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bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs
From: |
martin rudalics |
Subject: |
bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs |
Date: |
Fri, 2 Apr 2021 08:48:35 +0200 |
> The answer, which I sort of suspected, is that it never hit that
> breakpoint at all before the assertion fires.
You're right. In
+ if (!NILP (Fstring_equal (XBUFFER (w->contents)->name_,
+ build_string ("*Server*"))))
+ best_window = Qt;
+
/* Undedicate WINDOW. */
wset_dedicated (w, Qnil);
/* Make WINDOW show the buffer returned by
@@ -3048,6 +3061,8 @@ window_loop (enum window_loop type, Lisp_Object obj, bool
mini,
if (EQ (window, selected_window)
&& XBUFFER (w->contents) == current_buffer)
Fset_buffer (w->contents);
+
+ replace_buffer_in_windows_safely_count += 1;
replace_buffer_in_windows_safely_count is incremented regardless of
whether W's buffer is *Server* or not. In either case the assertion
would not fail. So once we are here everything is all right and the bug
must be that we do not get here. I attach the next patch. Please put a
breakpoint at the
replace_buffer_in_windows_safely_count = 0;
and try to step through the rest of this function with GDB. And if you
don't hit it, the detection logic went wrong ...
martin
selected_window_contents.diff
Description: Text Data
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/01
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/01
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/01
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/01
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/01
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs,
martin rudalics <=
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/05
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/05
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/05
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/05
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/05
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/06
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/06
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/06
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, Michael Welsh Duggan, 2021/04/06
- bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs, martin rudalics, 2021/04/06