Re: Emacs crashes when writting JavaScript

[Eli Zaretskii <eliz@gnu.org>]

> From: Jorge Javier Araya Navarro <jorgejavieran@yahoo.com.mx>
> Date: Wed, 18 Sep 2019 00:49:24 -0600
> 
> I'm using Emacs 27.x compiled from the master branch. I have noticed that after several hours of
> work Emacs tends to crash or complete freeze the entire OS when I work on JavaScript code. I have
> prettier-js which prettifies the source after saving the file to disk, but not sure if this could be
> related. I also have suspicions on the parser of JS code, but because I have no idea how or where it
> keeps the AST, I can't be sure if that is related to the crashes too, I come to notice that under
> some circumstances –when the JSX code is fairly large and complex– Emacs slows down and feels heavy
> sort-of-speak.
> 
> I would like to know if there is a way to monitor Emacs on a normal run and after it crashes get
> back something that can help debugging whatever the issue happens to be. This behavior has become
> recurrent during this month, IIRC.

Run Emacs under GDB, and when it crashes, produce a C-level backtrace
and report it with all the details to the bug tracker (M-x report-emacs-bug).

Thanks.