6398414 latest ON DEBUG bits + latest NVidia driver = panic

[john.m.mar...@sun.com]

Author: rugrat
Repository: /hg/onnv/onnv-gate
Revision: 47f4b7652f38d7ee2fbaebc6b11f352d29187372
Log message:
6398414 latest ON DEBUG bits + latest NVidia driver = panic

Files:
        update: usr/src/uts/i86pc/io/gfx_private/gfxp_segmap.c