iwn0 hangs randomly when starting the machine

[Erich Dollansky]

Hi Adrian,

On Fri, 23 May 2014 09:01:36 -0700
Adrian Chadd <adrian at freebsd.org> wrote:

> a photo will be fine. :-)
> 
The photos are here:

http:/www.alogt.com/freebsd/network/SAM_0379.JPG

The first photo shows a hang of IWN after the machine successfully
started. The remaining photos show the backtrace.

http:/www.alogt.com/freebsd/network/SAM_0380.JPG
http:/www.alogt.com/freebsd/network/SAM_0381.JPG
http:/www.alogt.com/freebsd/network/SAM_0382.JPG
http:/www.alogt.com/freebsd/network/SAM_0383.JPG
http:/www.alogt.com/freebsd/network/SAM_0384.JPG

Erich
> 
> -a
> 
> 
> On 23 May 2014 08:59, Erich Dollansky <erichsfreebsdlist at alogt.com>
> wrote:
> > Hi,
> >
> > On Fri, 23 May 2014 08:36:31 -0700
> > Adrian Chadd <adrian at freebsd.org> wrote:
> >
> >> Ok, it's a null pointer dereference (based on the address you
> >> posted) and it's ipv6 related. That's .. odd.
> >>
> >> Can you provide a backtrace from the crash?
> >>
> > I can try tomorrow. Am I right that I can only take photos of the
> > screen at this point of the boot process?
> >
> > Erich
> >>
> >>
> >> -a
> >>
> >>
> >> On 23 May 2014 04:13, Erich Dollansky <erichsfreebsdlist at alogt.com>
> >> wrote:
> >> > Hi,
> >> >
> >> > On Tue, 8 Apr 2014 20:40:01 -0700
> >> > Adrian Chadd <adrian at freebsd.org> wrote:
> >> >
> >> >> I'm not sure. I'd really like to see what the story is with
> >> >> coexistence somehow.
> >> >>
> >> > I did some more investigations and came to the result that iwn
> >> > crashes in 'in6_ifattach_linklocal'.
> >> >
> >> > When I disable ipv6, it all works fine. I did several reboots
> >> > without a problem.
> >> >
> >> > To make this a bit more complicated, if I use only em0, the
> >> > machine starts normal. When I use iwn0 alone or together with
> >> > lagg0 and em0, the machine crashes during the boot process.  The
> >> > crashes only happen when IPV6 is enabled in rc.conf.
> >> >
> >> > Erich
> >