First , I am just a regular btrfs user so take what I say with a grain
of salt.
However, according to the FAQ here:
https://btrfs.wiki.kernel.org/index.php/FAQ
You should run btrfs check on your filfeystem. This may be a brilliant
or horrific idea. You probably want to drop your free space cache file
as well ,but wait until a developer answers if you wanna be on the safe
side.
If you expect some serious help you should probably post the outputs of
these commands and state just for the record what distro you are using
and I am sure you will get help soon (the BTRFS list is very friendly).
uname -a
btrfs --version
btrfs filesystem show /mountpoint
btrfs filesystem usage -T /mountpoint
Hendrik Friedel wrote:
Hello,
I see these errors in my syslog:
Mar 15 00:16:31 homeserver kernel: [524589.677551] BTRFS info (device
sdf1): the free space cache file (12785106812928) is invalid, skip it
Mar 15 00:16:32 homeserver kernel: [524590.494705] BTRFS info (device
sdf1): the free space cache file (12787254296576) is invalid, skip it
Mar 15 00:16:53 homeserver kernel: [524611.371823] BTRFS info (device
sdf1): the free space cache file (14405383225344) is invalid, skip it
Mar 15 00:18:18 homeserver kernel: [524696.803108] BTRFS info (device
sdf1): the free space cache file (15598377500672) is invalid, skip it
Mar 15 00:18:18 homeserver kernel: [524696.935340] BTRFS info (device
sdf1): the free space cache file (15613409886208) is invalid, skip it
Mar 15 00:18:19 homeserver kernel: [524698.074946] BTRFS info (device
sdf1): the free space cache file (15643474657280) is invalid, skip it
Mar 15 00:18:19 homeserver kernel: [524698.074952] BTRFS info (device
sdf1): the free space cache file (15643474657280) is invalid, skip it
Mar 15 00:18:21 homeserver kernel: [524699.353843] BTRFS info (device
sdf1): the free space cache file (15663875751936) is invalid, skip it
Mar 15 00:19:37 homeserver kernel: [524776.142963] BTRFS info (device
sdf1): the free space cache file (15062513221632) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524776.307788] BTRFS info (device
sdf1): the free space cache file (15065734447104) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524776.549028] BTRFS info (device
sdf1): the free space cache file (15070029414400) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524776.675084] BTRFS info (device
sdf1): the free space cache file (15071103156224) is invalid, skip it
Mar 15 00:19:38 homeserver kernel: [524777.004195] BTRFS info (device
sdf1): the free space cache file (15076471865344) is invalid, skip it
Mar 15 00:19:50 homeserver kernel: [524788.446974] BTRFS info (device
sdf1): the free space cache file (15559722795008) is invalid, skip it
Mar 15 00:19:51 homeserver kernel: [524789.965874] BTRFS info (device
sdf1): the free space cache file (15570460213248) is invalid, skip it
Mar 15 00:21:59 homeserver kernel: [524918.102725] BTRFS info (device
sdf1): the free space cache file (15064660705280) is invalid, skip it
Mar 15 00:25:49 homeserver kernel: [525147.576735] BTRFS info (device
sdf1): the free space cache file (15564017762304) is invalid, skip it
Mar 15 00:27:33 homeserver kernel: [525251.725178] BTRFS info (device
sdf1): the free space cache file (16411300724736) is invalid, skip it
a scrub of that drive was finde.
Also, the stats look good:
btrfs dev stats /srv/dev-disk-by-label-DataPool1
[/dev/sdf1].write_io_errs 0
[/dev/sdf1].read_io_errs 0
[/dev/sdf1].flush_io_errs 0
[/dev/sdf1].corruption_errs 0
[/dev/sdf1].generation_errs 0
[/dev/sdc1].write_io_errs 0
[/dev/sdc1].read_io_errs 0
[/dev/sdc1].flush_io_errs 0
[/dev/sdc1].corruption_errs 0
[/dev/sdc1].generation_errs 0
Is this concerning?
What should I do?
Regards,
Hendrik
