This issue has been reported on imyller/meta-nodejs#83, but I guess meta-oe is also appropriate because I have faced the same problem even without meta-nodejs.

In a nutshell, nodejs doesn't work on qemux86:

$ node
[142.374544] traps: node[361] trap invalid opcode ip:85f9238 sp:bfc1f030 error:0
[142.374706] in node[8048000+ee8000]
Illegal instruction