Comment # 2 on bug 1199322 from Jon Nelson

turnip:~ # btrfs check  -p  --repair
/dev/disk/by-uuid/ea5898b2-3e9f-4a4b-ae54-5e3e1d13c3ff
enabling repair mode
Opening filesystem to check...
Checking filesystem on /dev/disk/by-uuid/ea5898b2-3e9f-4a4b-ae54-5e3e1d13c3ff
UUID: ea5898b2-3e9f-4a4b-ae54-5e3e1d13c3ff
[1/7] checking root items                      (0:00:56 elapsed, 1166000 items
checked)
Fixed 0 roots.
ref mismatch on [401681596416 16384] extent item 1, found 0psed, 228719 items
checked)
backref 401681596416 root 2 not referenced back 0x565236c6c2c0
incorrect global backref count on 401681596416 found 1 wanted 0
backpointer mismatch on [401681596416 16384]
owner ref check failed [401681596416 16384]
repair deleting extent record: key [401681596416,169,0]
Repaired extent references for 401681596416
ref mismatch on [401685037056 16384] extent item 0, found 1
tree backref 401685037056 parent 2 root 2 not found in extent tree
backpointer mismatch on [401685037056 16384]
adding new tree backref on start 401685037056 len 16384 parent 0 root 2
Repaired extent references for 401685037056
parent transid verify failed on 401685037056 wanted 5333686 found 5333691tems
checked)
Ignoring transid failure
leaf parent key incorrect 401685037056
ctree.c:1147: btrfs_search_slot: Warning: assertion `p->nodes[0] != NULL`
failed, value 1
btrfs(btrfs_search_slot+0xcb)[0x56522d1f79bb]
btrfs(btrfs_write_dirty_block_groups+0x11d)[0x56522d201a7d]
btrfs(commit_tree_roots+0x118)[0x56522d2261b8]
btrfs(btrfs_commit_transaction+0xc6)[0x56522d2264a6]
btrfs(+0x1ea9c)[0x56522d1f2a9c]
btrfs(cmd_check+0x1124)[0x56522d23bdb4]
btrfs(main+0x8e)[0x56522d1f308e]

/lib64/libc.so.6(__libc_start_main+0xef)[0x7f1a60e762bd]
btrfs(_start+0x2a)[0x56522d1f328a]
parent transid verify failed on 401685037056 wanted 5333686 found 5333691
Ignoring transid failure
leaf parent key incorrect 401685037056
btrfs unable to find ref byte nr 3460297064448 parent 0 root 2  owner 0 offset
0
transaction.c:195: btrfs_commit_transaction: BUG_ON `ret` triggered, value -5
btrfs(+0x51f99)[0x56522d225f99]
btrfs(btrfs_commit_transaction+0x1ae)[0x56522d22658e]
btrfs(+0x1ea9c)[0x56522d1f2a9c]
btrfs(cmd_check+0x1124)[0x56522d23bdb4]
btrfs(main+0x8e)[0x56522d1f308e]
/lib64/libc.so.6(__libc_start_main+0xef)[0x7f1a60e762bd]
btrfs(_start+0x2a)[0x56522d1f328a]
Aborted (core dumped)
turnip:~ #