hello sir. We has been used to yaffs file system. I found error. But I don¡¯t know error. System features. - Base on linux 2.4 - Using yaffs file system - Using nand flash memory Step 1. Recording files. I recorded files in yaffs file system. Recorded file list In directory ( /mnt/hello ) , using yaffs file system Test1-name.mp3 Test2-name.mp3 Test3-name.mp3 Test4-name.mp3 Step 2. When problems occur. When problems occur in yaffs file system. The name of files has been cut in directory. The Cutting name of files exist. Recorded file list in directory (/mnt/hello) Test1-na Test1-name.mp3 Test2-nam Test2-name.mp3 Test3-na Test3-name.mp3 Test4-name. Test4-name.mp3 Why do exist it cutting name of files? You will know to exist cutting name of files. And you will help me. If you know, please send e-mail to me. Thank you. [yaff information] linux#] cat /proc/yaffs YAFFS built:Feb 21 2007 14:42:15 $Id: yaffs_fs.c,v 1.9 2005/07/19 20:41:59 charles Exp $ $Id: yaffs_guts.c,v 1.31 2006/03/08 07:59:20 charles Exp $ Device yaffs startBlock......... 0 endBlock........... 1023 chunkGroupBits..... 0 chunkGroupSize..... 1 nErasedBlocks...... 4 nTnodesCreated..... 2500 nFreeTnodes........ 2 nObjectsCreated.... 200 nFreeObjects....... 23 nFreeChunks........ 185 nPageWrites........ 0 nPageReads......... 2 nBlockErasures..... 0 nGCCopies.......... 0 garbageCollections. 0 passiveGCs......... 0 nRetriedWrites..... 0 nRetireBlocks...... 0 eccFixed........... 0 eccUnfixed......... 0 tagsEccFixed....... 0 tagsEccUnfixed..... 0 cacheHits.......... 0 nDeletedFiles...... 1 nUnlinkedFiles..... 1 nBackgroudDeletions 0 useNANDECC......... 0 isYaffs2........... 0