Comment # 1 on bug 1233698 from Dzmitry Kanunnikau

I have continued with the repair guide:
- 'btrfs rescue super-recover ...': "All supers are valid, no need to recover";
- partition still cannot be mounted or backed up via partclone.btrfs;
- 'btrfs rescue zero-log ...': "Clearing log on ..., previous log_root ...,
level 0";
- partition still cannot be mounted;
- 'btrfs rescue chunk-recover ...':
    Scanning: DONE in dev0
    corrupt node: root=1 block=2004533248, nritems too large, have 15 expect
range [1,0]
    Couldn't read tree root
    open with broken chunk error