# btrfs check --init-extent-tree /dev/...
Checking filesystem on /dev/....
UUID: ......
Creating a new extent tree
Failed to find [419295232, 168, 4096]
btrfs unable to find ref byte nr 419295232 parent 0 root 1  owner 1 offset 0
parent transid verify failed on 321269628928 wanted 3276017 found 3275985
Ignoring transid failure
Failed to find [321269628928, 168, 4096]
btrfs unable to find ref byte nr 321269628928 parent 0 root 1  owner 0 offset 1
Error reading data reloc tree
error resetting the pending balance
ERROR: attempt to start transaction over already running one
extent buffer leak: start 32534528 len 4096
extent buffer leak: start 29392896 len 4096
extent_io.c:607: free_extent_buffer_internal: BUG_ON `eb->flags & EXTENT_DIRTY` triggered, value 1
btrfs(+0x2b882)[0x56440ca1b882]
btrfs(+0x2bbd1)[0x56440ca1bbd1]
btrfs(extent_io_tree_cleanup+0x45)[0x56440ca1c16a]
btrfs(btrfs_cleanup_all_caches+0x5b)[0x56440ca0ea2e]
btrfs(close_ctree_fs_info+0x1a3)[0x56440ca0f186]
btrfs(cmd_check+0x26ea)[0x56440ca482ef]
btrfs(main+0x13d)[0x56440ca08863]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf1)[0x7f165505d2e1]
btrfs(_start+0x2a)[0x56440ca0889a]
Aborted