Native stacktrace:

        mono [0x816c58f]
        [0xffffe440]
        /lib/libc.so.6(abort+0x101) [0xb7d811e1]
        /usr/local/lib/libode.so(dDebug+0x3a) [0xb453ff9a]
        /usr/local/lib/libode.so(dBodySetQuaternion+0xdd) [0xb453f45d]
        [0xb242e3ec]
        [0xb242e12f]
        [0xb242e02a]
        [0xb24412d2]
        [0xb4400794]
        [0xb43fff9a]
        [0xb43ff08c]
        [0xb43feedc]
        [0xb6d73ae7]
        [0xb6d7381c]
        [0xb6d73776]
        mono(mono_runtime_invoke_array+0x255) [0x80d0645]
        mono [0x80d0abd]
        mono [0x80eae73]
        mono [0x80ec53d]
        mono [0x80ad6f4]
        mono [0x810d762]
        mono [0x812ac45]
        /lib/libpthread.so.0 [0xb7eb4192]
        /lib/libc.so.6(clone+0x5e) [0xb7e1902e]

=================================================================
Got a SIGABRT while executing native code. This usually indicates
a fatal error in the mono runtime or one of the native libraries
used by your application.
=================================================================

Aborted