Stephan Uphoff <ups@stups.com> writes:

> Unfortunately phoenix eventually will core dump with a bus error
> in _setcontext_u_xmm when it tries to put the IP on the stack.
> I have not yet investigated if the dump is caused by incorrect
> upcall arguments or by libpthread. (Timing of upcalls changed) 

I have some patches in progress that address a bug with related
symptoms in libpthread (it's a race condition right after STACK_SWITCH
in pthread_switch.S), and hope to get it tested today.

        - Nathan