Hi Qu,
Thanks for the quick reply. This is what I could find. 

[michael@linux /]$ sudo btrfs ins dump-tree -t data_reloc /dev/dm-1
btrfs-progs v5.4 
data reloc tree key (DATA_RELOC_TREE ROOT_ITEM 2) 
leaf 286941609984 items 2 free space 16061 generation 1186381 owner 
DATA_RELOC_TREE
leaf 286941609984 flags 0x1(WRITTEN) backref revision 1
fs uuid <redacted>
chunk uuid <redacted>
        item 0 key (256 INODE_ITEM 0) itemoff 16123 itemsize 160
                generation 2 transid 0 size 0 nbytes 16384
                block group 0 mode 40755 links 1 uid 0 gid 0 rdev 0
                sequence 0 flags 0x0(none)
                atime 1577186710.0 (2019-12-24 03:25:10)
                ctime 1577186710.0 (2019-12-24 03:25:10)
                mtime 1577186710.0 (2019-12-24 03:25:10)
                otime 1577186710.0 (2019-12-24 03:25:10)
        item 1 key (256 INODE_REF 256) itemoff 16111 itemsize 12
                index 0 namelen 2 name: ..
total bytes 255307284480
bytes used 94295339008
uuid <redacted>

[michael@archlinux /]$ sudo btrfs ins logical-resolve 253563502592 /
//home/michael/.mozilla/firefox/default/storage/default/https++
+www.pinterest.com/cache/morgue/16/{b696bf53-d26a-48eb-9688-
ab3c5fd49010}.final



``` BTRFS SCRUB ```
sudo btrfs scrub status /
UUID:             <redacted>
Scrub started:    Sat Dec 28 03:17:49 2019
Status:           finished
Duration:         0:05:09
Total to scrub:   87.82GiB
Rate:             291.04MiB/s
Error summary:    csum=16
  Corrected:      0
  Uncorrectable:  16
  Unverified:     0
```