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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 1BDFAC4361B for ; Wed, 16 Dec 2020 19:29:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BDD9B2063A for ; Wed, 16 Dec 2020 19:28:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388513AbgLPT2y (ORCPT ); Wed, 16 Dec 2020 14:28:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58306 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388512AbgLPT2y (ORCPT ); Wed, 16 Dec 2020 14:28:54 -0500 Received: from ravenhurst.kallisti.us (ravenhurst-smtp-tx.kallisti.us [IPv6:2600:3c03:e000:2e0::5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A7633C0617A6 for ; Wed, 16 Dec 2020 11:28:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kallisti.us ; s=20180707; h=Content-Type:MIME-Version:Message-ID:Subject:To:From:Date: Sender:Reply-To:Cc:Content-Transfer-Encoding:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=xwMhIf473iA4IqjHJBaY7YRdm4q30MuaavaneRIC5CA=; b=aCPuNgLZd6X9SETzxODd6Li1yS XfPl//kQXLHA0Ou86W5EcfBZs+DFTKxr3eRPRVys/l41HnileqVO6WI1THQW4JF9dVclk0WIGItnF USNnESAh3cW5e6xQ1PGM09xOnAvfaBUA8wd6DyH3IuNSMIW8/9b5oXqx4ykWflyFgSGxwOfA4a0t1 zjNF6PfW+7gYb4/stZHgsS2ME009ZwDAb8OJ3ZBKOonWSfehZju8L6Kl3wuTBiMGD0lDOeH4EzX83 AkdZqcxeEnWIr7hiQvhb7s3ynaZ8LzJ28bCH+c3ABwslVMaqLFDgR4AMizhMuYH436stOXYZOlpWP 4HbbPoDw==; Received: from [2606:6000:4500:1400:98d2:dc3e:a6eb:31df] (helo=vanvanmojo.kallisti.us) by ravenhurst.kallisti.us with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kpcT6-0008Lv-Ht for linux-btrfs@vger.kernel.org; Wed, 16 Dec 2020 14:28:12 -0500 Date: Wed, 16 Dec 2020 11:28:08 -0800 From: Ross Vandegrift To: linux-btrfs@vger.kernel.org Subject: csum errors on negative root id? Message-ID: <20201216192808.lodnlgbdxefayn2c@vanvanmojo.kallisti.us> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello, I recently saw these in my dmesg, on 4.19.160: BTRFS warning (device dm-20): csum failed root -9 ino 1303 off 0 csum 0x47abffd5 expected csum 0xd5f0d335 mirror 1 BTRFS warning (device dm-20): csum failed root -9 ino 1303 off 0 csum 0x47abffd5 expected csum 0xd5f0d335 mirror 1 I'm confused by a few things here: - does the negative root id mean something, or is this a bug? - inode 1303 doesn't seem to exist. - This is a standalone drive, is this about a dup metadata block? Details on the fs: $ sudo btrfs fi show /mnt/storage Label: none uuid: 6a2038fb-a9b4-4720-a441-c084610e4295 Total devices 1 FS bytes used 4.66TiB devid 1 size 7.28TiB used 5.72TiB path /dev/mapper/storage $ sudo btrfs fi df /mnt/storage Data, single: total=4.68TiB, used=4.66TiB System, DUP: total=32.00MiB, used=768.00KiB Metadata, DUP: total=536.45GiB, used=4.95GiB GlobalReserve, single: total=512.00MiB, used=0.00B $ sudo btrfs inspect-internal subvolid-resolve -- -9 /mnt/storage ERROR: -9: negative value is invalid. $ sudo btrfs inspect-internal inode-resolve 1303 /mnt/storage ERROR: ino paths ioctl: No such file or directory Please keep me CCed, thanks! Ross