Testing your dump configuration

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You can deliberately crash your virtual server to trigger a dump.

About this task

Use this procedure to test your dump configuration or for non-responding virtual servers.

  • If kdump is set up on your KVM guest, kdump creates a dump on the virtual server.
  • For guests without a kdump setup or if kdump fails, the action is carried out that is specified for the on_crash element in the domain configuration-XML file of the virtual server. If coredump_restart or coredump_destroy are specified, this action results in a dump.

Procedure

Issue a virsh inject-nmi command.
# virsh inject-nmi <VS>

where <VS> is the name of the virtual server as specified in its domain configuration-XML file.