Hi,
I decided I wanted to try if letting btrfs manipulate those extens would
have fixed my issue. So I launched a full balance followed by a
deduplication followed by another full balance. Then I checked the fs once
again: everything got fixed during the data manipulation.
Anyway btrfs check --repair should be able to fix such things without the
need for such tricks, so I hope it will get fixed one day.
Bests,
Niccolò
Il mercoledì 27 settembre 2017 23:47:04 CEST, Niccolò Belli ha scritto:
Hi,
I was trying to use AMDGPU-PRO's OpenCL stack (with the
mainline 4.12.13 kernel) while it suddently crashed the whole
system, not even magic sysrq keys did work anymore.
With no surprise, at the next reboot I found several btrfs
warnings (see
https://paste.pound-python.org/show/S5zBG2tXZUTLG699saE5/).
Since btrfs scrub didn't find any error I decided to reboot
into a live usb and start a btrfs check (I'm using btrfs-progs
4.13).
It did found lots of errors indeed (see
https://paste.pound-python.org/show/IPxh9sly0EEb0MKPi2dw/).
So I made a full backup with dd and I started a btrfs check
--repair (see
https://paste.pound-python.org/show/c9AlT8ehKKJy6l5xhzXk/).
I also wiped the space cache with --clear-space-cache v1.
A subsequent btrfs check revealed it indeed fixed lots of
errors (see
https://paste.pound-python.org/show/1m2Wodd1q3n0eRlxLpZB/), but
unfortunately i still have the following errors:
unresolved ref dir 7450239 index 2 namelen 6 name 431886
filetype 1 errors 80, filetype mismatch
unresolved ref dir 7450595 index 2 namelen 6 name 431886
filetype 1 errors 80, filetype mismatch
unresolved ref dir 7457122 index 2 namelen 6 name 431886
filetype 1 errors 80, filetype mismatch
I'm already quite satisfied to be honest: two years ago repair
used to eat my data, making things worse.
Anyway, why didn't btrfs-check repair them? Is there anything I
can do to fix them?
Thanks,
Niccolò
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