kern/116837: ifconfig tunX destroy: panic

Remko Lodder remko at
Tue Oct 2 12:00:06 PDT 2007

On Tue, October 2, 2007 7:26 pm, Jonathan Pascal wrote:
> FreeBSD box 7.0-CURRENT FreeBSD 7.0-CURRENT #4: Sat Sep 29 19:41:37 CEST
> 2007     root at box:/usr/obj/usr/src/sys/CURRENT_STARLIGHT  i386
> Destroying a tun device while a process is using it via /dev/tunX leads to
> a kernel panic.
> # cat < /dev/tun0 > /dev/tun0 &
> # ifconfig tun0 destroy
> panic: tununits is out of sync - unit 0

So are you running with the debugging symbols etc? Do you get a core dump?
if so please go to the
page and see how you can get more information there. This PR ticket is
rather difficult to fix without detailed information.

Thanks & Regards

Kind regards,

     Remko Lodder               ** remko at
     FreeBSD                    ** remko at

     /* Quis custodiet ipsos custodes */

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