[OpenIndiana-discuss] /hipster: latest kernel updates cause crash when vbox guest is started

[Nikola M]

On 04/18/16 01:29 PM, Predrag Zečević - Unix Systems Administrator wrote:
>
> Hi,
>
> ticket opened: https://www.illumos.org/issues/6919

I asked helpful VBox people and they says it looks like 'Supervisor Mode 
Access Prevention' (SMAP) problem. 
(https://en.wikipedia.org/wiki/Supervisor_Mode_Access_Prevention), 
VirtualBox disables SMAP only for Solaris builds (SMAP support works on 
Linux, OSX) , because Oracle Solaris disables SMAP.

So aether illumos after illumos-a526879 needs an option to disable SMAP 
for VirtualBox compatibility
or VirtualBox needs to handle SMAP on Solaris build that runs on illumos 
and VirtualBox doesn't have illumos-specific build.

Proposed workaround from tsoome:
disable_smap/W1 in mdb -k , disable_smap is int, so /W should be ok (to 
write 4byte value)

Please try it and report inside https://www.illumos.org/issues/6919 
ticket  if it worked,
so it is know if it is truly SMAP issue.