On Fri, 23 May 1997 16:32:00 -0700 (PDT) 
 mjacob@nas.nasa.gov wrote:

 > H/W: SS2, 16MB, 2 disks, sync mode turned *on* (an attempt to see what
 > state it was in....) going to one disk and doing make on the /usr/src
 > tree....
 > 
 > panic: pmap_page_protect !PG_V

...yah, this one has been around on and off for a while... it's hard to
reproduce (the 4 or 5 times it's happened to me, the situations have all
been very different), thus hard to find... sigh.

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939