action_ = simcall_comm_isend(
simgrid::s4u::Actor::by_pid(src_)->get_impl(), mailbox->get_impl(), size_, -1.0, buf, real_size_, &match_send,
&xbt_free_f, // how to free the userdata if a detached send fails
- not process->replaying() ? smpi_comm_copy_data_callback : &smpi_comm_null_copy_buffer_callback, this,
+ process->replaying() ? &smpi_comm_null_copy_buffer_callback : smpi_comm_copy_data_callback, this,
// detach if msg size < eager/rdv switch limit
detached_);
XBT_DEBUG("send simcall posted");