Hi
I am working off MC8.4 on a MAC and I recently had a solution for this 'Segementation Fault error 'whilst AMA linking.
There is a folder called 'AMA Management' and it needs to be renamed by puting an X in front of it to stop the program referencing it. Then you relaunch MC and it will create a new AMA Management folder and the problem should be solved. It worked for me.
To do this on a Mac: Macintosh HD\Users\Shared\Avid MediaComposer\AMA Management On Windows: C:\Users\Public\Documents\Avid Media Composer\AMA Management
I hope this information is of use to you.