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=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 F3D40C43441 for ; Tue, 27 Nov 2018 14:11:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7BD720989 for ; Tue, 27 Nov 2018 14:11:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CQ8XhY/8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B7BD720989 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gelma.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726840AbeK1BJ5 (ORCPT ); Tue, 27 Nov 2018 20:09:57 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:45603 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726733AbeK1BJ5 (ORCPT ); Tue, 27 Nov 2018 20:09:57 -0500 Received: by mail-pf1-f194.google.com with SMTP id g62so8414755pfd.12 for ; Tue, 27 Nov 2018 06:11:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=xAG+R02Q28UTnikCW6sB/0Mv9Ef/dHFGh+hBZ20GSjc=; b=CQ8XhY/8HnfbGOydlfOATotVo0DC3reW+nVkw8IiJ63tYK91HcGvrIAhbjIm6cBzEd d+46viY61sSpO4dx32U4v1tfd9Qq96785m1Xo0Hi1OeUBLxG2xueGOYxw4DJAzTEGzHv 93fcvGyljUcCpZh6YK21mxfhFA45vg/x1eZlnu8rCRf+k9VFrMtrLc3aUCBm20/hEUk+ cTXsWo24lUTFTLhExowvwrBVOoQ33NtISuSVXbGWcf/qhZOBrCnKaGCouX2PFL5xq6Gu RggtbcdsRCfaHbHv6HaH8RZgtQbW0r3jBMDb6TxpFIVRtyRNqUpoDV611VjYizLEjdnn Vv+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=xAG+R02Q28UTnikCW6sB/0Mv9Ef/dHFGh+hBZ20GSjc=; b=M5g1tcOls1eVqDN9H00TvM2vMVwdewWVuHFYocJvoAQIAi3g8khpqMO9FQXLg5S0wA +ZmvY9dGQg+izSogUxJdz2n+yK4rLTaIrn5vsFsQPFq/o0bTeBDK243RbeD7WD1yCW5b NFJaQFSzps75SQHMgpKLf1kotfgLj5NkyGPS9fMostBP0PUtKrFrwhOHS1b7wAFFnkq+ wuaVtR9aY8kMrq1UAu+TgIBbL8LjGUYRmnWKeTXshjwQzGXGwYkcrS9/gAMsEDQnuwp5 Vl2qweSgRLYPMEU3LuluSEKFqFRFtGPSKASSjwdrTd8BgqqfFHEoEHo+bNQ9OZHrQenF G2cQ== X-Gm-Message-State: AA+aEWYfRbpZLqiBVGGJtTlZoR9VjHDlF20Ar3hEuRgqnmQhHv4I8MUi uRbPUKzqmvK90lPXcwrdh/9nn6HZWpI= X-Google-Smtp-Source: AFSGD/Uhvi7PQaz0/DwhuwTuT16H+wFAPMwXaUis1yiHZu+CK3zcQNW/cFyA70+YwtsUM5e2PETj0A== X-Received: by 2002:aa7:8045:: with SMTP id y5mr1073973pfm.62.1543327913901; Tue, 27 Nov 2018 06:11:53 -0800 (PST) Received: from glet ([185.197.228.4]) by smtp.gmail.com with ESMTPSA id d69sm4728225pfg.168.2018.11.27.06.11.50 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 27 Nov 2018 06:11:52 -0800 (PST) Date: Tue, 27 Nov 2018 15:11:44 +0100 From: Andrea Gelmini To: Qu Wenruo Cc: linux-btrfs@vger.kernel.org Subject: Re: Linux-next regression? Message-ID: <20181127141144.GA23269@glet> References: <20181126150137.GA16029@glet> <845890af-0659-fbfa-c445-d6f109bd5015@gmx.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="YiEDa0DAkWCtVeE4" Content-Disposition: inline In-Reply-To: <845890af-0659-fbfa-c445-d6f109bd5015@gmx.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org --YiEDa0DAkWCtVeE4 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Nov 27, 2018 at 09:13:02AM +0800, Qu Wenruo wrote: >=20 >=20 > On 2018/11/26 =E4=B8=8B=E5=8D=8811:01, Andrea Gelmini wrote: > > One question: I can completely trust the ok return status of scrub? I= know is made for this, but shit happens... >=20 > No, scrub only checks csum of data and tree blocks, it doesn't ensure > the content of tree blocks are OK. Hi Qu, and thanks a lot, really. Your answers are always the best: short, detailed and very kind. You rock. I'm going to send a patch to propose to add your explanation above on the relative man page, if you agree. > For comprehensive check, go "btrfs check --readonly". I'll do it. At the moment I just compared the file existance between my laptop and latest backup. Everything is fine. >=20 > However I don't think it's something "btrfs check --readonly" would > report, but some strange behavior, maybe from LVM or cryptsetup. Well, I'm using this setup with ext4 and xfs, on same machine, without troubles. I've got files checksummed on the backup machine, so I can be sure about comparing integrity. Anyway, thanks a lot again, Andrea --YiEDa0DAkWCtVeE4 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQKTBAABCgB9FiEE6kLpNgt13W6DJUf3pDCQdfBZYPYFAlv9UJxfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEVB NDJFOTM2MEI3NURENkU4MzI1NDdGN0E0MzA5MDc1RjA1OTYwRjYACgkQpDCQdfBZ YPbVWhAAsVRii4d9L0cp6TFcqD9HG6IA7dB2Zn442LnzidL4d6tVUZhkE8SjOU7e jKmSP+ebkparohhioR4ZKphqUVXvGH6va6VKHBLt6ZFvUA8z3r+tuwMSx6mdf/Nq 2BOOuDozwAR50J3M+FyxTocd7POw0Oi1AWkSqsUS41PuE3DZcmvNE0rbBhSejNe5 pfXlV77aoaN3OROUBiRvBCvzFoFv++sRqknKgMCQuxtV8V0uxL1LoMG1LXcyD/c0 OygD108Z8q+8K1s6nXfB/w4Sh5kPrM7ILDz7Q8CgQU6PBZVRFnYyzPs5D04H73Bm 85caaIdOKYBvBRocwznNbTbmYOZyAC+wlFsjFpZOl+w6xCglOerxS6CRCWu0Mvsw Al1wYB0rZWNzYkiOrfyqivaYOJgCI4N8p3iQO7NASO6lLbrlVzZxKiX0ihBMPECo KUyDqpz8Nsk0d800MTXaYz6COTfOAktiMVpZuAModbD46ExHAHB5DlTOj2rvn8RL tfyMNAyn6/nIEqQTH+7g99lT42Q1ARvJ9EeQDmYXO6MeqeoGAF1lZz3kaABhhsT5 6aM/LyezeKfE7nAaS+b3PzSd1o4/iZOsAWX8ZZMe7k0uBPimmXeJvxH7DwRm1XEE StbKFaMQSyE2PEmAnwinfpHBfWaJLCzMjCIY9PoKamMKM3v4/50= =AiA0 -----END PGP SIGNATURE----- --YiEDa0DAkWCtVeE4--