Hi folks,
I have an issue with one of my desktop systems. Besides the usual
information below I have attached output of btrfsck and dmesg. The
system did not crash but was up for about a week.
My questions:
1. And ideas what is wrong?
2. Should I file a bug
3. can I safely repair with --repair or what else do I have to do to repair?
Thank you!
Kind regards
robert
This is a Xubuntu and I am using btrfs on top of lvm on top of LUKS.
$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic
$ uname -a
Linux robunt-01 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28
UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
$ btrfs --version
btrfs-progs v4.15.1
$ sudo btrfs fi show
Label: none uuid: 0da6c6f7-d42e-4096-8690-97daf14d70e7
Total devices 1 FS bytes used 12.64GiB
devid 1 size 30.00GiB used 15.54GiB path
/dev/mapper/main--vg-main--root
Label: 'home' uuid: cfb8c776-0dab-4596-af5b-276f0db46f79
Total devices 1 FS bytes used 50.73GiB
devid 1 size 161.57GiB used 53.07GiB path
/dev/mapper/main--vg-main--home
$ sudo btrfs fi df /
Data, single: total=14.01GiB, used=11.83GiB
System, single: total=32.00MiB, used=16.00KiB
Metadata, single: total=1.50GiB, used=820.30MiB
GlobalReserve, single: total=39.19MiB, used=0.00B
$ sudo btrfsck /dev/mapper/main--vg-main--root Checking filesystem on /dev/mapper/main--vg-main--root UUID: 0da6c6f7-d42e-4096-8690-97daf14d70e7 checking extents data backref 5658767360 root 275 owner 19075 offset 0 num_refs 0 not found in extent tree incorrect local backref count on 5658767360 root 275 owner 19075 offset 0 found 1 wanted 0 back 0x562deceb1250 incorrect local backref count on 5658767360 root 275 owner 19075 offset 131072 found 0 wanted 1 back 0x562deae7d0d0 backref disk bytenr does not match extent record, bytenr=5658767360, ref bytenr=0 backpointer mismatch on [5658767360 12288] ERROR: errors found in extent allocation tree or chunk allocation checking free space cache checking fs roots checking csums checking root refs found 13525364736 bytes used, error(s) found total csum bytes: 10847980 total tree bytes: 825819136 total fs tree bytes: 784613376 total extent tree bytes: 26755072 btree space waste bytes: 166697454 file data blocks allocated: 40856240128 referenced 34213076992
Attachment:
dmesg.txt.gz
Description: GNU Zip compressed data
