NO JOY Upgrading my Linode now getting invalid opcode

[ghurty]

I installed Piaf (Incredible PBX 11-12, asterisk 11) on a Linode running Ubuntu 14. Everything was working great. I upgraded the Linode to a larger package and now asterisk fails to start. The error code I am getting in syslog is

Apr 10 16:26:42 localhost kernel: traps: asterisk[4005] trap invalid opcode ip:4a8625 sp:7ffe0ebe8a40 error:0 in asterisk[400000+231000]
Apr 10 16:26:43 localhost kernel: traps: asterisk[4027] trap invalid opcode ip:4a8625 sp:7ffddd3f4220 error:0 in asterisk[400000+231000]
Apr 10 16:26:43 localhost kernel: traps: asterisk[4061] trap invalid opcode ip:4a8625 sp:7ffeac746c20 error:0 in asterisk[400000+231000]
Apr 10 16:26:43 localhost kernel: traps: asterisk[4091] trap invalid opcode ip:4a8625 sp:7ffcd7e23a40 error:0 in asterisk[400000+231000]

From my quick googling it looks like I may need to recomple something, I'm not sure what though and how.

Thank you