On Wed, 2017-03-29 at 06:28 -0400, Dennis New wrote:
> On Wed, 29 Mar 2017 09:34:50 +0200, Johannes Berg wrote:
> > On Fri, 2017-03-24 at 21:32 -0400, Dennis New wrote:
> > > Ever since I upgraded to the 4.10 kernels (I don't think this
> > > behavior existed in the 4.8 series), after I startup my laptop
> > > (either from cold boot, or from standby), my wlan0 interface
> > > keeps
> > > deauthenticating
> > > ...
> > > 19:23:29 kernel: wlan0: authenticate with 00:11:22:33:44:55
> > > 19:23:29 kernel: ------------[ cut here ]------------
> > > 19:23:29 kernel: WARNING: CPU: 0 PID: 18925 at
> > > net/mac80211/mlme.c:287 ieee80211_determine_chantype+0x12e/0x380
> >
> > This is already indicating a severe problem. I don't know how you
> > end
> > up in this situation with b43, since that doesn't have any
> > regulatory
> > magic afaict.
> >
> > > 19:23:29 kernel: wlan0: associated
> > >
> > > 19:24:29 kernel: wlan0: deauthenticating from 00:11:22:33:44:55
> > > by
> > > local choice (Reason: 3=DEAUTH_LEAVING)
> >
> > I'm convinced that this comes from reg_check_channels().
> >
> > The above WARN_ON() already told you that the channel was
> > considered
> > invalid.
> >
> > Do you know what channel your AP is on?
>
> 6
>
> > Perhaps show the output of "iw wlan0 scan dump" while it's
>
> connected (you have 60 seconds :P)
>
> I have been having stable connections for the past few days,
> simply by putting a 60 second sleep before starting my wlan0.
> Although
> if I /etc/init.d/net.wlan0 restart it (without the delay), it will
> still do this deauth'ing.
Very strange.
> * 2437 MHz [6]
> Maximum TX power: 20.0 dBm
> Channel widths:
That's quite odd, why isn't it listing any possible channel widths?!
I get:
* 2437 MHz [6]
Maximum TX power: 15.0 dBm
Channel widths: 20MHz HT40- HT40+
What's "iw reg get"?
johannes
