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[Bug 837076] UdevLog.txt

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Haw Loeung <837076@xxxxxxxxxxxxxxxxxx>
Date: Thu, 12 Sep 2013 04:18:54 -0000
Reply-to: Bug 837076 <837076@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
apport information

** Attachment added: "UdevLog.txt"
   https://bugs.launchpad.net/bugs/837076/+attachment/3816934/+files/UdevLog.txt

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https://bugs.launchpad.net/bugs/837076

Title:
  8086:422b [iwlagn] Intel Centrino Ultimate-N 6300 AGN and packet loss

Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Saucy:
  Confirmed

Bug description:
  Hi,

  I have recently swapped the internal WiFi adapter with an Ultimate-N
  6300 and I'm seeing a lot of packet loss. Some additional info is as
  follows:

  wlan1     IEEE 802.11abgn  ESSID:"star-local"  
            Mode:Managed  Frequency:2.412 GHz  Access Point: 00:22:75:29:EC:61   
            Bit Rate=121.5 Mb/s   Tx-Power=15 dBm   
            Retry  long limit:7   RTS thr:off   Fragment thr:off
            Power Management:off
            Link Quality=49/70  Signal level=-61 dBm  
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:205  Invalid misc:5   Missed beacon:0

  $ ping -c 20 192.168.2.1
  PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
  64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=3.83 ms
  64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=2.56 ms
  64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=2.59 ms
  64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=2.57 ms
  64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=3.23 ms
  64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=3.13 ms
  64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=4.04 ms
  64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=3.89 ms
  64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=3.80 ms
  64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=82.4 ms
  64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=105 ms
  64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=2.57 ms
  64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=2.97 ms
  64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=2.57 ms
  64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=2.57 ms
  64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=3.94 ms
  64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=3.51 ms

  --- 192.168.2.1 ping statistics ---
  20 packets transmitted, 17 received, 15% packet loss, time 19028ms
  rtt min/avg/max/mdev = 2.567/13.879/105.633/29.547 ms

  [ 5677.146495] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
  [ 5677.146504] iwlagn: Copyright(c) 2003-2011 Intel Corporation
  [ 5677.146662] iwlagn 0000:01:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
  [ 5677.146734] iwlagn 0000:01:00.0: setting latency timer to 64
  [ 5677.146841] iwlagn 0000:01:00.0: Detected Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74
  [ 5677.164555] iwlagn 0000:01:00.0: device EEPROM VER=0x436, CALIB=0x6
  [ 5677.164562] iwlagn 0000:01:00.0: Device SKU: 0Xb
  [ 5677.164566] iwlagn 0000:01:00.0: Valid Tx ant: 0X7, Valid Rx ant: 0X7
  [ 5677.164650] iwlagn 0000:01:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
  [ 5677.165072] iwlagn 0000:01:00.0: irq 46 for MSI/MSI-X
  [ 5677.168745] iwlagn 0000:01:00.0: loaded firmware version 9.221.4.1 build 25532
  [ 5677.169561] Registered led device: phy6-led
  [ 5677.169644] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain 
  [ 5677.170079] ieee80211 phy6: Selected rate control algorithm 'iwl-agn-rs'
  [ 5677.221260] udevd[11216]: renamed network interface wlan0 to wlan1
  [ 5677.640171] ADDRCONF(NETDEV_UP): wlan1: link is not ready
  [ 5685.467019] wlan1: authenticate with 00:22:75:29:ec:61 (try 1)
  [ 5685.469706] wlan1: authenticated
  [ 5685.470195] wlan1: associate with 00:22:75:29:ec:61 (try 1)
  [ 5685.662167] wlan1: associate with 00:22:75:29:ec:61 (try 2)
  [ 5685.666099] wlan1: RX AssocResp from 00:22:75:29:ec:61 (capab=0x411 status=0 aid=1)
  [ 5685.666110] wlan1: associated
  [ 5685.680357] ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
  [ 5685.680483] cfg80211: Calling CRDA for country: US
  [ 5685.689341] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689355] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689364] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689373] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689381] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689389] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689397] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689406] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689413] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689422] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689429] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689438] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689446] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689454] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689461] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689469] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689475] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689482] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689490] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689498] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689504] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689511] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5685.689517] cfg80211: Disabling freq 2467 MHz
  [ 5685.689521] cfg80211: Disabling freq 2472 MHz
  [ 5685.689527] cfg80211: Updating information on frequency 5180 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689536] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5685.689542] cfg80211: Updating information on frequency 5200 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689550] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5685.689557] cfg80211: Updating information on frequency 5220 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689566] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5685.689573] cfg80211: Updating information on frequency 5240 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689582] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5685.689590] cfg80211: Updating information on frequency 5260 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689598] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689604] cfg80211: Updating information on frequency 5280 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689612] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689618] cfg80211: Updating information on frequency 5300 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689626] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689632] cfg80211: Updating information on frequency 5320 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689639] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689645] cfg80211: Updating information on frequency 5500 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689653] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689659] cfg80211: Updating information on frequency 5520 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689666] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689672] cfg80211: Updating information on frequency 5540 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689679] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689685] cfg80211: Updating information on frequency 5560 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689693] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689700] cfg80211: Updating information on frequency 5580 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689707] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689713] cfg80211: Disabling freq 5600 MHz
  [ 5685.689717] cfg80211: Disabling freq 5620 MHz
  [ 5685.689721] cfg80211: Disabling freq 5640 MHz
  [ 5685.689727] cfg80211: Updating information on frequency 5660 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689735] cfg80211: 5650000 KHz - 5710000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689742] cfg80211: Updating information on frequency 5680 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689750] cfg80211: 5650000 KHz - 5710000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689758] cfg80211: Updating information on frequency 5700 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689766] cfg80211: 5650000 KHz - 5710000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5685.689773] cfg80211: Updating information on frequency 5745 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689781] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5685.689787] cfg80211: Updating information on frequency 5765 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689795] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5685.689801] cfg80211: Updating information on frequency 5785 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689810] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5685.689818] cfg80211: Updating information on frequency 5805 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689826] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5685.689833] cfg80211: Updating information on frequency 5825 MHz for a 20 MHz width channel with regulatory rule:
  [ 5685.689840] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5685.689854] cfg80211: Regulatory domain changed to country: US
  [ 5685.689859] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  [ 5685.689867] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
  [ 5685.689875] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
  [ 5685.689881] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5685.689888] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5685.689894] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5685.689900] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
  [ 5696.142317] wlan1: no IPv6 routers present
  [ 5704.844712] cfg80211: All devices are disconnected, going to restore regulatory settings
  [ 5704.844726] cfg80211: Restoring regulatory settings
  [ 5704.844751] cfg80211: Calling CRDA to update world regulatory domain
  [ 5704.852662] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain 
  [ 5704.852672] cfg80211: World regulatory domain updated:
  [ 5704.852676] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  [ 5704.852683] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5704.852689] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
  [ 5704.852695] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
  [ 5704.852700] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5704.852705] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5707.485993] wlan1: authenticate with 00:22:75:29:ec:61 (try 1)
  [ 5707.684842] wlan1: authenticate with 00:22:75:29:ec:61 (try 2)
  [ 5707.687942] wlan1: authenticated
  [ 5707.688277] wlan1: associate with 00:22:75:29:ec:61 (try 1)
  [ 5707.692145] wlan1: RX ReassocResp from 00:22:75:29:ec:61 (capab=0x411 status=0 aid=1)
  [ 5707.692153] wlan1: associated
  [ 5707.706352] cfg80211: Calling CRDA for country: US
  [ 5707.715195] cfg80211: Updating information on frequency 2412 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715200] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715203] cfg80211: Updating information on frequency 2417 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715207] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715209] cfg80211: Updating information on frequency 2422 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715212] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715215] cfg80211: Updating information on frequency 2427 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715218] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715221] cfg80211: Updating information on frequency 2432 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715224] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715226] cfg80211: Updating information on frequency 2437 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715229] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715232] cfg80211: Updating information on frequency 2442 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715235] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715238] cfg80211: Updating information on frequency 2447 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715241] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715243] cfg80211: Updating information on frequency 2452 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715246] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715249] cfg80211: Updating information on frequency 2457 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715252] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715255] cfg80211: Updating information on frequency 2462 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715257] cfg80211: 2402000 KHz - 2472000 KHz @  KHz), (300 mBi, 2700 mBm)
  [ 5707.715260] cfg80211: Disabling freq 2467 MHz
  [ 5707.715262] cfg80211: Disabling freq 2472 MHz
  [ 5707.715264] cfg80211: Updating information on frequency 5180 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715267] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5707.715270] cfg80211: Updating information on frequency 5200 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715273] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5707.715275] cfg80211: Updating information on frequency 5220 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715278] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5707.715281] cfg80211: Updating information on frequency 5240 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715284] cfg80211: 5170000 KHz - 5250000 KHz @  KHz), (300 mBi, 1700 mBm)
  [ 5707.715287] cfg80211: Updating information on frequency 5260 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715290] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715292] cfg80211: Updating information on frequency 5280 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715295] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715298] cfg80211: Updating information on frequency 5300 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715301] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715303] cfg80211: Updating information on frequency 5320 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715306] cfg80211: 5250000 KHz - 5330000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715308] cfg80211: Updating information on frequency 5500 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715311] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715313] cfg80211: Updating information on frequency 5520 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715315] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715318] cfg80211: Updating information on frequency 5540 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715320] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715322] cfg80211: Updating information on frequency 5560 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715325] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715327] cfg80211: Updating information on frequency 5580 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715330] cfg80211: 5490000 KHz - 5600000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715332] cfg80211: Disabling freq 5600 MHz
  [ 5707.715333] cfg80211: Disabling freq 5620 MHz
  [ 5707.715335] cfg80211: Disabling freq 5640 MHz
  [ 5707.715337] cfg80211: Updating information on frequency 5660 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715340] cfg80211: 5650000 KHz - 5710000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715343] cfg80211: Updating information on frequency 5680 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715346] cfg80211: 5650000 KHz - 5710000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715348] cfg80211: Updating information on frequency 5700 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715351] cfg80211: 5650000 KHz - 5710000 KHz @  KHz), (300 mBi, 2000 mBm)
  [ 5707.715354] cfg80211: Updating information on frequency 5745 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715357] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5707.715359] cfg80211: Updating information on frequency 5765 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715362] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5707.715365] cfg80211: Updating information on frequency 5785 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715368] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5707.715370] cfg80211: Updating information on frequency 5805 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715373] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5707.715376] cfg80211: Updating information on frequency 5825 MHz for a 20 MHz width channel with regulatory rule:
  [ 5707.715379] cfg80211: 5735000 KHz - 5835000 KHz @  KHz), (300 mBi, 3000 mBm)
  [ 5707.715385] cfg80211: Regulatory domain changed to country: US
  [ 5707.715387] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
  [ 5707.715390] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
  [ 5707.715393] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
  [ 5707.715395] cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5707.715398] cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5707.715401] cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
  [ 5707.715404] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
  [ 5730.464633] iwlagn 0000:01:00.0: iwlagn_tx_agg_start on ra = 00:22:75:29:ec:61 tid = 0

  Now removing the module and reloading it with "11n_disable=1" seems to
  fix things - no packet loss and ping times slightly lower.

  wlan1     IEEE 802.11abg  ESSID:"star-local"  
            Mode:Managed  Frequency:2.412 GHz  Access Point: 00:22:75:29:EC:61   
            Bit Rate=54 Mb/s   Tx-Power=15 dBm   
            Retry  long limit:7   RTS thr:off   Fragment thr:off
            Power Management:off
            Link Quality=49/70  Signal level=-61 dBm  
            Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
            Tx excessive retries:0  Invalid misc:32   Missed beacon:0

  $ ping -c 20 192.168.2.1
  PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.
  64 bytes from 192.168.2.1: icmp_req=1 ttl=64 time=1.82 ms
  64 bytes from 192.168.2.1: icmp_req=2 ttl=64 time=1.17 ms
  64 bytes from 192.168.2.1: icmp_req=3 ttl=64 time=1.80 ms
  64 bytes from 192.168.2.1: icmp_req=4 ttl=64 time=0.650 ms
  64 bytes from 192.168.2.1: icmp_req=5 ttl=64 time=1.52 ms
  64 bytes from 192.168.2.1: icmp_req=6 ttl=64 time=2.29 ms
  64 bytes from 192.168.2.1: icmp_req=7 ttl=64 time=1.29 ms
  64 bytes from 192.168.2.1: icmp_req=8 ttl=64 time=1.65 ms
  64 bytes from 192.168.2.1: icmp_req=9 ttl=64 time=1.70 ms
  64 bytes from 192.168.2.1: icmp_req=10 ttl=64 time=1.06 ms
  64 bytes from 192.168.2.1: icmp_req=11 ttl=64 time=1.52 ms
  64 bytes from 192.168.2.1: icmp_req=12 ttl=64 time=1.49 ms
  64 bytes from 192.168.2.1: icmp_req=13 ttl=64 time=1.89 ms
  64 bytes from 192.168.2.1: icmp_req=14 ttl=64 time=1.46 ms
  64 bytes from 192.168.2.1: icmp_req=15 ttl=64 time=1.41 ms
  64 bytes from 192.168.2.1: icmp_req=16 ttl=64 time=1.28 ms
  64 bytes from 192.168.2.1: icmp_req=17 ttl=64 time=1.40 ms
  64 bytes from 192.168.2.1: icmp_req=18 ttl=64 time=0.946 ms
  64 bytes from 192.168.2.1: icmp_req=19 ttl=64 time=1.32 ms
  64 bytes from 192.168.2.1: icmp_req=20 ttl=64 time=1.32 ms

  --- 192.168.2.1 ping statistics ---
  20 packets transmitted, 20 received, 0% packet loss, time 19026ms
  rtt min/avg/max/mdev = 0.650/1.453/2.291/0.356 ms

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-9-generic 3.0.0-9.14
  ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
  Uname: Linux 3.0.0-9-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC269VB Analog [ALC269VB Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  hloeung    2208 F.... pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xc0700000 irq 48'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:10ec0269,144dc098,00100100 HDA:80862805,80860101,00100000'
     Controls      : 18
     Simple ctrls  : 10
  Date: Tue Aug 30 09:21:33 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
  ProcEnviron:
   LANGUAGE=en_AU:en_GB:en
   PATH=(custom, no user)
   LANG=en_AU.UTF-8
   LC_MESSAGES=en_AU.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.0.0-9-generic root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro elevator=deadline apparmor=0 quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-9-generic N/A
   linux-backports-modules-3.0.0-9-generic  N/A
   linux-firmware                           1.60
  RfKill:
   7: phy7: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: Upgraded to oneiric on 2011-08-08 (21 days ago)
  dmi.bios.date: 03/08/2011
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 04HL
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 90X3A
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 90X3A
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  --- 
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  hloeung    1724 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro quiet splash elevator=noop apparmor=0 pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1 intel_pstate=enable zswap.enabled=1 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-7-generic N/A
   linux-backports-modules-3.11.0-7-generic  N/A
   linux-firmware                            1.113
  StagingDrivers: zram
  Tags:  saucy staging
  Uname: Linux 3.11.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin audio cdrom dialout libvirtd lpadmin netdev plugdev sambashare users video
  dmi.bios.date: 03/08/2011
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 04HL
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 90X3A
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 90X3A
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
  --- 
  ApportVersion: 2.12.1-0ubuntu3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  hloeung    1724 F.... pulseaudio
  DistroRelease: Ubuntu 13.10
  Lsusb:
   Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: SAMSUNG ELECTRONICS CO., LTD. 90X3A
  MarkForUpload: True
  Package: linux
  PackageArchitecture: amd64
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-7-generic root=UUID=b4df4065-2b5c-4a10-9c50-4d01d05d09c3 ro quiet splash elevator=noop apparmor=0 pcie_aspm=force i915.i915_enable_rc6=7 i915.i915_enable_fbc=1 i915.lvds_downclock=1 drm.vblankoffdelay=1 intel_pstate=enable zswap.enabled=1 vt.handoff=7
  ProcVersionSignature: Ubuntu 3.11.0-7.13-generic 3.11.0
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-7-generic N/A
   linux-backports-modules-3.11.0-7-generic  N/A
   linux-firmware                            1.113
  StagingDrivers: zram
  Tags:  saucy staging
  Uname: Linux 3.11.0-7-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm admin audio cdrom dialout libvirtd lpadmin netdev plugdev sambashare users video
  dmi.bios.date: 03/08/2011
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: 04HL
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: 90X3A
  dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.board.version: FAB1
  dmi.chassis.asset.tag: Asset Tag
  dmi.chassis.type: 9
  dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
  dmi.chassis.version: 0.1
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvr04HL:bd03/08/2011:svnSAMSUNGELECTRONICSCO.,LTD.:pn90X3A:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn90X3A:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
  dmi.product.name: 90X3A
  dmi.product.version: 0.1
  dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.

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