On Wed, 29 Mar 2017 13:49:06 +0200, Johannes Berg wrote:
> 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"?
global
country 00: DFS-UNSET
(2402 - 2472 @ 92), (N/A, 20), (N/A)
(2457 - 2482 @ 92), (N/A, 20), (N/A), PASSIVE-SCAN
(2474 - 2494 @ 20), (N/A, 20), (N/A), NO-OFDM, PASSIVE-SCAN
(5170 - 5250 @ 160), (N/A, 20), (N/A), PASSIVE-SCAN
(5250 - 5330 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5490 - 5730 @ 160), (N/A, 20), (0 ms), DFS, PASSIVE-SCAN
(5735 - 5835 @ 80), (N/A, 20), (N/A), PASSIVE-SCAN
(57240 - 63720 @ 2160), (N/A, 0), (N/A)
