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bug#45156: 28.0.50; Segfault due to glyph_row being set to NULL
From: |
Stefan Kangas |
Subject: |
bug#45156: 28.0.50; Segfault due to glyph_row being set to NULL |
Date: |
Thu, 10 Dec 2020 08:16:14 -0600 |
Torsten Bronger <bronger@physik.rwth-aachen.de> writes:
>>> to be put in /tmp. tex-fold-mode must be present. Furthermore,
>>> place .emacs and .emacs.desktop in the proper positions, start
>>> current Git Emacs, and press the "cursor up" button. Then, Emacs
>>> crashes for me.
>>
>> Here are the steps I followed:
>>
>> 0. Install auctex
>> 1. Put test.tex in /tmp
>> 2. emacs -Q
>> 3. C-x C-f /tmp/test.tex
>> 4. <up>
>>
>> But I did not see any crash. Are any other steps needed to
>> reproduce this?
>
> Yes, .emacs and .emacs.desktop in the tar file need to be in the
> proper locations. Moreover, tex-fold-mode must be installed. This
> is annoying, I know, but I really found no simpler way to trigger
> the error.
OK, so I tried this:
0. mkdir /tmp/emacs-bug
1. mv test.tex .emacs .emacs.desktop /tmp/emacs-bug
2. cd /tmp/emacs-bug
3. HOME=`pwd` emacs
4. M-x package-install RET
5. [Install auctex]
6. C-x C-f test.tex RET
7. <up>
And I see no crash. Are the above steps all that is needed?
>> Could you also produce a backtrace of the problem? You can find
>> instructions for doing that by typing `C-h C-d'. Don't forget to
>> rebuild Emacs with debugging symbols first.
>
> I will try to do so, but please bear with me as I have no experience
> with such tools and workflows.
Thanks, that would be helpful.