Xent node beem GCed issue

[=?gb2312?B?TGluZ2VyIExlZSAowO695+RoKQ==?=]

Hi all,

I found a issue about Xent node been GCed and fail in ubifs_tnc_remove_ino function
Got error message “bad node type (255 but expected 3)”

The situation is
1. Create a file and set xattr (you get dent node A, inode B, xent C, xattr inode D)
2. Unlink the file (got A w/ ino 0, inode B w/ nlink 0 in log)
3. GC the LEB where C/D is belong to and write new data on the LEB
4. Reboot w/o commit
5. Then ubifs_tnc_remove_ino get the index of node C, but can’t get the node C (bad node happened)

We can’t mount the volume anymore

Suggestion: In Step 2, we maybe need log more (C w/ ino 0 and D w/ nlink 0)

Cheers,
Linger


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