Another BUG_ON() during fuzz/003:
------
====== RUN MAYFAIL /home/adam/btrfs/btrfs-progs/btrfs check --init-csum-tree 
/home/adam/btrfs/btrfs-progs/tests//fuzz-tests/images/bko-161821.raw.restored
[1/7] checking root items
Fixed 0 roots.
[2/7] checking extents
parent transid verify failed on 4198400 wanted 14 found 1114126
parent transid verify failed on 4198400 wanted 14 found 1114126
Ignoring transid failure
owner ref check failed [4198400 4096]
repair deleting extent record: key [4198400,169,0]
adding new tree backref on start 4198400 len 4096 parent 0 root 5
Repaired extent references for 4198400
ref mismatch on [4222976 4096] extent item 1, found 0
backref 4222976 root 7 not referenced back 0x55e9cc694780
incorrect global backref count on 4222976 found 1 wanted 0
backpointer mismatch on [4222976 4096]
owner ref check failed [4222976 4096]
repair deleting extent record: key [4222976,169,0]
Repaired extent references for 4222976
[3/7] checking free space cache
[4/7] checking fs roots
parent transid verify failed on 4198400 wanted 14 found 1114126
Ignoring transid failure
Wrong generation of child node/leaf, wanted: 1114126, have: 14
root 5 missing its root dir, recreating
parent transid verify failed on 4198400 wanted 14 found 1114126
Ignoring transid failure
ERROR: child eb corrupted: parent bytenr=4222976 item=0 parent level=1 child 
level=2
check/main.c:2738: check_inode_recs: BUG_ON `ret` triggered, value -5
failed (ignored, ret=134): /home/adam/btrfs/btrfs-progs/btrfs check 
--init-csum-tree 
/home/adam/btrfs/btrfs-progs/tests//fuzz-tests/images/bko-161821.raw.restored
mayfail: returned code 134 (SIGABRT), not ignored
test failed for case 003-multi-check-unmounted
------

Just abort current transaction and exit gracefully in this case.

Signed-off-by: Qu Wenruo <w...@suse.com>
---
 check/main.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/check/main.c b/check/main.c
index b597e2a607e5..e6756e0f852b 100644
--- a/check/main.c
+++ b/check/main.c
@@ -2735,7 +2735,10 @@ static int check_inode_recs(struct btrfs_root *root,
                                (unsigned long long)root->objectid);
 
                        ret = btrfs_make_root_dir(trans, root, root_dirid);
-                       BUG_ON(ret);
+                       if (ret < 0) {
+                               btrfs_abort_transaction(trans, ret);
+                               return ret;
+                       }
 
                        btrfs_commit_transaction(trans, root);
                        return -EAGAIN;
-- 
2.18.0

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