[Voyage-linux] ifdown/ifup on ath0 causes WRAP to reboot

[Punky]

On 4/18/06, Edwin Whitelaw <Edwin.Whitelaw at nrvunwired.net> wrote:
> Punky,
>
> >
> > Tried you config and does exhibit your reboot problem.  Do you see
> > kernel panic message in the serial console?  If not, I think it is
> > probably relates to power issues.  Check your PSU unit, or check your
> > WRAP board if it has 8 capacitors?
> The system was ethernet only connected at the time so I couldn't see the
> kernel messages.  Will connect a console and see.  This is a new WRAP
> with 8 elcos, an 18v power supply directly connected and only 1 SR5 in
> it.  I would be surprised if this were power related.  It's my
> understanding the maximum load really only occurs when the radio is
> actually txmitting.?
> >
Sorry I missed the *not* is the previous mail.  It should read "Tried
you config and does *not *exhibit your reboot problem."

I don't know why, may be my /etc/network/interfaces is a bit different
that you.  But I recalled that I have similar problem with earlier
madwifi-ng builds.  My experience is if I have ifdown a br0 (WDS
bridge) and ifup ath0 (ad-hoc), kernel panic asserted.

But to get around you problem, you may try to use "up iwconfig ath0
channel" and rate instead of using "wireless-channel" and
"wireless-rate".  And I also recalled that the sequence for iwconfig
rate and channel is a bit tricky, sometimes it will screw you up.

--
--
Regards,
Punky
P U N K N ! X  . c o m
Technology + Lifestyle
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