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.
> Can you please show the output of "iw list" and "iw phy0 channels"?
"iw phy7 channels":
Band 1:
* 2412 MHz [1]
Maximum TX power: 20.0 dBm
Channel widths:
* 2417 MHz [2]
Maximum TX power: 20.0 dBm
Channel widths:
* 2422 MHz [3]
Maximum TX power: 20.0 dBm
Channel widths:
* 2427 MHz [4]
Maximum TX power: 20.0 dBm
Channel widths:
* 2432 MHz [5]
Maximum TX power: 20.0 dBm
Channel widths:
* 2437 MHz [6]
Maximum TX power: 20.0 dBm
Channel widths:
* 2442 MHz [7]
Maximum TX power: 20.0 dBm
Channel widths:
* 2447 MHz [8]
Maximum TX power: 20.0 dBm
Channel widths:
* 2452 MHz [9]
Maximum TX power: 20.0 dBm
Channel widths:
* 2457 MHz [10]
Maximum TX power: 20.0 dBm
Channel widths:
* 2462 MHz [11]
Maximum TX power: 20.0 dBm
Channel widths:
* 2467 MHz [12]
Maximum TX power: 20.0 dBm
No IR
Channel widths:
* 2472 MHz [13]
Maximum TX power: 20.0 dBm
No IR
Channel widths:
* 2484 MHz [14]
Maximum TX power: 20.0 dBm
No IR
Channel widths: 20MHz
"iw list":
Wiphy phy7
max # scan SSIDs: 4
max scan IEs length: 2285 bytes
max # sched scan SSIDs: 0
max # match sets: 0
max # scan plans: 1
max scan plan interval: -1
max scan plan iterations: 0
Retry short limit: 7
Retry long limit: 4
Coverage class: 0 (up to 0m)
Device supports RSN-IBSS.
Supported Ciphers:
* WEP40 (00-0f-ac:1)
* WEP104 (00-0f-ac:5)
* TKIP (00-0f-ac:2)
* CCMP-128 (00-0f-ac:4)
* CCMP-256 (00-0f-ac:10)
* GCMP-128 (00-0f-ac:8)
* GCMP-256 (00-0f-ac:9)
Available Antennas: TX 0 RX 0
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
Band 1:
Bitrates (non-HT):
* 1.0 Mbps
* 2.0 Mbps (short preamble supported)
* 5.5 Mbps (short preamble supported)
* 11.0 Mbps (short preamble supported)
* 6.0 Mbps
* 9.0 Mbps
* 12.0 Mbps
* 18.0 Mbps
* 24.0 Mbps
* 36.0 Mbps
* 48.0 Mbps
* 54.0 Mbps
Frequencies:
* 2412 MHz [1] (20.0 dBm)
* 2417 MHz [2] (20.0 dBm)
* 2422 MHz [3] (20.0 dBm)
* 2427 MHz [4] (20.0 dBm)
* 2432 MHz [5] (20.0 dBm)
* 2437 MHz [6] (20.0 dBm)
* 2442 MHz [7] (20.0 dBm)
* 2447 MHz [8] (20.0 dBm)
* 2452 MHz [9] (20.0 dBm)
* 2457 MHz [10] (20.0 dBm)
* 2462 MHz [11] (20.0 dBm)
* 2467 MHz [12] (20.0 dBm) (no IR)
* 2472 MHz [13] (20.0 dBm) (no IR)
* 2484 MHz [14] (20.0 dBm) (no IR)
Supported commands:
* new_interface
* set_interface
* new_key
* start_ap
* new_station
* set_bss
* authenticate
* associate
* deauthenticate
* disassociate
* join_ibss
* set_tx_bitrate_mask
* frame
* frame_wait_cancel
* set_wiphy_netns
* set_channel
* set_wds_peer
* probe_client
* set_noack_map
* register_beacons
* start_p2p_device
* set_mcast_rate
* connect
* disconnect
* set_qos_map
Supported TX frame types:
* IBSS: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* managed: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90
0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* AP: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90 0xa0
0xb0 0xc0 0xd0 0xe0 0xf0
* AP/VLAN: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90
0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* mesh point: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-client: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-GO: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80 0x90
0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
* P2P-device: 0x00 0x10 0x20 0x30 0x40 0x50 0x60 0x70 0x80
0x90 0xa0 0xb0 0xc0 0xd0 0xe0 0xf0
Supported RX frame types:
* IBSS: 0x40 0xb0 0xc0 0xd0
* managed: 0x40 0xd0
* AP: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* AP/VLAN: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* mesh point: 0xb0 0xc0 0xd0
* P2P-client: 0x40 0xd0
* P2P-GO: 0x00 0x20 0x40 0xa0 0xb0 0xc0 0xd0
* P2P-device: 0x40 0xd0
software interface modes (can always be added):
* AP/VLAN
* monitor
interface combinations are not supported
HT Capability overrides:
* MCS: ff ff ff ff ff ff ff ff ff ff
* maximum A-MSDU length
* supported channel width
* short GI for 40 MHz
* max A-MPDU length exponent
* min MPDU start spacing
Device supports TX status socket option.
Device supports HT-IBSS.
Device supports SAE with AUTHENTICATE command
Device supports low priority scan.
Device supports scan flush.
Device supports AP scan.
Device supports per-vif TX power setting
Driver supports full state transitions for AP/GO clients
Driver supports a userspace MPM
Device supports configuring vdev MAC-addr on create.
