[Bug 609802] [NEW] wlan disconnects randomly

[xpingus@web.de]

Public bug reported:

Ubuntu 10.04 (lucid)
2.6.32-23-generic #37-Ubuntu SMP Fri Jun 11 08:03:28 UTC 2010 x86_64 GNU/Linux
Gnome: 2.30.2
gcc: 4.4.3 (x86_64-linux-gnu)

Lenovo Thinkpad SL510
---------------------------------------
error description:
wlan disconects from time to time (unstable); time between errors some minutes ... hours; gnome wlan manager
does not recognize about this; after reconnecting everything works fine again;

Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623623] ------------[ cut here ]------------
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623654] WARNING: at /build/buildd/linux-2.6.32/net/mac80211/agg-tx.c:150 ___ieee80211_stop_tx_ba_session+0x82/0x90 [mac80211]()
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623659] Hardware name: 28477MG
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623661] Modules linked in: cryptd aes_x86_64 aes_generic binfmt_misc rfcomm ppdev sco bridge stp bnep l2cap joydev snd_hda_codec_intelhdmi snd_hda_codec_realtek dm_crypt snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss arc4 snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi iwlagn snd_seq_midi_event snd_seq iwlcore snd_timer snd_seq_device uvcvideo videodev v4l1_compat v4l2_compat_ioctl32 mac80211 btusb jmb38x_ms snd bluetooth sdhci_pci sdhci snd_page_alloc cfg80211 soundcore led_class nvram memstick psmouse serio_raw lp parport fbcon tileblit font bitblit softcursor vga16fb vgastate i915 drm_kms_helper r8169 mii ahci intel_agp drm i2c_algo_bit video output
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623747] Pid: 9, comm: events/0 Not tainted 2.6.32-23-generic #37-Ubuntu
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623751] Call Trace:
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623764]  [<ffffffff81066dbb>] warn_slowpath_common+0x7b/0xc0
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623771]  [<ffffffff81066e14>] warn_slowpath_null+0x14/0x20
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623785]  [<ffffffffa01d7922>] ___ieee80211_stop_tx_ba_session+0x82/0x90 [mac80211]
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623800]  [<ffffffffa01d7abf>] __ieee80211_stop_tx_ba_session+0x7f/0x90 [mac80211]
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623815]  [<ffffffffa01d7267>] ieee80211_sta_tear_down_BA_sessions+0x27/0x50 [mac80211]
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623833]  [<ffffffffa01ec1a8>] ieee80211_reconfig+0x378/0x460 [mac80211]
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623847]  [<ffffffffa01d24c0>] ? ieee80211_restart_work+0x0/0x30 [mac80211]
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623859]  [<ffffffffa01d24e2>] ieee80211_restart_work+0x22/0x30 [mac80211]
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623867]  [<ffffffff81080867>] run_workqueue+0xc7/0x1a0
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623872]  [<ffffffff810809e3>] worker_thread+0xa3/0x110
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623878]  [<ffffffff81085430>] ? autoremove_wake_function+0x0/0x40
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623884]  [<ffffffff81080940>] ? worker_thread+0x0/0x110
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623889]  [<ffffffff810850b6>] kthread+0x96/0xa0
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623895]  [<ffffffff810141ea>] child_rip+0xa/0x20
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623901]  [<ffffffff81085020>] ? kthread+0x0/0xa0
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623905]  [<ffffffff810141e0>] ? child_rip+0x0/0x20
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623909] ---[ end trace 4b18e95cf4c6a42e ]---
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623929] iwlagn 0000:05:00.0: Stopping AGG while state not ON or starting
Jul 25 01:31:50 pinguin-laptop kernel: [ 2872.623938] ------------[ cut here ]------------

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

-- 
wlan disconnects randomly
https://bugs.launchpad.net/bugs/609802
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