To be able to test this on a system with Radix MMU, the kernel needs to be patched with given kernel patch, since makedumpfile requires 'cpu_features.mmu_features' to check if MMU was Radix MMU: https://lore.kernel.org/linuxppc-dev/20230911091409.415662-1-adityag@xxxxxxxxxxxxx/T/#u Or, the vmlinux can be provided to makedumpfile, so that it finds the 'cur_cpu_spec.mmu_features' symbol, run makedumpfile with '-x' flag similar to this: makedumpfile -l -d 31 -x VMLINUX /proc/vmcore /var/crash/vmcore.kdump Thanks, Aditya Gupta _______________________________________________ kexec mailing list kexec@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/kexec