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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 267FDC0650F for ; Tue, 30 Jul 2019 13:57:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EA43E206E0 for ; Tue, 30 Jul 2019 13:57:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbfG3N5a (ORCPT ); Tue, 30 Jul 2019 09:57:30 -0400 Received: from relay6-d.mail.gandi.net ([217.70.183.198]:49693 "EHLO relay6-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725871AbfG3N5a (ORCPT ); Tue, 30 Jul 2019 09:57:30 -0400 X-Originating-IP: 37.165.108.244 Received: from [192.168.43.209] (unknown [37.165.108.244]) (Authenticated sender: swami@petaramesh.org) by relay6-d.mail.gandi.net (Postfix) with ESMTPSA id 547A3C000A; Tue, 30 Jul 2019 13:57:27 +0000 (UTC) Subject: Re: [BUG] BTRFS critical corrupt leaf - bisected to 496245cac57e To: Qu Wenruo Cc: linux-btrfs@vger.kernel.org References: <5a89e922-00af-51a9-390f-b0a6b1f6cfb6@web.de> <4776e0bd-83c2-44a1-4403-3a155fe3f6c7@gmx.com> <508c6378-522a-ae24-6c33-83c8efc64ae5@petaramesh.org> <83294063-9f98-71ab-428b-e2251b96e5b9@gmx.com> From: =?UTF-8?Q?Sw=c3=a2mi_Petaramesh?= Openpgp: preference=signencrypt Organization: Secte des Adorateurs de Cela Message-ID: Date: Tue, 30 Jul 2019 15:57:26 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: <83294063-9f98-71ab-428b-e2251b96e5b9@gmx.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Content-Language: en-GB-large Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello, Le 30/07/2019 à 09:21, Qu Wenruo a écrit : > Unfortunately, transid error here helps nothing. Now, each and everytime I try to mount this disk on the original machine, or another one, I get : systemd[1]: run-media-xxxxxxxxxxxxxxxx.mount: Succeeded. kernel: BTRFS info (device dm-2): disk space caching is enabled kernel: BTRFS info (device dm-2): has skinny extents kernel: BTRFS error (device dm-2): parent transid verify failed on 2137144377344 wanted 7684 found 7499 kernel: BTRFS error (device dm-2): parent transid verify failed on 2137144377344 wanted 7684 found 7499 kernel: BTRFS error (device dm-2): parent transid verify failed on 2137144377344 wanted 7684 found 7499 kernel: BTRFS: error (device dm-2) in btrfs_drop_snapshot:9465: errno=-5 IO failure kernel: BTRFS info (device dm-2): forced readonly (It first appears to mount OK, then the errors follow a few seconds afterwards, and the it remounts readonly). The "7499" displays seems to correspond to the most recent snapshot created on the disk (using btrfs su li). Is there any way I could repair this several-TB FS, ever if it implies losing the latest (or a few of the latest) created subvols and snapshots ? TIA. Kind regards.