linux-kernel - New to the list. Having an issue with BTRFS after a power outage.

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Date:   Fri, 7 Oct 2022 17:10:08 +0000
From:   Eddie S <sparcst@...mail.com>
To:     "linux-btrfs@...r.kernel.org" <linux-btrfs@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: New to the list.  Having an issue with BTRFS after a power outage.

Hi,

I'm new to the list.  I'm hoping someone with much more knowledge than me can help.

After a power outage I started getting several errors in the system trace.  This results in I/O errors when trying to access certain files.

The data drives (including sdb1) are physically located in a USB enclosure (I know this is a problem and I'm looking into changing this).

I've included the details as described on the wiki below.  Attached are a summary of dmesg and the results of running btrfs check.


------------------------------------------------------------------------------------- 
uname -a
-------------------------------------------------------------------------------------
Linux Thoren 5.10.0-0.bpo.8-amd64 #1 SMP Debian 5.10.46-4~bpo10+1 (2021-08-07) x86_64 GNU/Linux

-------------------------------------------------------------------------------------
btrfs --version
-------------------------------------------------------------------------------------
btrfs-progs v4.20.1

-------------------------------------------------------------------------------------
btrfs fi show
-------------------------------------------------------------------------------------
Label: 'SR3'  uuid: 23be2265-8c0c-4853-8c46-aec6a27e17ef
        Total devices 1 FS bytes used 6.01TiB
        devid    1 size 9.09TiB used 6.03TiB path /dev/sdd1

Label: 'SR2'  uuid: 9b9b973b-b76e-4108-8f33-7f14994de371
        Total devices 1 FS bytes used 6.02TiB
        devid    1 size 9.09TiB used 6.03TiB path /dev/sdc1

Label: 'SR5'  uuid: a6be9247-3a7c-405c-bae9-07d87d8a59f9
        Total devices 1 FS bytes used 6.03TiB
        devid    1 size 9.09TiB used 6.04TiB path /dev/sdf1

Label: 'SR1'  uuid: 26228591-e584-49af-bef8-a3b8340500ba
        Total devices 1 FS bytes used 6.02TiB
        devid    1 size 9.09TiB used 6.03TiB path /dev/sdb1

Label: 'SR4'  uuid: c5557d54-c24e-40c8-8483-0f86100d86f6
        Total devices 1 FS bytes used 1.07TiB
        devid    1 size 9.09TiB used 1.08TiB path /dev/sde1


-------------------------------------------------------------------------------------
btrfs fi df /srv/dev-disk-by-id-usb-JMicron_Generic_DISK03_ZA205NG6-0-3-part1/
-------------------------------------------------------------------------------------
Data, single: total=6.02TiB, used=6.01TiB
System, DUP: total=8.00MiB, used=672.00KiB
Metadata, DUP: total=7.00GiB, used=6.67GiB
GlobalReserve, single: total=512.00MiB, used=0.00B


Thanks
Eddie
View attachment "btrfs check.txt" of type "text/plain" (27016 bytes)

View attachment "dmesg-reduced.txt" of type "text/plain" (50297 bytes)