http://bugzilla.opensuse.org/show_bug.cgi?id=964969
http://bugzilla.opensuse.org/show_bug.cgi?id=964969#c7
--- Comment #7 from Ulrich Windl ---
When trying a "btrfs rescue super-recover ..." from the rescue system, I get:
Superblock bytenr is larger than device size
Usage or syntax errors
Then I see a segfault of btrfs use process.
Likewise "chunk-recover" produces:
read superblock error
recover prepare error
Fail to recover the chunk tree.
Eventually I tries a "zero-log" on the device which succeeded. Unfortunately
even after that I get the same message as in comment 4, and any attempt for
"filesystem balance" just gives "No space left on device".
Next thing I tried was "filesystem defragment" which succeeded, but didn't free
up any space for balance.
As I had some space left on the VG, I resized the 16GB lvol to 18 GB, and then
I could rebalance!
To summarize: BTRFS and it tools have to go back to the drawing board for a
re-design!
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