hvc_iucv.5bc646 Allocating memory failed with reason code=<reason>
Explanation
The z/VM IUCV hypervisor console (HVC) device driver initialization failed,
because of a general memory allocation failure. The reason code indicates
the memory operation that has failed:
kmem_cache (reason code=1),
mempool (reason code=2), or
hvc_iucv_allow= (reason code=3)
User response
Consider assigning more memory to your z/VM guest virtual machine.