Re: drm panic after new world

On Mon, Jun 02, 2025 at 03:44:37PM -0700, David Wolfskill wrote:
> On Mon, Jun 02, 2025 at 03:35:50PM -0700, Steve Kargl wrote:
> > ...
> > How does one use dates to checkout a particular head?
> > If I'm at the top of HEAD and need to got back to
> > mid-february, what's the easiest option for performing
> > a bisection by hand?
> > 
> 
> Maybe someone else will have a better idea, but you could:
> 
> * Examine (say)
> https://lists.freebsd.org/archives/dev-commits-src-main/2025-February/date.html,
>  filtering out the "replies" to find git commit hashes.
> 

Thanks for the suggestion.

Unfortunately, this is what I feared.  Suppose I find 
commit hash abcdef for 20250215 and hash ghijkl for
20250315, i.e, the 2 commits roughly a month apart.
I can do

% git checkout abcdef

Now, I do the usual buildworld/installworld including 
the etcupdate steps.  I need to rebuild drm-515-kmod
port.  Test to see if drm works again,

% git checkout main   (to recover the main branch).
% git checkout ghijkl  

Repeat the world dance.

-- 
Steve