patch 9.0.0750: crash when popup closed in callback Commit: https://github.com/vim/vim/commit/0abd6cf62d65180dc2c40d67cd95f13b0691f7ea Author: Bram Moolenaar <Bram@vim.org> Date: Fri Oct 14 17:04:09 2022 +0100 patch 9.0.0750: crash when popup closed in callback Problem: Crash when popup closed in callback. (Maxim Kim) Solution: In syntax_end_parsing() check that syn_block is valid.

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service