The Freerunner has only 128mb ram, when this is used up applications get killed.

Make swap when you are connected to your openmoko with ssh

64M byte of swap just as an example

dd if=/dev/zero of=/swapfile bs=1024 count=65536

Next time you boot there will be swap

echo "/swapfile               swap                    swap    defaults        0 0">> /etc/fstab

Make the swap file work now:

swapon /swapfile

Make swap when microSD card is in a card reader

To help this you can add a bit of swap space on the microsd card:

dd if=/dev/zero of=/media/card/swapfile.img bs=1024k count=512
mkswap /media/card/swapfile.img
swapon /media/card/swapfile.img