I just had another, pretty much identical panic, pics here
https://home.nuug.no/~peter/20160710/, transcript will follow in sendbug
output in a bit
--
Peter N. M. Hansteen, member of the first RFC 1149 implementation team
http://bsdly.blogspot.com/ http://www.bsdly.net/ http://www.nuug.no/
>Synopsis: Kernel panic, likely X related (X crashes, console shows panic
>message quoted)
>Category: kernel panic, MP kernel, Xorg
>Environment:
System : OpenBSD 6.0
Details : OpenBSD 6.0-beta (GENERIC.MP) #2259: Mon Jul 4 20:45:54
MDT 2016