Sure,

I took the same config as before, only disabling CONFIG_RSBAC_MAC in
the menuconfig.
I have similar results on the 2 machines : a kernel NULL pointer
dereference comes up, with a Oops, which then seems to cause a
deadlock.
Here are the boot logs.

Le mer. 27 mai 2026 à 16:15, Amon Ott via rsbac <rsbac@rsbac.org> a écrit :

> Hi Terence,
>
> I started looking into this problem, but have not found the reason yet.
> Since it seems to crash in the mostly obsolete MAC module code, could
> you please try without MAC?
>
> Amon.
>
> Am 22.05.26 um 15:02 schrieb GOMEZ, Terence:
>
> > Hi,
> >
> > With Jean-Marc Lacroix, we have been trying to enable more options than the
> > default ones for the RSBAC kernel configuration. However, the
> > configuration we
> > have come up with does not always boot correctly depending on the machine we
> > install the kernel on. All machines are based on Debian 13, and the
> > kernels were
> > launched in softmode, version 6.18.7.
> >
> > On the first machine, a Mac Book Pro 2011 (CPU : Intel Core i5-2415M)
> > with SysV
> > init and XFCE, the system comes up properly.
> > On the second one, a HP Z240 (CPU : Intel Xeon E3-1225) with systemd, we
> > have
> > first tried the kernel on a Gnome install, where the boot ends up with a
> > "kernel
> > NULL pointer dereference" and a kernel panic. On the same machine, where we
> > reinstalled a non graphical system, the same kernel configuration still
> > produces
> > the dereference with multiple kernel oops.
> > On the third one, a Lenovo ThinkStation P520c (CPU : Intel Xeon W-2102) with
> > systemd and no desktop environment, there also is a "kernel NULL pointer
> > dereference" that stops the boot (and is not in the logs), but no kernel
> > panic
> > is displayed.
> >
> > I've appended the config file along with the boot logs.
> >
> > Do you have any idea as to why these problems occur ?
> >
> > Regards,
> >
> > Terence Gomez
>
>
> Amon.

Terence Gomez