6496754 zfod_segvn_crargs overwrite may cause panic

[susan.scheuf...@sun.com]

Author: susans
Repository: /hg/onnv/onnv-gate
Revision: 583eaac2bad112b87763c8d7a24870b61153cc9b
Log message:
6496754 zfod_segvn_crargs overwrite may cause panic

Files:
        update: usr/src/uts/common/vm/vm_as.c