Eli Zaretskii <eliz@gnu.org> writes:

>> From: Thierry Volpiatto <thievol@posteo.net>
>> Cc: psainty@orcon.net.nz, 46790@debbugs.gnu.org
>> Date: Sat, 24 Apr 2021 11:11:05 +0000
>> 
>> >   . where is the .pdmp file?
>> 
>> Didn't find such file.
>
> It should be under /usr/local/libexec, please try finding it.

Got it.

/usr/local/libexec/emacs/28.0.50/x86_64-pc-linux-gnu/emacs.pdmp

-- 
Thierry