I have tried to build a cog dvlpt image using the following instructions :
$ git clone http://www.github.com/OpenSmalltalk/opensmalltalk-vm
$ cd opensmalltalk-vm/image
$ ./buildspurtrunkvmmakerimage.sh

while running the script, i get 2 errors (see attached file):
- "Context cannot be changed"
- and then "stackp store failure"
which prevent me from actually building the image (the last error goes in an infinite loop)

Has anyone ever experienced this problem?

I am using Ubuntu 15.10, 64 bits.