[jira] [Closed] (MYNEWT-164) NFFS - Restore fails when an object from a GCed area is referenced

["Christopher Collins (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MYNEWT-164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Collins closed MYNEWT-164.
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    Resolution: Fixed

> NFFS - Restore fails when an object from a GCed area is referenced
> ------------------------------------------------------------------
>
>                 Key: MYNEWT-164
>                 URL: https://issues.apache.org/jira/browse/MYNEWT-164
>             Project: Mynewt
>          Issue Type: Bug
>          Components: NFFS
>            Reporter: Christopher Collins
>            Assignee: Christopher Collins
>             Fix For: v0_8_0_beta2
>
>
> (Credit for debugging this goes to Paul and Marko)
> At the end of file system detection, a final sweep through the hash is performed.  During this sweep, any deleted inodes and their children are removed from the hash.  If an inode's child (data block if file; child inode if directory) is not present in the hash, the procedure terminates prematurely, leaving the hash in a corrupt state.
> The sweep process should expect some child objects to be missing from the hash.  Since the child objects belong to a deleted inode, they are subject to garbage collection.  When an NFFS area is garbage collected, it may leave some objects on disk with invalid references (this is not a problem, because these objects are themselves deleted).
> The fix is to ignore this error during the sweep.



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