oracle virtual box soa suite : memory for crash kernel (0x0 to 0x0) not within permissible range

If your Oracle Linux VirtualBox doesn't start, and shows a
"memory for crash kernel (0x0 to 0x0) not within permissible range" error (in reality it's only a warning, and presumably not the cause for the crash),

you can either cry, or (see http://blogs.oracle.com/reynolds/entry/using_the_soa-bpm_virtualbox_a ) Enable IO APIC handler.