GNU bug report logs - #70059
30.0.50; c-ts-mode crashes emacs

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Message #44 received at 70059 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Yuan Fu <casouri <at> gmail.com>
Cc: felix.dick <at> web.de, 70059 <at> debbugs.gnu.org
Subject: Re: bug#70059: 30.0.50; c-ts-mode crashes emacs
Date: Tue, 02 Apr 2024 21:34:06 +0300

> From: Yuan Fu <casouri <at> gmail.com>
> Date: Tue, 2 Apr 2024 11:22:44 -0700
> Cc: Eli Zaretskii <eliz <at> gnu.org>,
>  70059 <at> debbugs.gnu.org
> 
> > But as i wrote, it doesn't crash with tree-sitter from the official arch
> > linux repos, and because i program in C every day, i switched to the
> > stable tree-sitter and had no problems since.
> > 
> > That's why i asked if a faulty tree-sitter should be able to crash
> > emacs. If that is acceptable, this bug report can be closed.
> 
> I mean tree-sitter (the library) runs in the main thread, if it triggers a segfault, AFAIK Emacs currently can’t really do anything. Is that right Eli?

You are right.  But these crashes seem to be inside GC, which
processes our objects, so if tree-sitter somehow causes us to create
invalid Lisp objects, it's our fault, at least to some extent.

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