Hi, all: When a program writes something on nand and then power failure happens, how does yaffs to recover it? I mount the partition again, it pops messages like this: **>> yaffs: BlockBits block 41965 is not valid ==>> yaffs bug: fs/yaffs2/yaffs_guts.c 343 **>> yaffs: Chunk Id (41965:109) invalid ==>> yaffs bug: fs/yaffs2/yaffs_guts.c 355 What can I do for this? do some commands or call any functions? Thanks.