bug#24091: 24.5; High CPU usage at startup while hidden

[martin rudalics]

> Having trouble parsing your sentence. This happens before
> x_make_frame_visible gets called, and before the actual frame is
> visible. Is that what you're asking?

Sorry for being unclear: In x_make_frame_visible we have this loop:

    while (!FRAME_VISIBLE_P (f))

What I wanted to know is whether the frame f here is the _same_ frame
you see in x_top_window_to_frame where IIUC

          if (wdesc == XtWindow (x->widget))
            return f;

fails.  I see no other place where "(wdesc == XtWindow (x->widget)) is
false" would apply.  Or am I missing something?

martin