Anyone experiencing the near lockup or even crash when transferring large files from your laptop using USB host mode and a flash drive to dump it into your internal memory can follow this thread, it worked for me, I made a custom profile with swappolube, it also helped with big transfers over network and from the SD card to my EMMC. http://talk.maemo.org/showthread.php?t=69973
The issue is apparently large writes to the EMMC which also is home to the 1gb swap partition gets overloaded with input/output.