hi , My problem is after I patched the kernel , compile the modules ,there is the message:<br><br>&nbsp; LD [M]&nbsp; /root/job/fs/yaffs2/yaffs2.o<br>&nbsp; Building modules, stage 2.<br>&nbsp; MODPOST<br>*** Warning: &quot;yaffs_CheckpointOpen&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!
<br>*** Warning: &quot;yaffs_EraseBlockInNAND&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!*** Warning: &quot;yaffs_InitialiseNAND&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!<br>*** Warning: &quot;yaffs_ReadChunkWithTagsFromNAND&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!
<br>*** Warning: &quot;yaffs_WriteChunkWithTagsToNAND&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!<br>*** Warning: &quot;yaffs_CheckpointWrite&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!<br>*** Warning: &quot;qsort&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!
<br>*** Warning: &quot;yaffs_CheckpointClose&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!<br>*** Warning: &quot;yaffs_CheckpointInvalidateStream&quot; [/root/job/fs/yaffs2/yaffs2.ko]<br>undefined!<br>*** Warning: &quot;yaffs_CheckpointRead&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!
<br>*** Warning: &quot;yaffs_MarkBlockBad&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!<br>*** Warning: &quot;yaffs_QueryInitialBlockState&quot; [/root/job/fs/yaffs2/yaffs2.ko] undefined!<br>&nbsp; CC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /root/job/fs/yaffs2/yaffs2.mod.o
<br>&nbsp; LD [M]&nbsp; /root/job/fs/yaffs2/yaffs2.ko<br><br>I get the yaffs.ko ,but I canot insmod it :<br><br>FATAL: Error inserting yaffs (/lib/modules/2.6.16.19/kernel/fs/yaffs2/yaffs.ko): Unknown symbol in module, or unknown parameter (see dmesg)
<br><br>why ?<br>&nbsp;<br>regards.<br><br><br><br>