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=-2.9 required=3.0 tests=BAYES_00,FORGED_MUA_MOZILLA, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,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 78508C388F7 for ; Fri, 13 Nov 2020 16:55:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E8B321D1A for ; Fri, 13 Nov 2020 16:55:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726080AbgKMQy7 (ORCPT ); Fri, 13 Nov 2020 11:54:59 -0500 Received: from static.214.254.202.116.clients.your-server.de ([116.202.254.214]:56198 "EHLO ciao.gmane.io" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726303AbgKMQy7 (ORCPT ); Fri, 13 Nov 2020 11:54:59 -0500 Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1kdcLh-00094s-Ob for linux-bcache@vger.kernel.org; Fri, 13 Nov 2020 17:54:57 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: linux-bcache@vger.kernel.org From: Jean-Denis Girard Subject: Re: bcache error -> btrfs unmountable Date: Fri, 13 Nov 2020 06:54:50 -1000 Message-ID: References: <1854634128.20201113145913@pvgoran.name> <1726375278.20201113231911@pvgoran.name> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.0 In-Reply-To: <1726375278.20201113231911@pvgoran.name> Content-Language: fr Precedence: bulk List-ID: X-Mailing-List: linux-bcache@vger.kernel.org Le 13/11/2020 à 06:19, Pavel Goran a écrit : > First, you may want to check if there is any dirty data in the cache, by > executing: > cat /sys/block/bcache0/bcache/state > cat /sys/block/bcache1/bcache/state > > If these return "clean", then you should be good to detach the cache. I get "no cache", not sure why: [jdg@tiare ~]$ cat /sys/block/bcache{0,1}/bcache/state no cache no cache Here are the kernel logs concerning bcache: [jdg@tiare ~]$ dmesg | grep bcache [ 9.217610] bcache: bch_journal_replay() journal replay done, 0 keys in 1 entries, seq 254637130 [ 9.219671] bcache: register_cache() registered cache device nvme0n1p4 [ 9.223512] bcache: register_bdev() registered backing device sdc [ 9.226015] bcache: register_bdev() registered backing device sdb [ 9.312796] BTRFS: device fsid c5b8386b-b81d-4473-9340-7b8a74fc3a3c devid 2 transid 29647859 /dev/bcache1 scanned by systemd-udevd (314) [ 9.314219] BTRFS: device fsid c5b8386b-b81d-4473-9340-7b8a74fc3a3c devid 1 transid 29647859 /dev/bcache0 scanned by systemd-udevd (290) That was after rebooting, and no trying to mount the broken Btrfs RAID1. So, should I detach the cache? Thanks for your assistance Pavel, Best regards, -- Jean-Denis Girard SysNux Systèmes Linux en Polynésie française https://www.sysnux.pf/ Tél: +689 40.50.10.40 / GSM: +689 87.797.527