KBI unexpexted change in stable/11 ?

[Slawa Olhovchenkov]

On Wed, Mar 28, 2018 at 10:29:10AM -0500, Eric van Gyzen wrote:

> On 03/28/2018 08:09, Slawa Olhovchenkov wrote:
> > I am upgrade system to latest -STABLE and now see kernel crash:
> > 
> > - loading virtualbox modules build on 11.1-RELEASE-p6
> > - loading nvidia module build on 11.1-RELEASE-p6 and start xdm
> > 
> > Is this expected? I am mean about loading modules builded on
> > 11.1-RELEASE on any 11.1-STABLE.
> 
> This is not expected.  Can you bisect to find the stable/11 commit that
> broke this?
> 
> If you can roll back to 11.1-RELEASE, you could probably just
> buildkernel and installkernel from various points along stable/11.  That
> would save a lot of time by avoiding buildworld.

r325665 is previos point and is good.
r331615 crashed.
Can I use some script for bisect?