bug#30288: 25.3; crashes on "add-to-list orgmode.org/elpa"

[Noam Postavsky]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Ihar Suvorau <ihar.suvorau@gmail.com>
>> Date: Fri, 2 Feb 2018 22:53:31 +0300
>> Cc: 30288@debbugs.gnu.org
>> 
>>  Do you get a crash only when both of those statements are uncommented,
>>  or is it either one?  Does M-x list-load-path-shadows RET give you any
>>  hits in ~/.emacs.d/lisp?
>> 
>> Well, that's funny, both these lines independently cause the crash. 
>> 
>> This configuration crashes:
>> 
>> (add-to-list 'package-archives '("org" . "http://orgmode.org/elpa/";) t)      
>> ;(add-to-list 'load-path "~/.emacs.d/lisp/")   
>> 
>> This config also crashes:
>> 
>> ;(add-to-list 'package-archives '("org" . "http://orgmode.org/elpa/";) t)     
>>  
>> (add-to-list 'load-path "~/.emacs.d/lisp/")   
>
> Which probably means some file(s) in your "~/.emacs.d/lisp/" is/are
> involved?

The fact that it crashes also without the load-path modification
suggests that it could just be a coincidence, and the contents of
"~/.emacs.d/lisp/" is not really important.  I think we need a C level
backtrace to make progress.  Testing with 26.0.91 could also be useful,
it's possible this is some bug that's already been fixed...