message: Scheduler: Improve Error message when Memory allocation fails
diff: @@ -88,9 +88,10 @@ impl TaskStacks {
  align_up!(size, BasePageSize::SIZE)
  };
  let total_size = user_stack_size + DEFAULT_STACK_SIZE + KERNEL_STACK_SIZE;
  - let virt_addr =
  - ::arch::mm::virtualmem::allocate(total_size + 4 * BasePageSize::SIZE).unwrap();
  - let phys_addr = ::arch::mm::physicalmem::allocate(total_size).unwrap();
  + let virt_addr = ::arch::mm::virtualmem::allocate(total_size + 4 * BasePageSize::SIZE)
  + .expect("Failed to allocate Virtual Memory for TaskStacks");
  + let phys_addr = ::arch::mm::physicalmem::allocate(total_size)
  + .expect("Failed to allocate Physical Memory for TaskStacks");
  debug!(
  "Create stacks at {:#X} with a size of {} KB",
  