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[209.132.180.67]) by mx.google.com with ESMTP id l194si8339493pga.594.2018.12.01.08.09.39; Sat, 01 Dec 2018 08:09:53 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=lEFY28lc; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727139AbeLBDAr (ORCPT + 99 others); Sat, 1 Dec 2018 22:00:47 -0500 Received: from mail-wm1-f67.google.com ([209.85.128.67]:35211 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726717AbeLBDAr (ORCPT ); Sat, 1 Dec 2018 22:00:47 -0500 Received: by mail-wm1-f67.google.com with SMTP id c126so1729322wmh.0 for ; Sat, 01 Dec 2018 07:47:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:reply-to:from:date:message-id:subject:to; bh=7VsEOr6WXo8MtKSe6YFHkh0W0DTd5dOlnHo+96RQq1c=; b=lEFY28lc8hxycIhp3OrDbCQuvpSF23vSZzbYVLs2G6G6jngyKztDY9lCIjvutZUffp 8g3Dt3/H+dWYDgWrDApFjv+jcfqqZtWJOsb99uLMrzgaU7E1N+yoQ/fjdwxLut63ggrC XT5NCV8VA7Vh8NEYqrOjE4mY2Aci/9pVWL1BctIVNh3okmiMQMlLbXcEIaKvV26mbIRF 3PuJlWosIT+Re5cqoqsDRRYZVbcIJLbfArjsopXM3HgEI3zupnad1SdFp5UqYxcsLBIZ oD1pmT7jljeyxXTX8qxw4TmmlWWj/nGS58+RI4TOu6b0WgWkHqkC50IRd5xwq1cAV+Wz ZCRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:reply-to:from:date:message-id :subject:to; bh=7VsEOr6WXo8MtKSe6YFHkh0W0DTd5dOlnHo+96RQq1c=; b=KTnZ2XTd6fkbEjmWrh1omzPq14pXbAn99nez2ARMsItFi0QiysPszYpCvnO9Y1kbFE 2e5FB4L3eTtXzlfOThlmLfI68G7R7/HXUAXq8N3QF63T5qdVCPsCiqZOA4CVzooCqXUI SEz7DykDFew/1DceBqH5iWKgEgqreFu9h/vGMfNe/KQtUEwCJ5zkKRNnMvKGJ/pTpyFg r16DbmXjh+mDxrvUbdiKb5OesupNXnwGus3SyivEQB+xcJ9qgBerqxp1Pgm8Y7/pUf4O dRqmqnzBaFXLlNFjUDmm9Y5QsXYa9gxqOI6kTCXZrsOMCDFJsd9bbh1YQfLRUEhYk0k6 H1fA== X-Gm-Message-State: AA+aEWb2IJ/GIqwjDvhFbWIQTJYIj3lYmVGEuXJGYPtbCCUOcH3X7N8O cObLMOPW+oJ8k7OsP8fJm9dYk5+x6JWELCU12vTjSgpI X-Received: by 2002:a1c:3e84:: with SMTP id l126-v6mr2517745wma.57.1543679277683; Sat, 01 Dec 2018 07:47:57 -0800 (PST) MIME-Version: 1.0 Reply-To: huangyan1987@gmail.com From: Huang Yan Date: Sat, 1 Dec 2018 16:47:20 +0100 Message-ID: Subject: Re: ext4 file system corruption with v4.19.3 / v4.19.4 To: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 27 Nov 2018 23:15:55 -0500, Theodore Y. Ts'o wrote: > I'm trying to figure out common factors from those people who are > reporting problems. Hello, I experienced the ext4-randomly-switching-to-read-only issue with Linux kernel 4.19.5 (from http://kernel.ubuntu.com/~kernel-ppa/mainline/ ; also with the previous minor versions) on Ubuntu 18.04 - on two laptops (SATA HDD & SATA SSD). I noticed that the only thing I've changed from the default Ubuntu configuration was enabling *write cache* for the disk with the ext4 root partition. Perhaps this information will help. Best regards, Yan Huang (Johnny)