Just in case this helps, I never saw a single one of these on my IPC running
   1.0.  Just last Friday I upgraded to a SPARCstation-2 (hallelujah!  I can
   actually run an MBONE app w/ a video window now (-: ) and within a few days
   I got my first "panic: pmap_page_protect !PG_V 2" crash; sometime during the
   night while "xlock" was in control.  Maybe something just afflicting 4/75's?
   (Oh, and this still under 1.0, not -current.  Yet.)

i've got an ELC.

.mrg.