Ensure kdump is running with kdumpctl status. echo 1 > /proc/sys/kernel/sysrq echo c > /proc/sysrq-trigger Then check /var/crash for a core dump. Depending on /etc/kdump.conf, it may be in a different location.

  • A vmcore dump is also generated in /proc/vmcore.
  • Good troubleshooting areas to check are:
  • /var/log/messages
  • /var/log/kdump.log

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