My environment:
Ubuntu 08.10
uname -a: Linux dell5400 2.6.27-9-generic #1 SMP Thu Nov 20 21:57:00 UTC
2008 i686 GNU/Linu
wifie:
ls -la compat-wireless-2009-01-19 -> latest driver
dmesg | grep iwl
dmesg | grep iwl
[ 12.148010] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux,
1.3.27ks
[ 12.148012] iwlagn: Copyright(c) 2003-2008 Intel Corporation
[ 12.148068] iwlagn 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) ->
IRQ 17
[ 12.148076] iwlagn 0000:0c:00.0: setting latency timer to 64
[ 12.148093] iwlagn: Detected Intel Wireless WiFi Link 5300AGN REV=0x24
[ 12.177631] iwlagn: Tunable channels: 13 802.11bg, 24 802.11a channels
[ 12.233747] iwlagn 0000:0c:00.0: PCI INT A disabled
[ 12.234132] phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 33.849292] iwlagn 0000:0c:00.0: PCI INT A -> GSI 17 (level, low) ->
IRQ 17
[ 33.849370] iwlagn 0000:0c:00.0: restoring config space at offset 0x1
(was 0x100102, writing 0x100106)
[ 33.849542] firmware: requesting iwlwifi-5000-1-lbm.ucode
[ 36.301423] Registered led device: iwl-phy0:radio
[ 36.302226] Registered led device: iwl-phy0:assoc
[ 36.302629] Registered led device: iwl-phy0:RX
[ 36.303297] Registered led device: iwl-phy0:TX
dmesg | grep Intel
dmesg | grep Intel
[ 0.342534] CPU0: Intel(R) Core(TM)2 Duo CPU P9500 @ 2.53GHz
stepping 06
[ 0.428944] CPU1: Intel(R) Core(TM)2 Duo CPU P9500 @ 2.53GHz
stepping 06
[ 10.971737] agpgart-intel 0000:00:00.0: Intel Mobile Intel? GM45
Express Chipset
[ 11.686362] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 21 (level, low)
-> IRQ 21
[ 11.686379] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 12.148010] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux,
1.3.27ks
[ 12.148012] iwlagn: Copyright(c) 2003-2008 Intel Corporation
[ 12.148093] iwlagn: Detected Intel Wireless WiFi Link 5300AGN REV=0x24
lsmod | grep iwl
lsmod | grep iwl
iwlagn 99844 0
iwlcore 92672 1 iwlagn
rfkill 17176 2 iwlcore
led_class 12164 1 iwlcore
lbm_cw_mac80211 210728 2 iwlagn,iwlcore
lbm_cw_cfg80211 39696 3 iwlagn,iwlcore,lbm_cw_mac80211
The problems ONLY occur on this kernel version using the latest driver
as mentioned earlier.
A former kernel (2.6.19) as well as the alternative windows installation
do not show any uncommon behavior.
Problem description:
Directly after starting the device, the internet connection is stable.
>From time to time however the connection for at least the http based
protocol as well as the protocol used for mail stops working.
None of the available log-files produce any additional output during
off-time.
A wget request like the following produces:
tmaus@dell5400:~$ wget yahoo.com
--2009-01-27 09:42:47-- http://yahoo.com/
Resolving yahoo.com... 68.180.206.184, 206.190.60.37
Connecting to yahoo.com|68.180.206.184|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: http://www.yahoo.com/ [following]
--2009-01-27 09:42:47-- http://www.yahoo.com/
Resolving http://www.yahoo.com... 87.248.113.14
Connecting to http://www.yahoo.com|87.248.113.14|:80... connected.
HTTP request sent, awaiting response...
where at the same time a ping request produces:
tmaus@dell5400:~$ ping yahoo.com
PING yahoo.com (68.180.206.184) 56(84) bytes of data.
64 bytes from w2.rc.vip.sp1.yahoo.com (68.180.206.184): icmp_seq=1
ttl=49 time=191 ms
64 bytes from w2.rc.vip.sp1.yahoo.com (68.180.206.184): icmp_seq=2
ttl=49 time=189 ms
64 bytes from w2.rc.vip.sp1.yahoo.com (68.180.206.184): icmp_seq=3
ttl=49 time=190 ms
My instant messaging clients do work properly all the time without
exception.
>From my point of view, this must be a bug within the latest driver ...
but as my knowledge on this topic is not deep, I kindly ask you to have
a look at my mail and to respond to me ..
thanks in advance and greetings from berlin
thorsten maus
On Tue, 2009-01-27 at 00:51 -0800, Thorsten Maus wrote:
> Problem description:
> Directly after starting the device, the internet connection is stable.
> From time to time however the connection for at least the http based
> protocol as well as the protocol used for mail stops working.
> None of the available log-files produce any additional output during
> off-time.
Would it be possible to obtain an over the air as well as a local
tcpdump on your wireless interface capture during this time?
Also, when this problem occurs, could you please enable RX and TX
debugging as follows and then rerun your test:
$ echo 0x41843fff > /sys/class/net/wlan0/device/debug_level
This will generate a lot of information. Would it be possible to send
all kernel messages to a file (edit syslog.conf) temporarily to ensure
we get all information?
Thanks
Reinette