, 1 Apr 2021 21:52:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234047AbhDAVws (ORCPT ); Thu, 1 Apr 2021 17:52:48 -0400 Received: from icebox.esperi.org.uk ([81.187.191.129]:40730 "EHLO mail.esperi.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233974AbhDAVws (ORCPT ); Thu, 1 Apr 2021 17:52:48 -0400 Received: from loom (nix@sidle.srvr.nix [192.168.14.8]) by mail.esperi.org.uk (8.16.1/8.16.1) with ESMTP id 131Lqlqh000324; Thu, 1 Apr 2021 22:52:47 +0100 From: Nix To: "bfields\@fieldses.org" Cc: Trond Myklebust , "linux-nfs\@vger.kernel.org" Subject: Re: steam-associated reproducible hard NFSv4.2 client hang (5.9, 5.10) References: <877dourt7c.fsf@esperi.org.uk> <20210223225701.GD8042@fieldses.org> <20210224020140.GA26848@fieldses.org> <875z16m8oh.fsf@esperi.org.uk> <20210401134442.GB13277@fieldses.org> Emacs: if SIGINT doesn't work, try a tranquilizer. Date: Thu, 01 Apr 2021 22:52:47 +0100 In-Reply-To: <20210401134442.GB13277@fieldses.org> (bfields@fieldses.org's message of "Thu, 1 Apr 2021 09:44:42 -0400") Message-ID: <87eeftlljk.fsf@esperi.org.uk> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-DCC--Metrics: loom 1480; Body=3 Fuz1=3 Fuz2=3 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On 1 Apr 2021, bfields@fieldses.org outgrape: > On Thu, Apr 01, 2021 at 02:33:02PM +0100, Nix wrote: >> [Sorry about the huge delay: your replies got accidentally marked as >> read in a MUA snafu. I'll be getting some more debugging dumps -- and >> seeing if this still happens! -- when I reboot into 5.11 this weekend.] >> >> On 24 Feb 2021, bfields@fieldses.org said: >> >> > On Tue, Feb 23, 2021 at 11:58:51PM +0000, Trond Myklebust wrote: >> >> On Tue, 2021-02-23 at 17:57 -0500, J. Bruce Fields wrote: >> >> > On Sun, Jan 03, 2021 at 02:27:51PM +0000, Nick Alcock wrote: >> >> > > Relevant exports, from /proc/fs/nfs/exports: >> >> > > >> >> > > /       192.168.16.0/24,silk.wkstn.nix(ro,insecure,no_root_squash,s >> >> > > ync,no_wdelay,no_subtree_check,v4root,fsid=0,uuid=0a4a4563:00764033 >> >> > > :8c827c0e:989cf534,sec=390003:390004:390005:1) >> >> > > /home/.loom.srvr.nix    *.srvr.nix,fold.srvr.nix(rw,root_squash,syn >> >> > > c,wdelay,no_subtree_check,uuid=0a4a4563:00764033:8c827c0e:989cf534, >> >> > > sec=1) >> >> >> >> Isn't that trying to export the same filesystem as '/' on the line >> >> above using conflicting export options? >> >> Hmm. I don't actually have a / mount in /etc/exports (and haven't had >> one since I finished building this machine, last year), and looking at >> /proc/fs/nfs/exports on the server now, it's not there. > > Right, but even though you're not exporting /, you're exporting > /home/.loom.srvr.nix, and that's on the same filesystem as /, isn't it? Yes, but I'm *not* exporting /. (I just checked my backups, and no such export existed at the time I sent the original mail, nor was I importing it on the client). This export is prsumably automatically generated, and likely indicates nothing more than that I am exporting from different subtrees off the root (which I am: various subdirectories of /home, /usr, /trees, /.transient, /.nfs, and /pkg are exported).