Hello, all I am porting the linux 2.6.15 to the SMP8634(SOC based on the MIPS 4 Kec , Sigma Design). The booting and mount the rootfilesystem is fine with JFFS2. But When I try to write the file more than 4KB,It makes error like "Data CRC a81daeb5 != calculated CRC 349cadd9 for node at 0093bc64" But the file smaller tha 4KB, it is OK. My Flash is S29GL512N or S29GL256N from spansion. If you have a experience about the SMP8634, please share the information with me. or any other advice about the Flash, JFFS2 are welcome. Thanks, youngduk