Kdump might fail on some AMD hardware that's running the current Oracle Linux release. Impacted hardware includes the AMD EPYC CPU servers.

To work around this issue, modify the /etc/sysconfig/kdump configuration file and remove the iommu=off command line option from the KDUMP_COMMANDLINE_APPEND variable. Restart the kdump service for the changes to take effect.

(Bug ID 31274238, 34211826, 34312626)