[FS#522] sudden wifi-restarts when client connects / r3439 on TP-LINK TL-WDR4900 v1

Thu Feb 16 04:40:02 PST 2017

A new Flyspray task has been opened.  Details are below. 

User who did this - Bastian Bittorf (bittorf) 

Attached to Project - LEDE Project
Summary - sudden wifi-restarts when client connects / r3439 on TP-LINK TL-WDR4900 v1
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Supply the following if possible:
 - Device problem occurs on
 - Software versions of LEDE release, packages, etc.
 - Steps to reproduce

Thu Feb 16 13:31:57 2017 daemon.info hostapd: wlan1-1: STA 00:1e:65:94:22:52 IEEE 802.11: authenticated
Thu Feb 16 13:31:57 2017 daemon.info hostapd: wlan1-1: STA 00:1e:65:94:22:52 IEEE 802.11: associated (aid 2)
Thu Feb 16 13:31:57 2017 daemon.notice hostapd: wlan1-1: AP-STA-CONNECTED 00:1e:65:94:22:52
Thu Feb 16 13:31:58 2017 authpriv.info dropbear[4509]: Child connection from fe80::21e:65ff:fe94:2252%br-mastergate:32784
Thu Feb 16 13:32:01 2017 authpriv.notice dropbear[4509]: Password auth succeeded for 'root' from fe80::21e:65ff:fe94:2252%br-mastergate:32784
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773904] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773917] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773924] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773930] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773936] ath: Country alpha2 being used: US
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773942] ath: Regpair used: 0x3a
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.773948] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774020] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774025] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774031] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774038] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774043] ath: Country alpha2 being used: US
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774048] ath: Regpair used: 0x3a
Thu Feb 16 13:32:03 2017 kern.debug kernel: [ 8201.774054] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852253] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852266] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852273] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852279] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852286] ath: Country alpha2 being used: US
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852291] ath: Regpair used: 0x3a
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852298] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852368] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852373] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852380] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852386] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:04 2017 kern.debug kernel: [ 8202.852391] ath: Country alpha2 being used: US
[...]
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413158] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413165] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413171] ath: Country alpha2 being used: US
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413176] ath: Regpair used: 0x3a
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413183] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413254] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413259] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413265] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413272] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413277] ath: Country alpha2 being used: US
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413282] ath: Regpair used: 0x3a
Thu Feb 16 13:32:12 2017 kern.debug kernel: [ 8210.413288] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491093] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491106] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491113] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491120] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491126] ath: Country alpha2 being used: US
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491131] ath: Regpair used: 0x3a
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491138] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491210] ath: EEPROM regdomain: 0x8348
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491215] ath: EEPROM indicates we should expect a country code
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491221] ath: doing EEPROM country->regdmn map search
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491227] ath: country maps to regdmn code: 0x3a
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491232] ath: Country alpha2 being used: US
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491237] ath: Regpair used: 0x3a
Thu Feb 16 13:32:13 2017 kern.debug kernel: [ 8211.491243] ath: regdomain 0x8348 dynamically updated by user
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan0-1: interface state ENABLED->DISABLED
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan0-1: AP-DISABLED 
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan0-1: CTRL-EVENT-TERMINATING 
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: nl80211: deinit ifname=wlan0-1 disabled_11b_rates=0
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Network device 'wlan0-1' link is down
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Network alias 'wlan0-1' link is down
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Interface 'wlan' has link connectivity loss
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan1-1: interface state ENABLED->DISABLED
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan1-1: AP-STA-DISCONNECTED 00:1e:65:94:22:52
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan1-1: AP-STA-DISCONNECTED c0:c9:76:09:0c:e0
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan1-1: AP-DISABLED 
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: wlan1-1: CTRL-EVENT-TERMINATING 
Thu Feb 16 13:32:16 2017 daemon.notice hostapd: nl80211: deinit ifname=wlan1-1 disabled_11b_rates=0
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Network device 'wlan1-1' link is down
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Network alias 'wlan1-1' link is down
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Interface 'wlanRADIO1' has link connectivity loss
Thu Feb 16 13:32:16 2017 daemon.info olsrd[5562]: Removing interface wlan1
Thu Feb 16 13:32:16 2017 daemon.err olsrd[5562]: OLSR: sendto IPv4 'Network unreachable' on interface wlan1
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Network device 'wlan1' link is down
Thu Feb 16 13:32:16 2017 daemon.notice netifd: Interface 'wlanadhocRADIO1' has link connectivity loss
[...]

maybe this is a side-effect of may changed regdb, but it was till now never an issue:

root at F36-stube:~ :) iw reg get
global
country US: DFS-UNSET
	(2400 - 2494 @ 40), (N/A, 30), (N/A)
	(4910 - 5895 @ 40), (N/A, 30), (N/A)

phy#1
country US: DFS-UNSET
	(2400 - 2494 @ 40), (N/A, 30), (N/A)
	(4910 - 5895 @ 40), (N/A, 30), (N/A)

phy#0
country US: DFS-UNSET
	(2400 - 2494 @ 40), (N/A, 30), (N/A)
	(4910 - 5895 @ 40), (N/A, 30), (N/A)

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=522