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bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode
From: |
Eli Zaretskii |
Subject: |
bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode |
Date: |
Fri, 11 Mar 2016 21:47:17 +0200 |
> From: Ken Raeburn <raeburn@raeburn.org>
> Date: Fri, 11 Mar 2016 14:18:55 -0500
> Cc: 22975@debbugs.gnu.org
>
> > On Mar 11, 2016, at 09:31, Eli Zaretskii <eliz@gnu.org> wrote:
> >
> >> From: Ken Raeburn <raeburn@raeburn.org>
> >> Date: Fri, 11 Mar 2016 06:17:45 -0500
> >> Cc: 22975@debbugs.gnu.org
> >>
> >> It appears that Emacs tries to display the “Using load-path …” message,
> >> calls echo_area_display, display_echo_area, with_echo_area_buffer,
> >> display_echo_area_1, resize_mini_window, and grow_mini_window, which then
> >> uses
> >> call3 (Qwindow_resize_root_window_vertically, …)
> >> but since we haven’t loaded window.el yet, there’s no function definition
> >> and we raise a signal, quitting out of loadup and trying to display a
> >> message.
> >
> > I'm not sure I follow: message calls message3_nolog, which should have
> > done this:
> >
> > void
> > message3_nolog (Lisp_Object m)
> > {
> > struct frame *sf = SELECTED_FRAME ();
> >
> > if (FRAME_INITIAL_P (sf))
> > message_to_stderr (m);
> >
> > Is FRAME_INITIAL_P not doing it job in this case?
>
> With “-nw”, sf->output_method is output_termcap. It’s cleared the window and
> drawn a line of dashes near the bottom, and messages are displayed on the
> bottom line (when it’s not crashing).
>
> Without “-nw”, sf->output_method is output_initial and messages are printed
> to stderr line by line until the X frame opens.
>
> > And just so I'm on the right page here: the "Loading foo..." messages
> > that loadup.el displays are shown where in this case? written to
> > stderr or displayed in the echo area?
>
> In the echo area.
>
> >
> >> As to why normal temacs doesn’t show the problem: The load path displayed
> >> for a normal temacs contains one directory, but for a CANNOT_DUMP emacs it
> >> contains several; in my tests, resize_mini_window computed the height
> >> needed as one line for the former and six lines for the latter, so only in
> >> the latter case did grow_mini_window need to get called.
> >
> > I think temacs should write these messages to stderr, so the whole
> > resize_mini_window rigmarole shouldn't get called at all. What am I
> > missing?
>
> In init_display we call init_tty and then update the frame’s output_method.
> Under X11, the X frame creation happens much later.
OK, I see. So now it's crystal clear that bidi-display-reordering
should be bound to nil until loadup finishes, otherwise we are
playing with fire.
Is there a way to know that the build CANNOT_DUMP from Lisp?
> > Error loop that displays what messages?
>
> *Tries* to display… From the stack trace, it looks like it’s throwing an
> error that window—-resize-root-window-vertically isn’t defined, then back at
> the top level we notice we’re displaying a message, so we call
> resize_echo_area_exactly, which decides to resize, which tries to call
> window—resize-root-window-vertically, etc.
Right, all is clear now.
Thanks.
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Ken Raeburn, 2016/03/10
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/10
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/10
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Ken Raeburn, 2016/03/11
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/11
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Ken Raeburn, 2016/03/11
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode,
Eli Zaretskii <=
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Kenneth Raeburn, 2016/03/11
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Andreas Schwab, 2016/03/11
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/11
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/12
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Ken Raeburn, 2016/03/12
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, martin rudalics, 2016/03/13
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/13
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, martin rudalics, 2016/03/13
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, Eli Zaretskii, 2016/03/13
- bug#22975: 25.0.92; CANNOT_DUMP build can't start in tty mode, martin rudalics, 2016/03/14