Re: Recent -CURRENT and drm-66-kmod panic

From: Roman Bogorodskiy <bogorodskiy_at_gmail.com>
Date: Wed, 11 Mar 2026 17:30:34 UTC
  Roman Bogorodskiy wrote:

>   Rainer Hurling wrote:
> 
> > Am 27.02.26 um 18:16 schrieb Roman Bogorodskiy:
> > > Hi,
> > > 
> > > I've updated my and of January -CURRENT to today's version
> > > (c3577fcf3fd0494cc992021d4debbca09241a49e), rebuilt
> > > graphics/drm-66-kmod which is now at:
> > > 
> > > Version        : 6.6.25.1600011_8
> > > 
> > > System crashes during boot, full crash info is here:
> > > 
> > > https://people.freebsd.org/~novel/misc/core-drm-66-kmod-6.6.25.1600011.txt
> > > 
> > > Things work fine when booting the old kernel, even without rebuilding
> > > the drm-66-kmod.
> > > 
> > > Is that a known issue?
> > > 
> > > Roman
> > > 
> > 
> > Hmm, just a guess:
> > Did you also rebuild something like graphics/gpu-firmware-intel-kmod?
> 
> No, I didn't rebuild graphics/gpu-firmware-intel-kmod, only
> graphics/drm-66-kmod.
> 
> In the meantime I've opened an issue here:
> 
> https://github.com/freebsd/drm-kmod/issues/419
> 
> And as I commented there, the issue starts showing up for me with
> freebsd-src commit 79b05e7f80eb482287c700f10da9084824199a05.
> 
> I will check if rebuilding graphics/gpu-firmware-intel-kmod makes any
> difference.
> 
> > HTH,
> > Rainer
> > 

Just did a quick test.

 - checked out latest -CURRENT (ff2c98b30b57b9763e2a6575f729bab676e6c025)
 - build && reboot --> the same panic as before
 - reverted 79b05e7f80eb482287c700f10da9084824199a05
 - build && reboot --> system works fine

Didn't rebuild drm-66-kmod and related ports.

Roman