[root@localhost btrfs-progs]# ./btrfs-find-root /dev/mapper/ce
Super think's the tree root is at 27785830400, chunk root 147456
Well block 1109037056 seems great, but generation doesn't match, have=168269, want=168295
Well block 1436610560 seems great, but generation doesn't match, have=168271, want=168295
Well block 1516789760 seems great, but generation doesn't match, have=168272, want=168295
Well block 1730539520 seems great, but generation doesn't match, have=168273, want=168295
Well block 1877491712 seems great, but generation doesn't match, have=168277, want=168295
Well block 2064883712 seems great, but generation doesn't match, have=168278, want=168295
Well block 9715023872 seems great, but generation doesn't match, have=168283, want=168295
Well block 10268372992 seems great, but generation doesn't match, have=168285, want=168295
Well block 10470375424 seems great, but generation doesn't match, have=168287, want=168295
Well block 10512089088 seems great, but generation doesn't match, have=168288, want=168295
Well block 10720202752 seems great, but generation doesn't match, have=168289, want=168295
Well block 27125489664 seems great, but generation doesn't match, have=168290, want=168295
Well block 27145584640 seems great, but generation doesn't match, have=168291, want=168295
Well block 27393687552 seems great, but generation doesn't match, have=168292, want=168295
Well block 27790610432 seems great, but generation doesn't match, have=168299, want=168295
Well block 27817095168 seems great, but generation doesn't match, have=168313, want=168295
Well block 27817586688 seems great, but generation doesn't match, have=168314, want=168295
Well block 125742673920 seems great, but generation doesn't match, have=168173, want=168295
Well block 126460907520 seems great, but generation doesn't match, have=168176, want=168295
Well block 126833016832 seems great, but generation doesn't match, have=168182, want=168295
Well block 126949371904 seems great, but generation doesn't match, have=168183, want=168295
Well block 127775068160 seems great, but generation doesn't match, have=168197, want=168295
Well block 128082210816 seems great, but generation doesn't match, have=168255, want=168295
Well block 128665198592 seems great, but generation doesn't match, have=168168, want=168295
No more metdata to scan, exiting


[root@localhost btrfs-progs]# ./btrfs restore /dev/mapper/ce /home/ce/rescue/
parent transid verify failed on 27785830400 wanted 168295 found 168298
parent transid verify failed on 27785830400 wanted 168295 found 168298
Ignoring transid failure
Couldn't setup extent tree
Couldn't read fs root: -2

[root@localhost btrfs-progs]# ./btrfs restore -t 128665198592  /dev/mapper/ce /home/ce/rescue/
parent transid verify failed on 128665198592 wanted 168295 found 168168
parent transid verify failed on 128665198592 wanted 168295 found 168168
Ignoring transid failure
parent transid verify failed on 128665333760 wanted 168168 found 168260
parent transid verify failed on 128665333760 wanted 168168 found 168260
Ignoring transid failure
leaf parent key incorrect 128665333760
Couldn't setup extent tree
parent transid verify failed on 128665333760 wanted 168168 found 168260
Ignoring transid failure
leaf parent key incorrect 128665333760
Couldn't read fs root: -1


mount with -o recovery:
[  460.397879] btrfs: enabling auto recovery
[  460.397882] btrfs: disk space caching is enabled
[  460.397883] btrfs: has skinny extents
[  460.399808] parent transid verify failed on 27785830400 wanted 168295 found 168298
[  460.399811] btrfs: failed to read tree root on dm-0
[  460.400045] parent transid verify failed on 27785830400 wanted 168295 found 168298
[  460.400048] btrfs: failed to read tree root on dm-0
[  460.400408] parent transid verify failed on 27780313088 wanted 168294 found 168297
[  460.400411] btrfs: failed to read tree root on dm-0
[  460.400798] parent transid verify failed on 27763916800 wanted 168293 found 168299
[  460.400802] btrfs: failed to read tree root on dm-0
[  460.418566] btrfs bad tree block start 8844446699414819576 27357323264
[  460.418577] Failed to read block groups: -5
[  460.421289] btrfs: open_ctree failed