Use this script (run as root) to automatically configure Linux to reboot after a Kernel hung event:
# Comment out previous kernel hung configuration sed -i -e 's/kernel.hung_/#kernel.hung_/g' /etc/sysctl.conf sed -i -e 's/kernel.panic/#kernel.panic/g' /etc/sysctl.conf # Add configuration (which becomes effective after reboot) cat <<EOF >>/etc/sysctl.conf # Reboot after kernel hang kernel.hung_task_timeout_secs=600 kernel.hung_task_panic=1 kernel.panic=300 EOF # Activate config NOW sysctl -w kernel.hung_task_timeout_secs=600 sysctl -w kernel.hung_task_panic=1 sysctl -w kernel.panic=300
The configuration works by converting the kernel hung event to a kernel panic event after kernel.hung_task_timeout_secs (10 minutes by default).
The configuration will be activated without reboot but it will also stay active after reboot.