Kdump service takes a long time to start

Solution Verified - Updated -


  • Red Hat Enterprise Linux 7


  • systemctl start kdump.service hangs
  • kdump service takes a long time to start

Root Cause

  • When restarting the kdump service via systemctl (start|restart) kdump.service, all changes to the file /etc/kdump.conf need to be incorporated into the kdump initramfs. While the system is writing the new initramfs for kdump, the terminal will appear hung. This can take several minutes.

This solution is part of Red Hat’s fast-track publication program, providing a huge library of solutions that Red Hat engineers have created while supporting our customers. To give you the knowledge you need the instant it becomes available, these articles may be presented in a raw and unedited form.