bug#74590: 31.0.50 [scratch/igc branch]; key input sometimes skip fcitx input method preedit box

["Gerd Möllmann" <gerd.moellmann@gmail.com>]

Helmut Eller <eller.helmut@gmail.com> writes:

> On Fri, Nov 29 2024, Gerd Möllmann wrote:
>
>>> Not sure if that is used in your build, but in x_display_info (xterm.h)
>>> I see a number of struct frame pointers that are not fixed in fix_frame,
>>> starting with
>>>
>>>   struct frame *x_focus_frame;
>>>
>>> And if it's not that display info that is being used, I'd bet a small
>>> amount that whatever is actually used (pgtk_display_info?) has a similar
>>> problems.
>>>
>>> (Can't fix this myself, sorry, I only have macOS.)
>
> I think the x_display_info struct (I guess usually only one exists) is
> allocated in x_term_init (or pgtk_term_init) with igc_xzalloc_ambig.  So
> theoretically it doesn't need to be traced.

Then we're good, sorry for the noise.

What made me suspicious is that we have this in fix_frame:

	Lisp_Object *nle = &FRAME_DISPLAY_INFO (f)->name_list_element;
	IGC_FIX12_OBJ (ss, nle);