Loading carp module crash i386 (12-ALPHA2), seems VNET related

[Olivier Cochard-Labbé]

On Tue, Aug 21, 2018 at 11:29 AM Marko Zec <zec at fer.hr> wrote:

> On Mon, 20 Aug 2018 16:26:29 +0200
> Olivier Cochard-Labbé <olivier at freebsd.org> wrote:
>
> > Just loading carp kernel module is enough to panic it:
> >
> > [root at router]~# uname -a
> > FreeBSD router.bsdrp.net 12.0-ALPHA2 FreeBSD 12.0-ALPHA2  r338100M
> > i386 [root at router]~# kldload carp
> > Fatal trap 12: page fault while in kernel mode
>
> How many vnets were already instantiated at the time of kldloading
> carp?  Does the panic ocur with no (non-default) vnets instantiated?
>
>
Hi,

None VNET were instantiated: Just start the latest 12-i386 image (
https://download.freebsd.org/ftp/snapshots/VM-IMAGES/12.0-CURRENT/i386/Latest/)
on a VM, and once logged as root enter 'kldload carp' to trigger a panic.

Regards,

Olivier