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=-1.0 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED 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 A7489C43387 for ; Tue, 15 Jan 2019 22:13:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5ED9920866 for ; Tue, 15 Jan 2019 22:13:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=colorremedies-com.20150623.gappssmtp.com header.i=@colorremedies-com.20150623.gappssmtp.com header.b="OWeUinwU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729680AbfAOWNh (ORCPT ); Tue, 15 Jan 2019 17:13:37 -0500 Received: from mail-lj1-f195.google.com ([209.85.208.195]:45957 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727984AbfAOWNh (ORCPT ); Tue, 15 Jan 2019 17:13:37 -0500 Received: by mail-lj1-f195.google.com with SMTP id s5-v6so3692720ljd.12 for ; Tue, 15 Jan 2019 14:13:35 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=colorremedies-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=X3fDFz/0q5mkALqLzQmvjeKSdKvCJ1yKQWMwhU1cDv4=; b=OWeUinwUOSyq6nM28lBmpsy7NxWL1Cboe5TtluJVYdx5p+UAUZBno7zMaVyNVhPLIK sXWxbwaqYrHdYJMI4x6E6aw7QOfK9Lc2PAlOJXPGIcjFf2aYsFfae2c71/VlaZE8oacG sA7dZ2Eh2cnng0r/YtVtTsoDvZguIKNXPFY1IfJ2FwNtRNSa7F7aW2F6L9rnrYlqqSGv jP0joH16H5CXsdREi8sooE9tpuJx5+lKSyqsA6G7U4aTFkbpUtvSTOSIfxxEVl7NtZml jBNsm9aDXLOpwuPzHUukmSKcYOKifChXaHB+5egI0CVufTCna71onEbRZPA/NGalBy2p WYGw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=X3fDFz/0q5mkALqLzQmvjeKSdKvCJ1yKQWMwhU1cDv4=; b=ZVSSsIth6OTZzsfdcGr+9gSXYiPmkFI2nE9HQI5s8FFMdv0KzQ9NqBTt2kz+6llcT9 Kp1UVw1yT66SLsbYKGcubRnM77Gid2rv9qNAKst+eFEKrJndTUfzJ8lghLIT5qcWEBdh FYppgh1aq4MgzKOWr2vhwzCRtjXJFM7tReN/jWK8pn/EMN2PyJI4h22bk0uMJCmxreI2 1FJkNREn7lzBDPrwnfmocImNbRY2et/+az5+duG5I5mB4xx6iJx6803ujou3QSzRWPLg GMEvsDrRErrnxwLmbVx6ov3RbZW09eXzT+KDBYmToeaUt/I2zINPfHXrFOCUNaxpCsD5 D6ag== X-Gm-Message-State: AJcUukf7VX9buZYbecNEF6DHtcUpFpnfyxMZEnRgpBOInNcHPSJA/bU8 Rbj+WU7DElFEx0eB6BjlkX62cRAiCar49NvaiMHz65a17yU= X-Google-Smtp-Source: ALg8bN6EfAPxU1RNmaKBbE2sY+oOW0BdyDCWjybZj4gzrhQXRYqb8sg1hOWjRyBTft0I3BqKfmV0tto/m0+1PrTu9Q4= X-Received: by 2002:a2e:841:: with SMTP id g1-v6mr4547493ljd.21.1547590414852; Tue, 15 Jan 2019 14:13:34 -0800 (PST) MIME-Version: 1.0 References: <6760df5e-a757-56a0-d8c9-3f172458fc65@ch-sc.de> In-Reply-To: <6760df5e-a757-56a0-d8c9-3f172458fc65@ch-sc.de> From: Chris Murphy Date: Tue, 15 Jan 2019 15:13:22 -0700 Message-ID: Subject: Re: issue mounting volume To: Christian Schneider , Btrfs BTRFS , Qu Wenruo Content-Type: text/plain; charset="UTF-8" Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Tue, Jan 15, 2019 at 10:03 AM Christian Schneider wrote: > uname -a > Linux jane 4.19.6-gentoo #1 SMP PREEMPT Sat Dec 15 13:26:24 CET 2018 > x86_64 Intel(R) Core(TM) i7-4785T CPU @ 2.20GHz GenuineIntel GNU/Linux Your problem could be due to a block layer bug that's been discovered. It should be fixed in 4.19.8+ https://lwn.net/Articles/774440/ I'm not sure off hand how to fix the corruption once it's happened; and I'm not even sure if it's a contributing factor to the power failure or not. It is disappointing that btrfs check has no way to iterate or try to infer a correction for a bad leaf, but it's not certain how badly damaged that leaf is yet. You can output it 'btrfs insp dump-t -b 448888832 ' and remove file names before posting it; this might help a dev sort out what the problem is. -- Chris Murphy