Hello, in erts/emulator/sys/unix/sys.c:37 we can see #if defined(ERTS_SMP) && defined(USE_KERNEL_POLL) # error "smp support and kernel poll currently not supported (use poll)" #endif I would like to apply epoll patch from sipphone http://developer.sipphone.com/ejabberd/erlang_epoll_patch/ and I wonder if there is an issue with SMP.