Dear all,
the forwarded mail below came back yesterday with the error
"Diagnostic-Code: X-Postfix; TLS is required, but was not offered by
host vger.kernel.org[23.128.96.18]".
Is it really intended that your mail server does not offer TLS?
Kind regards,
Nik.
--
15.12.2020 18:40, Nik.:
Dear all,
after almost a year without problems I need again your advice about
the same computer, but this time it is (hopefully only) the root FS
that failed. I have backups of everything except a couple of files in
/etc, so nothing critical, but probably it would be interesting for
somebody to see how behaved btrfs in such a situation.
The story in short:
- the FS switched to ro mode. Initially I thought that it is due to
insufficient free space (have already had similar situations) and
deleted some old snapshots. Within half a day it happened 3 more
times, though.
- so I booted in memtest86 and it gave me a lot of errors! This NAS is
9 years old and I was already looking for replacement, but it is not
easy to find 8-bay NAS for 2,5" drives...
- took the drive out from the failed system and tried to mount it on
another (healthy?) PC. I am getting:
root@ubrun:~# mount -t btrfs -o subvol=@ /dev/sdb1 /mnt/sd
mount: /mnt/sd: wrong fs type, bad option, bad superblock on
/dev/sdb1, missing codepage or helper program, or other error.
root@ubrun:~# dmesg |tail
[ 50.672561] Policy zone: Normal
[ 185.190764] BTRFS info (device sdb1): disk space caching is enabled
[ 185.190767] BTRFS info (device sdb1): has skinny extents
[ 185.199331] BTRFS info (device sdb1): bdev /dev/sdb1 errs: wr 0, rd
0, flush 0, corrupt 65, gen 0
[ 185.246051] BTRFS critical (device sdb1): corrupt leaf:
block=50850988032 slot=79 extent bytenr=50496929792 len=16384 unknown
inline ref type: 54
[ 185.246055] BTRFS error (device sdb1): block=50850988032 read time
tree block corruption detected
[ 185.247070] BTRFS critical (device sdb1): corrupt leaf:
block=50850988032 slot=79 extent bytenr=50496929792 len=16384 unknown
inline ref type: 54
[ 185.247073] BTRFS error (device sdb1): block=50850988032 read time
tree block corruption detected
[ 185.247093] BTRFS error (device sdb1): failed to read block groups: -5
[ 185.281382] BTRFS error (device sdb1): open_ctree failed
root@ubrun:~#
How should one proceed?
Kind regards
Nik.
