dsplink can't work

When I using JFFS2 on NAND Flash,my program using dsplink can't work,and comes with some error like "Alignment trap: thttpd (844) PC=0x00014bf8 Instr=0xe5950010 Address=0xac457356 FSR 0x001".If I run any other program without using dsplink ,the system can works  properly.

But when I using  NFS,everything can  works properly.

Please help me to solve this problem.Thanks!

PS:

My linux kernel is 2.6.33.

Dsplink version is 1.65.00.02.

I'm using OMAPL138 .

Both mounting way use the same root file system.