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Date: Sat, 16 Dec 2006 13:45:22 +0900
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From: gnn@freebsd.org
To: Ask =?ISO-8859-1?Q?Bj=F8rn?= Hansen <ask@develooper.com>
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Cc: freebsd-net@freebsd.org, freebsd-stable@freebsd.org
Subject: Re: CARP + VLAN = kernel dump
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At Thu, 14 Dec 2006 19:05:04 -0800,
Ask Bj=F8rn Hansen wrote:
>=20
> Hi,
>=20
> If I enable carp on a vlan interface in rc.conf the kernel goes =20
> boom.  This is 6.2-RC from a couple of weeks ago.  (IIRC then I had =20
> the same problem setting up carp on a bridge'd interface).
>=20
> I'm configuring it like this:
>=20
> ifconfig_vlan2=3D"inet 10.50.0.3/24  vlan 202 vlandev sis2"
> ifconfig_carp2=3D"vhid 3 advskew 200 pass awe4jkfha4jkfha4f 10.50.0.1"
>=20
> cloned_interfaces=3D"... carp2 ... vlan2"
>=20
> However, if I do the carp2 setup "manually" after the system is =20
> booted, it is working fine.
>=20
> ifconfig carp2 vhid 3 advskew 200 pass hjarefhakjewfha 10.50.0.1
>=20
> Any ideas?
>=20
> (kernel dump below)
>=20
>   - ask
>=20
>=20
> fault virtual address   =3D 0x100005c
> fault code              =3D supervisor read, page not present
> instruction pointer     =3D 0x20:0xc05ba533
> stack pointer           =3D 0x28:0xc7975c30
> frame pointer           =3D 0x28:0xc7975c90
> code segment            =3D base 0x0, limit 0xfffff, type 0x1b
>                          =3D DPL 0, pres 1, def32 1, gran 1
> processor eflags        =3D interrupt enabled, resume, IOPL =3D 0
> current process         =3D 13 (swi1: net)
> trap number             =3D 12
> panic: page fault
> Uptime: 17s
> Cannot dump. No dump device defined.
>=20

A bit more information would really help.  What is needed is a
backtrace, and, if you can set up to dump core (I see by the output
that that's not done) that would be great.  A backtrace can be gotten
with=20

bt [enter]

at the console after the panic.

Thanks,
George