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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 63095C433E0 for ; Sat, 23 May 2020 23:28:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3A01320735 for ; Sat, 23 May 2020 23:28:01 +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="L4LjoX/6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388122AbgEWX2A (ORCPT ); Sat, 23 May 2020 19:28:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388010AbgEWX17 (ORCPT ); Sat, 23 May 2020 19:27:59 -0400 Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81502C061A0E for ; Sat, 23 May 2020 16:27:59 -0700 (PDT) Received: by mail-wr1-x441.google.com with SMTP id c3so9578939wru.12 for ; Sat, 23 May 2020 16:27:59 -0700 (PDT) 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 :cc; bh=L5BJFefnoM9qaF31uJMNY/NaA4gXihdlifYkpP5dew4=; b=L4LjoX/6r6/+LhWau93m21fi/jwKX7fEHtfzSwwJlxTi3OGvcYX/haItfAaGA+pbC1 3fGpmPgslwox4EdJRh8l5gQnLmoJVcuxwiflU2xadXgSm5ueDhnSnMFi/NfxyGkEskg4 ssTuyPs3zO79FEG37RPzmca6rHCDY5SKFAnXH04+sKVLySauR7OnhmTyY+v6T6A6Dc4n jTzd2qZSPnZbQohYgxebCOFDli3iQ03V+atNiJbTsP7LUNVziNHV5jUpcUbOBTJd2L4G lC+MSBjOojny9GLsGh3+9rqSl0w9VnWa3lCxVgm/Dj0y57mVI72PIu0IXmMDj88VlQr2 iodQ== 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:cc; bh=L5BJFefnoM9qaF31uJMNY/NaA4gXihdlifYkpP5dew4=; b=NT5axGGEprq4okjYBeJRUlxKJrY+nu5hupz3bU/TG2bCvy2nLnDfdAMCaVt/N1BHrZ 9IG67onvnnj5Mi77gO1g5w2hI5FRk+YT9ZM+z5sq/3h/2p0/JV4YsJD9EXzZ7bLg9wPx J/cAJBp9itpDPy7wl2zEYW/Yb1krZKb/hdlFybVMpc2xwICf/o3xHuZS46nHdJTTY/lp nQHfBaFlG0d181zx3PPJxSYS8lBOtHzgApjZQ+XTvPiHKO21uVqw5J9OH3Wewj2sTNFL J5p04572ABFY0JBrcPB35y41EZnO/PbAmzqggWglNVo7vjLbj393yTMmXY9CSsv1o3r6 pwMQ== X-Gm-Message-State: AOAM530sppNU/dJLj63OjplppDUARvnN4uBqOeQ7U1LQoi+/7tftYu3e VRX+ug+8ryVGcy+VKbYjyejTNsreTNX70yEXW8/vrlM67UlPIQ== X-Google-Smtp-Source: ABdhPJxQbRH6Gu9FlL+SSo9EF1HhkPMoFDRekRqBVKrg7Ej8WHeiagXttY7Dw/i8pCv2HJHa6apFe9b4o8flyxX+poI= X-Received: by 2002:a5d:5092:: with SMTP id a18mr8806364wrt.42.1590276478332; Sat, 23 May 2020 16:27:58 -0700 (PDT) MIME-Version: 1.0 References: <1e6bc0e299901f90613550570446777fbccdc21e.camel@seznam.cz> <139f40a70cf37da2fef682c5c3d660671d8af88d.camel@seznam.cz> <3bc39223e567b7a4eca13bc554c74ef0c36fbaf2.camel@seznam.cz> In-Reply-To: <3bc39223e567b7a4eca13bc554c74ef0c36fbaf2.camel@seznam.cz> From: Chris Murphy Date: Sat, 23 May 2020 17:27:42 -0600 Message-ID: Subject: Re: I can't mount image To: =?UTF-8?B?SmnFmcOtIExpc2lja8O9?= Cc: Chris Murphy , Btrfs BTRFS 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 By the way, if you want to try repairs, I know that you're using an image on loop. But it could still save you time to set up an overlay to avoid modifying the image until you've found a combination that works - if possible. https://raid.wiki.kernel.org/index.php/Recovering_a_failed_software_RAID#Making_the_harddisks_read-only_using_an_overlay_file This strikes me as extent tree corruption so I'd start with --init-extent-tree, and follow that up without options (implies --readonly). There is no bigger hammer, so it's worth a shot but only because you're working on a copy of the fs. There's a chance it makes things worse. -- Chris Murphy