Indeed, there is a bug in the NAND driver. After putting in the fix, I see no&nbsp; more bad block error message. However, I repeatedly mount and umount yaffs2 and see more of these messages.<br><br>[&nbsp;&nbsp; 96.070000] yaffs block 7 gc prioritised<br>[&nbsp;&nbsp; 96.080000] yaffs block 12 gc prioritised<br>[&nbsp;&nbsp; 93.780000] yaffs: Allocation block 7 was not highest sequence id: block seq<br>= 336920575, dev seq = 2055602175<br>[42949493.870000] yaffs tragedy: attempting to use non-directory as a directory<br>in scan. Put in lost+found.<br><br>I would appreciate someone explains what went wrong with the last two errors. Thanks.<br><b><i></i></b><p>&#32;

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