Re: [PATCH v2 0/6] MR2435: Fix activation context switching from SwitchToFiber().

[Zebediah Figura (＠zfigura)]

Zebediah Figura (@zfigura) commented about dlls/kernelbase/thread.c:
> -
> - if (src != head)
> - {
> -
>    dest->Flink = head;
> -
>    dest->Blink = tail;
> -
>    head->Blink = dest;
> -
>    tail->Flink = dest;
> - }
> - else InitializeListHead( dest );
>
> +}
> -
>
> +static void relocate_thread_actctx_stack( ACTIVATION_CONTEXT_STACK *dest )
> +{
> - ACTIVATION_CONTEXT_STACK *src = NtCurrentTeb()->ActivationContextStackPointer;
> -
> - if (dest != src)

I must be missing something, when can dest == src? Aren't we always moving from the fiber data to the TEB in ConvertFiberToThread()?