On Mon, 18 Sep 2023 22:11:31 +0800 Po Lu <luangruo@yahoo.com> wrote:

> Stephen Berman <stephen.berman@gmx.net>
>
>> (gdb) up 0
>> #0 x_error_quitter (display=0x555555ead980, event=0x7fffffffc950)
>>     at /home/steve/src/emacs/emacs-master/src/xterm.c:26905
>> 26905	{
>> (gdb) p *error
>> $1 = {void (const char *, ...)} 0x55555575ae68 <error>
>>
>> FWIW, I get the same output when I run Emacs in gdb with -xrm
>> "emacs.synchronous: true", as requested by Eli.
>
> My apologies, I intended to ask for:
>
>   (gdb) p *event

No problem:

(gdb) r -Q -xrm "emacs.synchronous: true"
[...]
(gdb) frame 0
#0  x_error_quitter (display=0x555555ead980, event=0x7fffffffc930)
    at /home/steve/src/emacs/emacs-master/src/xterm.c:26905
26905	{
(gdb) p *event
$1 = {
  type = 0,
  display = 0x555555ead980,
  resourceid = 62914833,
  serial = 3527,
  error_code = 168 '\250',
  request_code = 151 '\227',
  minor_code = 32 ' '
}

> I need new glasses.  Or hands.
>
>>> In case the error arises from an extension request, please also send
>>> the
>>> output of the following command:
>>>
>>>   $ xdpyinfo -ext
>>
>> How do I know if there was an extension request?  The -ext flag
>> requires
>> an extension-name as argument.
>
> Sorry, xdpyinfo -ext all.

That's a lot of output; attached.

Steve Berman