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bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs
From: |
Eli Zaretskii |
Subject: |
bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs |
Date: |
Fri, 19 Mar 2021 10:19:55 +0200 |
> Cc: mwd@md5i.com, 47244@debbugs.gnu.org, mwd@cert.org
> From: martin rudalics <rudalics@gmx.at>
> Date: Fri, 19 Mar 2021 09:15:07 +0100
>
> >>> So the selected window's buffer was killed. How is that possible?
> >>
> >> Perhaps during run_window_change_functions.
> >
> > Something like that, yes. But I don't understand how that can happen
> > technically: kill-buffer selects another buffer when killing the
> > current one. So how was that buffer killed, and yet stayed current?
>
> It's a problem of any hook we run during redisplay:
>
> (1) Redisplay chooses a window as the selected and its buffer as the
> current one.
>
> (2) Lisp code in a hook deletes that window and/or its buffer.
>
> (3) Redisplay continues to work on that window and/or its buffer as if
> it were still alive.
Sorry, I don't understand: when kill-buffer kills the current buffer,
it replaces it with another one. Are you saying we have a way of
killing buffers that bypasses kill-buffer? if so, can you describe how
that can be done?
Or what else am I missing?
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, (continued)
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Eli Zaretskii, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Eli Zaretskii, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/03/29
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/03/19
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs,
Eli Zaretskii <=
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/03/19
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/03/19
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Eli Zaretskii, 2021/03/19