Unistim gives a buss error

Platform:
Sparc Ultra10
OS: UBUNTU 6.0
Asterisk 1.6.0.6 with Unistim

I have compile and installed asterisk. I have plugged one phone(I2004) when that phone start handshaking via unistim asterisk dies with a bus error

usually after the second discovery packet sent by the phone.

Anybody have unistim working on a SPARC system?

Worked ok on a PC using ubuntu 6 and sterisk 1.6.0.6