Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp944149yba; Thu, 16 May 2019 11:24:45 -0700 (PDT) X-Google-Smtp-Source: APXvYqzLJhAoq8s4jMCUVVh6bUqgRfkPpQxqkWG/Y4U6yeU1xLG8vtaNHtBnRANNVDraj8/Yi8VH X-Received: by 2002:a63:2d6:: with SMTP id 205mr51556317pgc.114.1558031085035; Thu, 16 May 2019 11:24:45 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558031085; cv=none; d=google.com; s=arc-20160816; b=MK0lWs9KQHBgreLmxOQCKv3BV9t3WIuqV/tAtDprlqn+UvAkHu1L4iNjVOXsn6g9f9 C9PyKE2jTrOsFndesmyYzWfMDRHX5n6irks3RimdMngSltjEx5vdbSWB6InlmiHP1smX rNyqsydDgVzVD624Ale/n1uakK9RygqSVm1/V2IwT1e4bwXUFPFQlgeZr6al6VyN5NAr mQYxXXIAxsyjwKTVHaQKz0ce2kAA8zCBhzvmmyYjrwxUEYaQteYHsJ/PZoIj1TES7crD JRGxwXVu40TnxhUQWGe0pQnLJqHbj+nhb0ixf0eJVFqfgyCQ/x1r0kTEpYBQ7L4MqZgf BJBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=8Z5UwcIbib1LpDzNVaafeYrs/0rwaNTq3U2ULHVxCAs=; b=CppLsRrjIpnImhMX6Ju3jdQHpSr4+6iWUCD9YnJaPVxXzC8uEbg3kyRxRVNhO5aCna qI3ao1AMB1VBlCzkxrEENrO3Rs/nEnYF6CilshBsGIFGkCjGNKqi4P8Un/h0vEE106ds XDt6qj3+dmCEdcTiQFfsXCyQZgyJfUM8UBnMq1/wV28HKMD5rIJRSfLFmmY6Nbv2Yzrt JpxhqP4C6vM4RtnWOQFqnPJChaP5yP1OBmQooJLw/H5lSIeWfq/0m9BReC4mpwBTYnj9 vE6EoRPN8CrX2HwVD+JPFlni8oIdl5PU4hCdvx19Gq6ZkX9j+GEr8mRcPIf4Rr1rKHAF xteQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id d2si5800475pgi.579.2019.05.16.11.24.19; Thu, 16 May 2019 11:24:45 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-ext4-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727312AbfEPQ77 (ORCPT + 99 others); Thu, 16 May 2019 12:59:59 -0400 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:46828 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726449AbfEPQ77 (ORCPT ); Thu, 16 May 2019 12:59:59 -0400 Received: from callcc.thunk.org (168-215-239-3.static.ctl.one [168.215.239.3] (may be forged)) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id x4GGxMQ2021387 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 16 May 2019 12:59:25 -0400 Received: by callcc.thunk.org (Postfix, from userid 15806) id 74866420024; Thu, 16 May 2019 12:59:21 -0400 (EDT) Date: Thu, 16 May 2019 12:59:21 -0400 From: "Theodore Ts'o" To: Filipe Manana Cc: fstests , linux-btrfs , linux-ext4 , Jan Kara , Filipe Manana Subject: Re: [PATCH] fstests: generic, fsync fuzz tester with fsstress Message-ID: <20190516165921.GA4023@mit.edu> References: <20190515150221.16647-1-fdmanana@kernel.org> <20190516092848.GA6975@mit.edu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-ext4-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Thu, May 16, 2019 at 10:54:57AM +0100, Filipe Manana wrote: > > Haven't tried ext4 with 1 process only (instead of 4), but I can try > to see if it happens without concurrency as well. How many CPU's and how much memory were you using? And I assume this was using KVM/QEMU? How was it configured? Thanks, - Ted