Serious problems with wlan (iwl3945) since ubuntu 8.04 (also 8.10)

[8200]

I am using ubuntu (i386) since 6.06 on my acer asprie 5610 laptop.
Wlan always worked fine on it but since ubuntu 8.04 and probably the new networkmanager it's a big problem.

Today I am using ubuntu 8.10 with all latest updates.
When wlan is activated and in use there are four very serious problems:

1. When there is no input from me via mouse/touchpad/keyboard the whole system is getting mostly slower and even sometimes pauses (even a simple ping pauses)
2. After about a few hours uptime the kernel panics - numpad blinking
3. Wlan is significant slower (even a simple ping) then on windows or on other notebooks with also 802.11g
4. Wlan is significant unstable compared to windows or other notebooks

lspci | grep Network
05:00.0 Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02)

lsmod | grep iwl3945
iwl3945 96920 0
rfkill 17176 2 iwl3945
lbm_cw_mac80211 215856 1 iwl3945
lib80211 15236 1 iwl3945
lbm_cw_cfg80211 46744 2 iwl3945,lbm_cw_mac80211
led_class 12164 2 acer_wmi,iwl3945

Recently before the last kernel panic the following was in /var/log/messages
Feb 3 18:59:59 a-t2050 kernel: [ 1620.476784] Registered led device: iwl-phy0:radio
Feb 3 18:59:59 a-t2050 kernel: [ 1620.476880] Registered led device: iwl-phy0:assoc
Feb 3 18:59:59 a-t2050 kernel: [ 1620.476926] Registered led device: iwl-phy0:RX
Feb 3 18:59:59 a-t2050 kernel: [ 1620.476967] Registered led device: iwl-phy0:TX
Feb 3 19:06:19 a-t2050 kernel: [ 2001.092368] Registered led device: iwl-phy0:radio
Feb 3 19:06:19 a-t2050 kernel: [ 2001.092465] Registered led device: iwl-phy0:assoc
Feb 3 19:06:19 a-t2050 kernel: [ 2001.092512] Registered led device: iwl-phy0:RX
Feb 3 19:06:19 a-t2050 kernel: [ 2001.092558] Registered led device: iwl-phy0:TX
Feb 3 19:07:11 a-t2050 kernel: [ 2052.876683] Registered led device: iwl-phy0:radio
Feb 3 19:07:11 a-t2050 kernel: [ 2052.876782] Registered led device: iwl-phy0:assoc
Feb 3 19:07:11 a-t2050 kernel: [ 2052.876830] Registered led device: iwl-phy0:RX
Feb 3 19:07:11 a-t2050 kernel: [ 2052.876873] Registered led device: iwl-phy0:TX
Feb 3 19:15:48 a-t2050 kernel: [ 2569.327133] Registered led device: iwl-phy0:radio
Feb 3 19:15:48 a-t2050 kernel: [ 2569.327247] Registered led device: iwl-phy0:assoc
Feb 3 19:15:48 a-t2050 kernel: [ 2569.327293] Registered led device: iwl-phy0:RX
Feb 3 19:15:48 a-t2050 kernel: [ 2569.327342] Registered led device: iwl-phy0:TX
Feb 3 19:15:50 a-t2050 kernel: [ 2571.317224] Registered led device: iwl-phy0:radio
Feb 3 19:15:50 a-t2050 kernel: [ 2571.317319] Registered led device: iwl-phy0:assoc
Feb 3 19:15:50 a-t2050 kernel: [ 2571.317362] Registered led device: iwl-phy0:RX
Feb 3 19:15:50 a-t2050 kernel: [ 2571.317403] Registered led device: iwl-phy0:TX
Feb 3 19:16:13 a-t2050 kernel: [ 2594.826060] Registered led device: iwl-phy0:radio
Feb 3 19:16:13 a-t2050 kernel: [ 2594.826156] Registered led device: iwl-phy0:assoc
Feb 3 19:16:13 a-t2050 kernel: [ 2594.826201] Registered led device: iwl-phy0:RX
Feb 3 19:16:13 a-t2050 kernel: [ 2594.826244] Registered led device: iwl-phy0:TX
Feb 3 19:16:15 a-t2050 kernel: [ 2596.973218] Registered led device: iwl-phy0:radio
Feb 3 19:16:15 a-t2050 kernel: [ 2596.973313] Registered led device: iwl-phy0:assoc
Feb 3 19:16:15 a-t2050 kernel: [ 2596.973356] Registered led device: iwl-phy0:RX
Feb 3 19:16:15 a-t2050 kernel: [ 2596.973398] Registered led device: iwl-phy0:TX
Feb 3 19:17:04 a-t2050 kernel: [ 2645.320491] Registered led device: iwl-phy0:radio
Feb 3 19:17:04 a-t2050 kernel: [ 2645.320589] Registered led device: iwl-phy0:assoc
Feb 3 19:17:04 a-t2050 kernel: [ 2645.320637] Registered led device: iwl-phy0:RX
Feb 3 19:17:04 a-t2050 kernel: [ 2645.320688] Registered led device: iwl-phy0:TX
Feb 3 19:20:21 a-t2050 kernel: [ 2842.776221] Registered led device: iwl-phy0:radio
Feb 3 19:20:21 a-t2050 kernel: [ 2842.776317] Registered led device: iwl-phy0:assoc
Feb 3 19:20:21 a-t2050 kernel: [ 2842.776361] Registered led device: iwl-phy0:RX
Feb 3 19:20:21 a-t2050 kernel: [ 2842.776403] Registered led device: iwl-phy0:TX
Feb 3 19:23:45 a-t2050 kernel: [ 3046.816796] Registered led device: iwl-phy0:radio
Feb 3 19:23:45 a-t2050 kernel: [ 3046.816894] Registered led device: iwl-phy0:assoc
Feb 3 19:23:45 a-t2050 kernel: [ 3046.816941] Registered led device: iwl-phy0:RX
Feb 3 19:23:45 a-t2050 kernel: [ 3046.816990] Registered led device: iwl-phy0:TX
Feb 3 19:32:58 a-t2050 kernel: [ 3599.325291] Registered led device: iwl-phy0:radio
Feb 3 19:32:58 a-t2050 kernel: [ 3599.325389] Registered led device: iwl-phy0:assoc
Feb 3 19:32:58 a-t2050 kernel: [ 3599.325433] Registered led device: iwl-phy0:RX
Feb 3 19:32:58 a-t2050 kernel: [ 3599.325479] Registered led device: iwl-phy0:TX
Feb 3 19:33:25 a-t2050 kernel: [ 3626.568190] Registered led device: iwl-phy0:radio
Feb 3 19:33:25 a-t2050 kernel: [ 3626.568285] Registered led device: iwl-phy0:assoc
Feb 3 19:33:25 a-t2050 kernel: [ 3626.568329] Registered led device: iwl-phy0:RX
Feb 3 19:33:25 a-t2050 kernel: [ 3626.568371] Registered led device: iwl-phy0:TX
Feb 3 19:37:41 a-t2050 kernel: [ 3882.576776] Registered led device: iwl-phy0:radio
Feb 3 19:37:41 a-t2050 kernel: [ 3882.576875] Registered led device: iwl-phy0:assoc
Feb 3 19:37:41 a-t2050 kernel: [ 3882.576918] Registered led device: iwl-phy0:RX
Feb 3 19:37:41 a-t2050 kernel: [ 3882.576965] Registered led device: iwl-phy0:TX
Feb 3 19:39:51 a-t2050 kernel: [ 4012.685174] Registered led device: iwl-phy0:radio
Feb 3 19:39:51 a-t2050 kernel: [ 4012.685269] Registered led device: iwl-phy0:assoc
Feb 3 19:39:51 a-t2050 kernel: [ 4012.685314] Registered led device: iwl-phy0:RX
Feb 3 19:39:51 a-t2050 kernel: [ 4012.685356] Registered led device: iwl-phy0:TX
Feb 3 19:40:46 a-t2050 kernel: [ 4067.816188] Registered led device: iwl-phy0:radio
Feb 3 19:40:46 a-t2050 kernel: [ 4067.816285] Registered led device: iwl-phy0:assoc
Feb 3 19:40:46 a-t2050 kernel: [ 4067.816328] Registered led device: iwl-phy0:RX
Feb 3 19:40:46 a-t2050 kernel: [ 4067.816373] Registered led device: iwl-phy0:TX
Feb 3 19:41:59 a-t2050 kernel: [ 4140.689460] Registered led device: iwl-phy0:radio
Feb 3 19:41:59 a-t2050 kernel: [ 4140.689559] Registered led device: iwl-phy0:assoc
Feb 3 19:41:59 a-t2050 kernel: [ 4140.689603] Registered led device: iwl-phy0:RX
Feb 3 19:41:59 a-t2050 kernel: [ 4140.689645] Registered led device: iwl-phy0:TX
Feb 3 19:42:01 a-t2050 kernel: [ 4142.476679] Registered led device: iwl-phy0:radio
Feb 3 19:42:01 a-t2050 kernel: [ 4142.476775] Registered led device: iwl-phy0:assoc
Feb 3 19:42:01 a-t2050 kernel: [ 4142.476821] Registered led device: iwl-phy0:RX
Feb 3 19:42:01 a-t2050 kernel: [ 4142.476864] Registered led device: iwl-phy0:TX
Feb 3 19:46:13 a-t2050 kernel: [ 4394.719201] Registered led device: iwl-phy0:radio
Feb 3 19:46:13 a-t2050 kernel: [ 4394.719300] Registered led device: iwl-phy0:assoc
Feb 3 19:46:13 a-t2050 kernel: [ 4394.719347] Registered led device: iwl-phy0:RX
Feb 3 19:46:13 a-t2050 kernel: [ 4394.719393] Registered led device: iwl-phy0:TX
Feb 3 19:47:11 a-t2050 kernel: [ 4452.648658] Registered led device: iwl-phy0:radio
Feb 3 19:47:11 a-t2050 kernel: [ 4452.648754] Registered led device: iwl-phy0:assoc
Feb 3 19:47:11 a-t2050 kernel: [ 4452.648803] Registered led device: iwl-phy0:RX
Feb 3 19:47:11 a-t2050 kernel: [ 4452.648848] Registered led device: iwl-phy0:TX
Feb 3 19:47:50 a-t2050 kernel: [ 4491.320191] Registered led device: iwl-phy0:radio
Feb 3 19:47:50 a-t2050 kernel: [ 4491.320291] Registered led device: iwl-phy0:assoc
Feb 3 19:47:50 a-t2050 kernel: [ 4491.320339] Registered led device: iwl-phy0:RX
Feb 3 19:47:50 a-t2050 kernel: [ 4491.320386] Registered led device: iwl-phy0:TX
Feb 3 19:49:27 a-t2050 kernel: [ 4589.001348] Registered led device: iwl-phy0:radio
Feb 3 19:49:27 a-t2050 kernel: [ 4589.001443] Registered led device: iwl-phy0:assoc
Feb 3 19:49:27 a-t2050 kernel: [ 4589.001490] Registered led device: iwl-phy0:RX
Feb 3 19:49:27 a-t2050 kernel: [ 4589.001531] Registered led device: iwl-phy0:TX
Feb 3 19:51:18 a-t2050 kernel: [ 4699.324803] Registered led device: iwl-phy0:radio
Feb 3 19:51:18 a-t2050 kernel: [ 4699.324900] Registered led device: iwl-phy0:assoc
Feb 3 19:51:18 a-t2050 kernel: [ 4699.324943] Registered led device: iwl-phy0:RX
Feb 3 19:51:18 a-t2050 kernel: [ 4699.324993] Registered led device: iwl-phy0:TX
Feb 3 19:51:37 a-t2050 kernel: [ 4718.444640] Registered led device: iwl-phy0:radio
Feb 3 19:51:37 a-t2050 kernel: [ 4718.444754] Registered led device: iwl-phy0:assoc
Feb 3 19:51:37 a-t2050 kernel: [ 4718.444800] Registered led device: iwl-phy0:RX
Feb 3 19:51:37 a-t2050 kernel: [ 4718.444860] Registered led device: iwl-phy0:TX
Feb 3 19:58:13 a-t2050 kernel: [ 5114.554011] Registered led device: iwl-phy0:radio
Feb 3 19:58:13 a-t2050 kernel: [ 5114.554108] Registered led device: iwl-phy0:assoc
Feb 3 19:58:13 a-t2050 kernel: [ 5114.554151] Registered led device: iwl-phy0:RX
Feb 3 19:58:13 a-t2050 kernel: [ 5114.554198] Registered led device: iwl-phy0:TX
Feb 3 20:00:19 a-t2050 kernel: [ 5240.576215] Registered led device: iwl-phy0:radio
Feb 3 20:00:19 a-t2050 kernel: [ 5240.576310] Registered led device: iwl-phy0:assoc
Feb 3 20:00:19 a-t2050 kernel: [ 5240.576353] Registered led device: iwl-phy0:RX
Feb 3 20:00:19 a-t2050 kernel: [ 5240.576397] Registered led device: iwl-phy0:TX
Feb 3 20:02:23 a-t2050 kernel: [ 5365.000418] Registered led device: iwl-phy0:radio
Feb 3 20:02:23 a-t2050 kernel: [ 5365.001436] Registered led device: iwl-phy0:assoc
Feb 3 20:02:23 a-t2050 kernel: [ 5365.002361] Registered led device: iwl-phy0:RX
Feb 3 20:02:23 a-t2050 kernel: [ 5365.003240] Registered led device: iwl-phy0:TX
Feb 3 20:08:16 a-t2050 kernel: [ 5717.377327] Registered led device: iwl-phy0:radio
Feb 3 20:08:16 a-t2050 kernel: [ 5717.377746] Registered led device: iwl-phy0:assoc
Feb 3 20:08:16 a-t2050 kernel: [ 5717.378058] Registered led device: iwl-phy0:RX
Feb 3 20:08:16 a-t2050 kernel: [ 5717.378936] Registered led device: iwl-phy0:TX
Feb 3 20:12:18 a-t2050 kernel: [ 5959.317351] Registered led device: iwl-phy0:radio
Feb 3 20:12:18 a-t2050 kernel: [ 5959.317775] Registered led device: iwl-phy0:assoc
Feb 3 20:12:18 a-t2050 kernel: [ 5959.318087] Registered led device: iwl-phy0:RX
Feb 3 20:12:18 a-t2050 kernel: [ 5959.318970] Registered led device: iwl-phy0:TX
Feb 3 20:18:33 a-t2050 kernel: [ 6334.521404] Registered led device: iwl-phy0:radio
Feb 3 20:18:33 a-t2050 kernel: [ 6334.521964] Registered led device: iwl-phy0:assoc
Feb 3 20:18:33 a-t2050 kernel: [ 6334.522360] Registered led device: iwl-phy0:RX
Feb 3 20:18:33 a-t2050 kernel: [ 6334.522739] Registered led device: iwl-phy0:TX
Feb 3 20:19:37 a-t2050 kernel: [ 6398.616793] Registered led device: iwl-phy0:radio
Feb 3 20:19:37 a-t2050 kernel: [ 6398.617350] Registered led device: iwl-phy0:assoc
Feb 3 20:19:37 a-t2050 kernel: [ 6398.617750] Registered led device: iwl-phy0:RX
Feb 3 20:19:37 a-t2050 kernel: [ 6398.618709] Registered led device: iwl-phy0:TX
Feb 3 20:20:58 a-t2050 kernel: [ 6479.828320] Registered led device: iwl-phy0:radio
Feb 3 20:20:58 a-t2050 kernel: [ 6479.829499] Registered led device: iwl-phy0:assoc
Feb 3 20:20:58 a-t2050 kernel: [ 6479.830504] Registered led device: iwl-phy0:RX
Feb 3 20:20:58 a-t2050 kernel: [ 6479.831458] Registered led device: iwl-phy0:TX
Feb 3 20:23:18 a-t2050 kernel: [ 6619.544338] Registered led device: iwl-phy0:radio
Feb 3 20:23:18 a-t2050 kernel: [ 6619.545538] Registered led device: iwl-phy0:assoc
Feb 3 20:23:18 a-t2050 kernel: [ 6619.546544] Registered led device: iwl-phy0:RX
Feb 3 20:23:18 a-t2050 kernel: [ 6619.547509] Registered led device: iwl-phy0:TX
Feb 3 20:27:09 a-t2050 kernel: [ 6850.993184] Registered led device: iwl-phy0:radio
Feb 3 20:27:09 a-t2050 kernel: [ 6850.993730] Registered led device: iwl-phy0:assoc
Feb 3 20:27:09 a-t2050 kernel: [ 6850.994124] Registered led device: iwl-phy0:RX
Feb 3 20:27:09 a-t2050 kernel: [ 6850.995073] Registered led device: iwl-phy0:TX
Feb 3 20:29:15 a-t2050 kernel: [ 6976.996792] Registered led device: iwl-phy0:radio
Feb 3 20:29:15 a-t2050 kernel: [ 6976.997941] Registered led device: iwl-phy0:assoc
Feb 3 20:29:15 a-t2050 kernel: [ 6976.998950] Registered led device: iwl-phy0:RX
Feb 3 20:29:15 a-t2050 kernel: [ 6976.999925] Registered led device: iwl-phy0:TX
Feb 3 20:31:59 a-t2050 kernel: [ 7141.088427] Registered led device: iwl-phy0:radio
Feb 3 20:31:59 a-t2050 kernel: [ 7141.088850] Registered led device: iwl-phy0:assoc
Feb 3 20:31:59 a-t2050 kernel: [ 7141.089163] Registered led device: iwl-phy0:RX
Feb 3 20:31:59 a-t2050 kernel: [ 7141.090042] Registered led device: iwl-phy0:TX
Feb 3 20:33:31 a-t2050 kernel: [ 7232.512215] Registered led device: iwl-phy0:radio
Feb 3 20:33:31 a-t2050 kernel: [ 7232.514354] Registered led device: iwl-phy0:assoc
Feb 3 20:33:31 a-t2050 kernel: [ 7232.515424] Registered led device: iwl-phy0:RX
Feb 3 20:33:31 a-t2050 kernel: [ 7232.516433] Registered led device: iwl-phy0:TX
Feb 3 20:34:35 a-t2050 kernel: [ 7296.769192] Registered led device: iwl-phy0:radio
Feb 3 20:34:35 a-t2050 kernel: [ 7296.769739] Registered led device: iwl-phy0:assoc
Feb 3 20:34:35 a-t2050 kernel: [ 7296.770133] Registered led device: iwl-phy0:RX
Feb 3 20:34:35 a-t2050 kernel: [ 7296.770512] Registered led device: iwl-phy0:TX
Feb 3 20:43:01 a-t2050 kernel: [ 7802.957270] Registered led device: iwl-phy0:radio
Feb 3 20:43:01 a-t2050 kernel: [ 7802.957833] Registered led device: iwl-phy0:assoc
Feb 3 20:43:01 a-t2050 kernel: [ 7802.958240] Registered led device: iwl-phy0:RX
Feb 3 20:43:01 a-t2050 kernel: [ 7802.958619] Registered led device: iwl-phy0:TX

[Florian Diesch (diesch)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it without more information.

Please include the following additional information, if you have not already done so (pay attention to lspci's additional options), as required by the Ubuntu Kernel Team:
1. Please include the output of the command "uname -a" in your next response. It should be one, long line of text which includes the exact kernel version you're running, as well as the CPU architecture.
2. Please run the command "dmesg > dmesg.log" after a fresh boot and attach the resulting file "dmesg.log" to this bug report.
3. Please run the command "sudo lspci -vvnn > lspci-vvnn.log" and attach the resulting file "lspci-vvnn.log" to this bug report.

For your reference, the full description of procedures for kernel-related bug reports is available at https://wiki.ubuntu.com/KernelTeamBugPolicies Thanks in advance!

[8200 (8200)]

Hi Florian!

Here is the requested information
1. uname -a
Linux kozek-t2050 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686 GNU/Linux

2. the attached dmesg.log reports only cold-startup

[8200 (8200)]

3. lspci-vvnn.log

Regards arthur

[8200 (8200)]

PS: Today I am trying wicd instead so we can determine wheter it is only a networkmanager-problem or something else.

But already yet (using wicd for 10Minutes) I can say that the connection is not as stable as it should be.

[8200 (8200)]

After testing wicd I can say that I had no kernel panic with it. But the connection was also very unstable - after about 30minutes (varying from 5Minutes to about 2hours) I had to disconnect-connect.

Now I have switched back to network-manager and became very soon a kernel panic. Here is the log of /var/log/messages before the kernel-panic:
Feb 7 19:37:24 a-t2050 -- MARK --
Feb 7 19:42:41 a-t2050 kernel: [ 1603.988151] CE: hpet increasing min_delta_ns to 22500 nsec

[xteejx (xteejx)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. You reported this bug a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue for you. Can you try with the latest Ubuntu release? Thanks in advance.

[xteejx (xteejx)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!