Subject: Re: bug#47244: 28.0.50; SIGSEGV in long-runnning Emacs

From: Eli Zaretskii <[email-masked]>
Date: Thu, 18 Mar 2021 21:51:37 +0200

> From: Michael Welsh Duggan <[email-masked]>
> Cc: "[email-masked]" <[email-masked]>,
>         "[email-masked]"
>  <[email-masked]>
> Date: Thu, 18 Mar 2021 15:24:42 -0400
> 
> (gdb) p XWINDOW(selected_window)->contents
> $10 = XIL(0x555558df4845)
> (gdb) xtype
> Lisp_Vectorlike
> PVEC_BUFFER
> (gdb) xbuffer
> $11 = (struct buffer *) 0x555558df4840
> "DEAD"

So the selected window's buffer was killed.  How is that possible?