Received: by 2002:a05:6a10:9afc:0:0:0:0 with SMTP id t28csp422298pxm; Tue, 22 Feb 2022 13:53:48 -0800 (PST) X-Google-Smtp-Source: ABdhPJxWFZLHB44/4zA1y/Ld+bCFIG2frEBmSO894xOvBNHYwzcvTrVLpuZiHgbG9YxKCyFCfT6X X-Received: by 2002:a05:6402:2922:b0:40f:7241:74d4 with SMTP id ee34-20020a056402292200b0040f724174d4mr28928254edb.43.1645566828159; Tue, 22 Feb 2022 13:53:48 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1645566828; cv=none; d=google.com; s=arc-20160816; b=C/x8EdoeN9Y9V81LSVnVub+xTgHmBGfX257nzISU84aeIVHtXtrHIYu2DHwXutxQaZ 6LpMabN3zBCr5oFKb6FOoeHxDa1uew4gKyQSDA0xCfBCCYW6ghbySWV+zIlJqZLmS7bu paURSYOziAh99R8onEavcxHqOXYQjG6J9Ou7ywfugh0otrDKmiyCGmv1OI+ayFIJ/ERG fx0nJQD3g/ptjY/k08vCqrBKkxZ8BPirQOhrNm5y1F5TBFLp1b1VmDX9M4tZF0hhfftt A6S0b2qYAEBSy6Zd3MKU2nQ2mb5gbJli0vr6eGKH24mlFXC5vMagk/HqVJKuxKetxiKX Ucbw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :dkim-signature:dkim-filter; bh=24F60Mxq8bXyajAUTkbo/8nEXGynyHkKsBt7JoeyAw0=; b=JarQXDUVUuzrV6LfIB76X6MLkEv0M7bm1vZzb7hSb/YGExp4wYaIA8Qb94+BP6G8tr JRccpdzKBXqNWhbjAgw41ZhVZ3Jiq2bTMZRqCRCxL7oAOp5mV9xACymDnuCjWGW6m08F y8b0DzaE7rf95ODaDR+Lhl+9fD+RAHRNmhC9ghAUtwv6KnoiHzKgpNc9cbtLWWDMLSkS ihDHzaAXe1bzUZ3ELzrhaR+psM9fRwxrUbOSoOox/eJ7Uv69ip38ZUUiUTdTzokDTRcB s+Hxs1EPo3L9UQPRcLbJfxGyZElIxFaaOoZU+oJrXDMwQ3H9r4OwZ69K5SyG1ZgC0cD0 iKKQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@fieldses.org header.s=default header.b=gxBaRuo2; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id nd3si13007645ejc.431.2022.02.22.13.52.56; Tue, 22 Feb 2022 13:53:48 -0800 (PST) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@fieldses.org header.s=default header.b=gxBaRuo2; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235244AbiBVVMN (ORCPT + 99 others); Tue, 22 Feb 2022 16:12:13 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58218 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231310AbiBVVMM (ORCPT ); Tue, 22 Feb 2022 16:12:12 -0500 Received: from fieldses.org (fieldses.org [IPv6:2600:3c00:e000:2f7::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD796E3899; Tue, 22 Feb 2022 13:11:45 -0800 (PST) Received: by fieldses.org (Postfix, from userid 2815) id C8850367; Tue, 22 Feb 2022 16:11:44 -0500 (EST) DKIM-Filter: OpenDKIM Filter v2.11.0 fieldses.org C8850367 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fieldses.org; s=default; t=1645564304; bh=24F60Mxq8bXyajAUTkbo/8nEXGynyHkKsBt7JoeyAw0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gxBaRuo2oaZcl2t8Xiwot3W3tBTJDE4smNfbE/5LOOPl9d7iA7x5gk4nKWjwqKVpH Xp+VFbDYLJyWXLNNtAmM7LKGYlsBc5hMhla+i5LAhXUtfwFRjXiivDkg3bGbBA31W/ lTEzV4YIn6bJVEZDvpDNDG5Q8WHFhGdxPkkULW7g= Date: Tue, 22 Feb 2022 16:11:44 -0500 From: "J. Bruce Fields" To: NeilBrown Cc: Al Viro , Linux NFS Mailing List , linux-fsdevel@vger.kernel.org, LKML , Daire Byrne , Andreas Dilger Subject: Re: [PATCH/RFC] VFS: support parallel updates in the one directory. Message-ID: <20220222211144.GA9541@fieldses.org> References: <164549669043.5153.2021348013072574365@noble.neil.brown.name> <20220222190751.GA7766@fieldses.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220222190751.GA7766@fieldses.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_PASS,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org On Tue, Feb 22, 2022 at 02:07:51PM -0500, bfields wrote: > For what it's worth, I applied this to recent upstream (038101e6b2cd) > and fed it through my usual scripts--tests all passed, but I did see > this lockdep warning. > > I'm not actually sure what was running at the time--probably just cthon. Yeah, reproduceable just by running "cthon -b -f" over an NFS mount. --b.