Re: ipfilter crash in latest netbsd-9

[Maxime Villard <max%m00nbsd.net@localhost>]

Le 01/06/2020 à 03:06, Emmanuel Dreyfus a écrit :
> Emmanuel Dreyfus <manu%netbsd.org@localhost> wrote:
>
> > After upgrading to 9.0, I experienced crashes when enabling
> > ipfilter (backtrace below). I tried latest netbsd-9 kernel without
> > improvement.
>
> In the meantime, I filed kern/55236 about the ipfilter regression in
> NetBSD 9.0 i386 Xen.
>
> It happens with i386 XEN3PAE_DOMU kernels when ipfilter is loaded as a
> module. If I add back pseudo-device ipfilter in the kernel, the problems
> vanishes.
>
> Maxime, you made the change quite a long time ago. Nobody reported
> issue? Would you have an idea of where this bug stems from?
> http://mail-index.netbsd.org/source-changes/2018/08/01/msg097228.html

I don't have time to check precisely right now, but if the problem arises
in a module and not in built-in, then it probably is a #define mishap.

Try to rebuild the module with -DXEN and -DPAE in CFLAGS.