Hi all, I am using arm11 board with 128MB NAND device.After mount,I use ls -la command shows below: # ls -la drwxr-xr-x 1 root root 2048 Dec 13 21:34 . drwxr-xr-x 23 root root 0 Jan 1 1970 .. drwx------ 1 root root 2048 Dec 13 21:34 lost+found -rwx------ 1 root root 146028888098 Apr 20 2016 yaffs_test1 -rwx------ 1 root root 73014444049 Apr 20 2016 yaffs_test2 -rw-rw-r-- 1 root root 0 Apr 20 2016 yaffs_test3 -rw-rw-r-- 1 root root 31898722114819 Apr 20 2016 yaffs_test4 The acutal yaffs_test4 size is 7427£¨0x1D03£©,but kernel stat size is 31898722114819£¨0x1D0300001D03£©. Ps: my kernel version is 2.6.35 Regards, xukai