iwlwifi bug

[Daniel Chyan <dchyan@xxxxxxxxxxxxx>]

Hi Linux Wireless,

I believe there is a bug within iwlwifi aggregation. I am on the
latest build (2012-04-23). Here is the dmesg output:

[  272.093668] ------------[ cut here ]------------
[  272.093711] WARNING: at
/home/foo/bar/compat-wireless-2012-04-23/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c:493
iwl_trans_pcie_tx_agg_disable+0x101/0x110 [iwlwifi]()
[  272.093719] Hardware name: 4177CTO
[  272.093722] queue 11 not used
[  272.093725] Modules linked in: parport_pc ppdev bnep rfcomm
bluetooth snd_hda_codec_hdmi snd_hda_codec_conexant speedstep_lib
binfmt_misc i915 uvcvideo psmouse snd_hda_intel snd_hda_codec arc4
snd_hwdep snd_pcm snd_seq_midi drm_kms_helper snd_rawmidi drm videodev
v4l2_compat_ioctl32 i2c_algo_bit serio_raw snd_seq_midi_event mei(C)
iwlwifi wmi snd_seq thinkpad_acpi snd_timer snd_seq_device tpm_tis
nvram lp video parport snd mac80211 cfg80211 compat soundcore
snd_page_alloc firewire_ohci sdhci_pci sdhci firewire_core crc_itu_t
ahci libahci e1000e
[  272.093803] Pid: 252, comm: kworker/u:4 Tainted: G         C
3.0.0-17-generic #30-Ubuntu
[  272.093808] Call Trace:
[  272.093823]  [<ffffffff8105e8ff>] warn_slowpath_common+0x7f/0xc0
[  272.093831]  [<ffffffff8105e9f6>] warn_slowpath_fmt+0x46/0x50
[  272.093855]  [<ffffffffa02127c1>]
iwl_trans_pcie_tx_agg_disable+0x101/0x110 [iwlwifi]
[  272.093874]  [<ffffffffa01f37a3>] iwlagn_tx_agg_stop+0x243/0x320 [iwlwifi]
[  272.093893]  [<ffffffffa01efd9b>]
iwlagn_mac_ampdu_action+0x15b/0x330 [iwlwifi]
[  272.093902]  [<ffffffff815f0f6d>] ? wait_for_completion+0x1d/0x20
[  272.093931]  [<ffffffffa00db31b>]
___ieee80211_stop_tx_ba_session+0x12b/0x2b0 [mac80211]
[  272.093956]  [<ffffffffa00da2bf>]
ieee80211_ba_session_work+0x10f/0x180 [mac80211]
[  272.093980]  [<ffffffffa00da1b0>] ?
ieee80211_sta_tear_down_BA_sessions+0x70/0x70 [mac80211]
[  272.093988]  [<ffffffff8107c10a>] process_one_work+0x11a/0x480
[  272.093995]  [<ffffffff8107ceb5>] worker_thread+0x165/0x370
[  272.094002]  [<ffffffff8107cd50>] ? manage_workers.isra.30+0x130/0x130
[  272.094010]  [<ffffffff8108135c>] kthread+0x8c/0xa0
[  272.094019]  [<ffffffff815fc464>] kernel_thread_helper+0x4/0x10
[  272.094027]  [<ffffffff810812d0>] ? flush_kthread_worker+0xa0/0xa0
[  272.094035]  [<ffffffff815fc460>] ? gs_change+0x13/0x13
[  272.094040] ---[ end trace 64687a3e121543d5 ]---

Thanks,
Daniel
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