For GRES related tests user needs to be able to trigger a sudden RE crash. This article describes how it can be accomplished.

There is a special package called "panic", which is available for every Junos release. For example, the following panic packages are available for 23.4R1.10:

-rw-r--r-- 3 builder builder  11546 Dec 21 23:29 junos-panic-arm-32-23.4R1.10.tgz
-rw-r--r-- 3 builder builder  11227 Dec 21 23:30 junos-panic-x86-32-23.4R1.10.tgz

Steps to trigger RE crash:

1. Install panic package using CLI command "request system software add" .
2. Check if panic package is installed (show version | match panic). 
3. From Junos shell, execute /usr/libexec/panic command.