Re: Tabs

[Juri Linkov]

>>> One more thing: with the posted setup, although I don't see any tab bar,
>>> whenever I switch to a different workspace and back, and also under some
>>> under conditions I don't fully understand, Emacs gets stuck, it
>>> apparently infloops in redisplay.
>>
>> When this happens, please attach a debugger and use the technique
>> described in etc/DEBUG to find out where it loops.
>
> I can reproduce the redisplay issue, I never seen this before,
> maybe some recent change broke redisplaying.
>
> I tried to debug and in redisplay_internal, the value of
> garbaged_frame_retries has a very large number - about thousands
> order of magnitude.  It never resets the 'garbaged' flag set in the
> selected frame.  And I have no idea how to force the 'garbaged' flag
> to be reset.  It infloops in these lines:
>
>                 /* On some platforms (at least MS-Windows), the
>                    scroll_run_hook called from scrolling_window
>                    called from update_frame could set the frame's
>                    garbaged flag, in which case we need to
>                    redisplay the frame.  */
>                   if (FRAME_GARBAGED_P (f))
>                   goto retry_frame;

This problem can be reproduced easily by just resizing the frame
several times.