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Date:      Thu, 4 May 2006 16:26:02 +0300
From:      Nikos Vassiliadis <nvass@teledomenet.gr>
To:        freebsd-questions@freebsd.org
Cc:        Shawn Guillemette <shawn@guillemette.org>
Subject:   Re: Kernel Panic when using mpd VPN Tunnel
Message-ID:  <200605041626.02730.nvass@teledomenet.gr>
In-Reply-To: <002001c66f79$909c5bd0$3103a8c0@frikenfrak>
References:  <002001c66f79$909c5bd0$3103a8c0@frikenfrak>

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On Thursday 04 May 2006 15:52, Shawn Guillemette wrote:
> Hello all,
>
>
>
>
>
>             I have a Digital AlphaPC 164LX 533 MHz, running FreeBSD
> 4.11-RELEASE
>
> I have installed /usr/ports/net/mpd and attempted to make a vpn connection

What kind of VPN? mpd does ppp over serial lines, ethernet, udp
and pptp.

> and after authenticating it seems to bring the machine to a panic with the
> following info in the messages file.
>
>
>
> May  3 17:20:35 medusa /kernel:
>
> May  3 17:20:35 medusa /kernel: fatal kernel trap:
>
> May  3 17:20:35 medusa /kernel:
>
> May  3 17:20:35 medusa /kernel: trap entry = 0x4 (unaligned access fault)
>
> May  3 17:20:35 medusa /kernel: a0         = 0xfffffe00005cb5ce
>
> May  3 17:20:35 medusa /kernel: a1         = 0x28
>
> May  3 17:20:35 medusa /kernel: a2         = 0x1
>
> May  3 17:20:35 medusa /kernel: pc         = 0xfffffc00004da0a0
>
> May  3 17:20:35 medusa /kernel: ra         = 0xfffffc00004dabec
>
> May  3 17:20:35 medusa /kernel: curproc    = 0xfffffe00098d6300
>
> May  3 17:20:35 medusa /kernel: pid = 189, comm = mpd
>
> May  3 17:20:35 medusa /kernel:
>
> May  3 17:20:35 medusa /kernel: panic: trap
>
> May  3 17:20:35 medusa /kernel:
>
>
>
>
>
> Now the how to I was following asked that I make sure that the kernel is
> compiled with the following device option.
>
>
>
> device          tun             # Packet tunnel.
>

I don't know how tun(4) is relevant

>
>
> This line was in the kernel config but was listed as follows
>
>
>
> pseudo-device   tun             # Packet tunnel.
>
>
>
>
>
> I have tried using both versions and have seen the same kernel panic each
> time.
>
>
>
>
>
>
>
> Any one have any tips for me?

Describe what you want to do please. what kind of VPN and
what the peers are. I am using mpd for a long time and never
had a panic(well, almost)

>
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