Return-path: Received: from mail-qy0-f181.google.com ([209.85.216.181]:43158 "EHLO mail-qy0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751094Ab1I3XmS (ORCPT ); Fri, 30 Sep 2011 19:42:18 -0400 Received: by qyk7 with SMTP id 7so2373217qyk.19 for ; Fri, 30 Sep 2011 16:42:17 -0700 (PDT) MIME-Version: 1.0 From: "Luis R. Rodriguez" Date: Fri, 30 Sep 2011 16:41:57 -0700 Message-ID: (sfid-20111001_014222_997651_D5531705) Subject: iwlagn rmmod BUG iwlagn_dev_cmd: Objects remaining on kmem_cache_close() To: linux-wireless Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: While I rmmod iwlagn, I get this. mcgrof@tux ~ $ uname -r 3.1.0-rc5-wl+ [ 18.925738] iwlagn 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532 [ 18.928240] Registered led device: phy0-led [ 18.928533] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 18.929829] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' [ 18.941901] input: ThinkPad Extra Buttons as /devices/platform/thinkpad_acpi/input/input9 [ 19.016856] udev[382]: renamed network interface wlan0 to wlan8 [ 19.019627] iwlagn 0000:03:00.0: L1 Disabled; Enabling L0S [ 19.019755] iwlagn 0000:03:00.0: Radio type=0x1-0x3-0x1 [ 19.257317] iwlagn 0000:03:00.0: L1 Disabled; Enabling L0S [ 19.257447] iwlagn 0000:03:00.0: Radio type=0x1-0x3-0x1 [ 19.352187] ieee80211 phy0: device now idle [ 19.365350] ADDRCONF(NETDEV_UP): wlan8: link is not ready [ 19.429844] ieee80211 phy0: device no longer idle - scanning [ 20.346536] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,user_xattr,commit=0 [ 20.395747] checking generic (d0000000 3f0000) vs hw (d0000000 10000000) [ 20.395750] fb: conflicting fb hw usage inteldrmfb vs VESA VGA - removing generic driver [ 20.395920] Console: switching to colour dummy device 80x25 [ 20.397297] fbcon: inteldrmfb (fb0) is primary device [ 20.397865] Console: switching to colour frame buffer device 180x56 [ 20.397872] fb0: inteldrmfb frame buffer device [ 20.397873] drm: registered panic notifier [ 20.627535] acpi device:02: registered as cooling_device4 [ 20.655823] input: Video Bus as /devices/LNXSYSTM:00/device:00/PNP0A08:00/LNXVIDEO:00/input/input10 [ 20.656457] ACPI: Video Device [VID] (multi-head: yes rom: no post: no) [ 20.657053] [drm] Initialized i915 1.6.0 20080730 for 0000:00:02.0 on minor 0 [ 20.770262] ppdev: user-space parallel port driver [ 22.085036] cfg80211: Found new beacon on frequency: 5745 MHz (Ch 149) on phy0 [ 22.567306] ieee80211 phy0: device now idle [ 25.135394] IBM TrackPoint firmware: 0x0e, buttons: 3/3 [ 25.392278] input: TPPS/2 IBM TrackPoint as /devices/platform/i8042/serio1/serio2/input/input11 [ 35.114291] hda-intel: Invalid position buffer, using LPIB read method instead. [ 35.124068] hda-intel: Invalid position buffer, using LPIB read method instead. [ 35.298915] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj. [ 39.177463] ieee80211 phy0: device no longer idle - scanning [ 39.281338] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro,user_xattr,commit=0 [ 42.319521] ieee80211 phy0: device now idle [ 132.085933] ieee80211 phy0: device no longer idle - scanning [ 135.458783] ieee80211 phy0: device now idle [ 135.463938] ieee80211 phy0: device no longer idle - working [ 135.466849] wlan8: authenticate with 68:7f:74:3b:b1:0f (try 1) [ 135.472508] wlan8: authenticated [ 135.472680] ieee80211 phy0: Allocated STA 68:7f:74:3b:b1:0f [ 135.472689] ieee80211 phy0: Inserted dummy STA 68:7f:74:3b:b1:0f [ 135.475839] wlan8: associate with 68:7f:74:3b:b1:0f (try 1) [ 135.482033] wlan8: RX AssocResp from 68:7f:74:3b:b1:0f (capab=0x411 status=0 aid=2) [ 135.482036] wlan8: associated [ 135.482609] ieee80211 phy0: Inserted STA 68:7f:74:3b:b1:0f [ 135.482613] ieee80211 phy0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 txop=0 uapsd=0 [ 135.482616] ieee80211 phy0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 txop=0 uapsd=0 [ 135.482619] ieee80211 phy0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 txop=94 uapsd=0 [ 135.482621] ieee80211 phy0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 txop=47 uapsd=0 [ 135.487047] ADDRCONF(NETDEV_CHANGE): wlan8: link becomes ready [ 135.488063] Rx A-MPDU request on tid 0 result 0 [ 144.357086] Open BA session requested for 68:7f:74:3b:b1:0f tid 0 [ 144.426737] activated addBA response timer on tid 0 [ 144.428615] switched off addBA timer for tid 0 [ 144.428618] Aggregation is on for tid 0 [ 144.428758] iwlagn 0000:03:00.0: Tx aggregation enabled on ra = 68:7f:74:3b:b1:0f tid = 0 [ 563.427696] Open BA session requested for 68:7f:74:3b:b1:0f tid 6 [ 563.428179] activated addBA response timer on tid 6 [ 563.430054] switched off addBA timer for tid 6 [ 563.430058] Aggregation is on for tid 6 [ 563.430198] iwlagn 0000:03:00.0: Tx aggregation enabled on ra = 68:7f:74:3b:b1:0f tid = 6 [ 1274.053879] ieee80211 phy0: wlan8: No ack for nullfunc frame to AP 68:7f:74:3b:b1:0f, try 1/2 [ 1274.058786] ieee80211 phy0: wlan8: No ack for nullfunc frame to AP 68:7f:74:3b:b1:0f, disconnecting. [ 1274.058807] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 1274.058820] Rx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 1274.058948] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 6 [ 1274.063782] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 1274.063793] iwlagn 0000:03:00.0: Stopping AGG while state not ONor starting [ 1274.063937] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 6 [ 1274.063944] iwlagn 0000:03:00.0: Stopping AGG while state not ONor starting [ 1274.212659] ieee80211 phy0: Removed STA 68:7f:74:3b:b1:0f [ 1274.212848] ieee80211 phy0: Destroyed STA 68:7f:74:3b:b1:0f [ 1274.212872] ieee80211 phy0: device now idle [ 1274.262722] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 6 [ 1274.262728] Could not find station: 68:7f:74:3b:b1:0f [ 1274.262763] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 0 [ 1274.262768] Could not find station: 68:7f:74:3b:b1:0f [ 1274.262803] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 0 [ 1274.262808] Could not find station: 68:7f:74:3b:b1:0f [ 1274.262841] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 6 [ 1274.262846] Could not find station: 68:7f:74:3b:b1:0f [ 1274.263312] cfg80211: All devices are disconnected, going to restore regulatory settings [ 1274.263334] cfg80211: Restoring regulatory settings [ 1274.263391] cfg80211: Calling CRDA to update world regulatory domain [ 1274.280759] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 1274.280766] cfg80211: World regulatory domain updated: [ 1274.280769] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 1274.280774] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2000 mBm) [ 1274.363721] ieee80211 phy0: device no longer idle - scanning [ 1277.606397] ieee80211 phy0: device now idle [ 1277.611446] ieee80211 phy0: device no longer idle - working [ 1277.614321] wlan8: authenticate with 68:7f:74:3b:b1:0f (try 1) [ 1277.617086] wlan8: authenticated [ 1277.617193] ieee80211 phy0: Allocated STA 68:7f:74:3b:b1:0f [ 1277.617201] ieee80211 phy0: Inserted dummy STA 68:7f:74:3b:b1:0f [ 1277.618046] wlan8: associate with 68:7f:74:3b:b1:0f (try 1) [ 1277.624327] wlan8: RX AssocResp from 68:7f:74:3b:b1:0f (capab=0x411 status=0 aid=2) [ 1277.624333] wlan8: associated [ 1277.625710] ieee80211 phy0: Inserted STA 68:7f:74:3b:b1:0f [ 1277.625719] ieee80211 phy0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 txop=0 uapsd=0 [ 1277.625727] ieee80211 phy0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 txop=0 uapsd=0 [ 1277.625733] ieee80211 phy0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 txop=94 uapsd=0 [ 1277.625738] ieee80211 phy0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 txop=47 uapsd=0 [ 1277.629864] Rx A-MPDU request on tid 0 result 0 [ 1277.640505] iwlagn 0000:03:00.0: Queue 2 stuck for 2000 ms. [ 1277.640513] iwlagn 0000:03:00.0: On demand firmware reload [ 1277.640610] ieee80211 phy0: Hardware restart was requested [ 1277.640668] iwlagn 0000:03:00.0: L1 Disabled; Enabling L0S [ 1277.640797] iwlagn 0000:03:00.0: Radio type=0x1-0x3-0x1 [ 1277.749326] Rx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 1278.639143] Rx A-MPDU request on tid 0 result 0 [ 1291.825925] Open BA session requested for 68:7f:74:3b:b1:0f tid 0 [ 1291.826100] activated addBA response timer on tid 0 [ 1291.830332] switched off addBA timer for tid 0 [ 1379.437022] Aggregation is on for tid 0 [ 1379.437169] iwlagn 0000:03:00.0: Tx aggregation enabled on ra = 68:7f:74:3b:b1:0f tid = 0 [ 2233.422214] ieee80211 phy0: wlan8: No ack for nullfunc frame to AP 68:7f:74:3b:b1:0f, try 1/2 [ 3541.474353] wlan8: deauthenticated from 68:7f:74:3b:b1:0f (Reason: 16) [ 3541.474367] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 3541.474490] Rx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 3541.477062] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 3541.477072] iwlagn 0000:03:00.0: Stopping AGG while state not ONor starting [ 3541.719666] ieee80211 phy0: Removed STA 68:7f:74:3b:b1:0f [ 3541.719803] ieee80211 phy0: Destroyed STA 68:7f:74:3b:b1:0f [ 3541.719832] ieee80211 phy0: device now idle [ 3541.890003] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 0 [ 3541.890009] Could not find station: 68:7f:74:3b:b1:0f [ 3541.890029] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 0 [ 3541.890032] Could not find station: 68:7f:74:3b:b1:0f [ 3541.890348] cfg80211: All devices are disconnected, going to restore regulatory settings [ 3541.890368] cfg80211: Restoring regulatory settings [ 3541.890406] cfg80211: Calling CRDA to update world regulatory domain [ 3541.906994] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 3541.907000] cfg80211: World regulatory domain updated: [ 3541.907003] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 3541.907008] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2000 mBm) [ 3541.990694] ieee80211 phy0: device no longer idle - scanning [ 3545.160488] cfg80211: Found new beacon on frequency: 5805 MHz (Ch 161) on phy0 [ 3545.301274] ieee80211 phy0: device now idle [ 3545.303904] ieee80211 phy0: device no longer idle - working [ 3545.306816] wlan8: authenticate with 68:7f:74:3b:b1:0f (try 1) [ 3545.315795] wlan8: authenticated [ 3545.315928] ieee80211 phy0: Allocated STA 68:7f:74:3b:b1:0f [ 3545.315937] ieee80211 phy0: Inserted dummy STA 68:7f:74:3b:b1:0f [ 3545.316681] ieee80211 phy0: device now idle [ 3545.316736] ieee80211 phy0: device no longer idle - working [ 3545.319321] wlan8: associate with 68:7f:74:3b:b1:0f (try 1) [ 3545.325539] wlan8: RX AssocResp from 68:7f:74:3b:b1:0f (capab=0x411 status=0 aid=2) [ 3545.325544] wlan8: associated [ 3545.326821] ieee80211 phy0: Inserted STA 68:7f:74:3b:b1:0f [ 3545.326826] ieee80211 phy0: WMM queue=2 aci=0 acm=0 aifs=3 cWmin=15 cWmax=1023 txop=0 uapsd=0 [ 3545.326831] ieee80211 phy0: WMM queue=3 aci=1 acm=0 aifs=7 cWmin=15 cWmax=1023 txop=0 uapsd=0 [ 3545.326834] ieee80211 phy0: WMM queue=1 aci=2 acm=0 aifs=2 cWmin=7 cWmax=15 txop=94 uapsd=0 [ 3545.326838] ieee80211 phy0: WMM queue=0 aci=3 acm=0 aifs=2 cWmin=3 cWmax=7 txop=47 uapsd=0 [ 3545.335917] Rx A-MPDU request on tid 0 result 0 [ 3551.260332] Open BA session requested for 68:7f:74:3b:b1:0f tid 0 [ 3551.355065] activated addBA response timer on tid 0 [ 3552.353772] addBA response timer expired on tid 0 [ 3552.353790] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 3552.632503] switched off addBA timer for tid 0 [ 3552.632508] Aggregation is on for tid 0 [ 3552.632653] iwlagn 0000:03:00.0: Tx aggregation enabled on ra = 68:7f:74:3b:b1:0f tid = 0 [ 3552.632800] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 0 [ 3618.389134] Open BA session requested for 68:7f:74:3b:b1:0f tid 0 [ 3618.389323] activated addBA response timer on tid 0 [ 3618.393331] switched off addBA timer for tid 0 [ 3618.393335] Aggregation is on for tid 0 [ 3618.393477] iwlagn 0000:03:00.0: Tx aggregation enabled on ra = 68:7f:74:3b:b1:0f tid = 0 Then I decided to rmmod iwlagn [ 3973.371031] Tx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 3973.371147] Rx BA session stop requested for 68:7f:74:3b:b1:0f tid 0 [ 3973.371189] Stopping Tx BA session for 68:7f:74:3b:b1:0f tid 0 [ 3973.371388] wlan8: deauthenticating from 68:7f:74:3b:b1:0f by local choice (reason=3) [ 3973.533339] ieee80211 phy0: Removed STA 68:7f:74:3b:b1:0f [ 3973.533432] ieee80211 phy0: Destroyed STA 68:7f:74:3b:b1:0f [ 3973.533445] ieee80211 phy0: device now idle [ 3973.533490] cfg80211: All devices are disconnected, going to restore regulatory settings [ 3973.533502] cfg80211: Restoring regulatory settings [ 3973.533532] cfg80211: Calling CRDA to update world regulatory domain [ 3973.546604] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 3973.546611] cfg80211: World regulatory domain updated: [ 3973.546614] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) [ 3973.546619] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (600 mBi, 2000 mBm) [ 3975.237526] ============================================================================= [ 3975.237534] BUG iwlagn_dev_cmd: Objects remaining on kmem_cache_close() [ 3975.237538] ----------------------------------------------------------------------------- [ 3975.237540] [ 3975.237544] INFO: Slab 0xffffea0002a2bc00 objects=24 used=1 fp=0xffff8800a8af1480 flags=0x100000000004080 [ 3975.237551] Pid: 3118, comm: rmmod Not tainted 3.1.0-rc5-wl+ #21 [ 3975.237554] Call Trace: [ 3975.237567] [] slab_err+0xaf/0xd0 [ 3975.237574] [] ? __kmalloc+0x13b/0x1d0 [ 3975.237580] [] kmem_cache_destroy+0x1d0/0x3d0 [ 3975.237592] [] iwl_uninit_drv+0x37/0x70 [iwlagn] [ 3975.237605] [] iwl_remove+0x101/0x11d [iwlagn] [ 3975.237617] [] iwl_pci_remove+0x2a/0x6d [iwlagn] [ 3975.237625] [] pci_device_remove+0x52/0x120 [ 3975.237632] [] __device_release_driver+0x7c/0xe0 [ 3975.237637] [] driver_detach+0xc8/0xd0 [ 3975.237642] [] bus_remove_driver+0x79/0xd0 [ 3975.237646] [] driver_unregister+0x62/0xa0 [ 3975.237652] [] pci_unregister_driver+0x45/0xc0 [ 3975.237666] [] iwl_pci_unregister_driver+0x15/0x20 [iwlagn] [ 3975.237678] [] iwl_exit+0x9/0x10 [iwlagn] [ 3975.237684] [] sys_delete_module+0x18d/0x260 [ 3975.237690] [] ? do_munmap+0x2da/0x370 [ 3975.237699] [] ? page_fault+0x25/0x30 [ 3975.237705] [] system_call_fastpath+0x16/0x1b [ 3975.237714] INFO: Object 0xffff8800a8af1c30 @offset=7216 [ 3975.237724] INFO: Allocated in iwlagn_tx_skb+0xd6/0x810 [iwlagn] age=269909 cpu=1 pid=884 [ 3975.237730] __slab_alloc+0x297/0x480 [ 3975.237734] kmem_cache_alloc+0x11f/0x170 [ 3975.237742] iwlagn_tx_skb+0xd6/0x810 [iwlagn] [ 3975.237749] iwlagn_mac_tx+0x1a/0x30 [iwlagn] [ 3975.237774] __ieee80211_tx+0x76/0x260 [mac80211] [ 3975.237792] ieee80211_tx+0x8c/0xb0 [mac80211] [ 3975.237809] ieee80211_xmit+0xbe/0x1e0 [mac80211] [ 3975.237827] ieee80211_subif_start_xmit+0x3b1/0x8e0 [mac80211] [ 3975.237833] dev_hard_start_xmit+0x2a1/0x6b0 [ 3975.237837] sch_direct_xmit+0xee/0x1e0 [ 3975.237841] dev_queue_xmit+0x18f/0x620 [ 3975.237846] packet_sendmsg+0xb26/0xb90 [ 3975.237851] sock_sendmsg+0xef/0x120 [ 3975.237855] sys_sendto+0x13d/0x190 [ 3975.237859] system_call_fastpath+0x16/0x1b [ 3975.237871] INFO: Freed in iwlagn_rx_reply_tx+0x307/0x770 [iwlagn] age=269909 cpu=2 pid=0 [ 3975.237877] __slab_free+0x1a7/0x2c0 [ 3975.237881] kmem_cache_free+0xe6/0xf0 [ 3975.237889] iwlagn_rx_reply_tx+0x307/0x770 [iwlagn] [ 3975.237900] iwl_rx_dispatch+0x11f/0x130 [iwlagn] [ 3975.237911] iwl_irq_tasklet+0x32c/0x830 [iwlagn] [ 3975.237915] tasklet_action+0x6c/0x120 [ 3975.237919] __do_softirq+0xad/0x1d0 [ 3975.237924] call_softirq+0x1c/0x30 [ 3975.237929] do_softirq+0x65/0xa0 [ 3975.237932] irq_exit+0x8e/0xb0 [ 3975.237935] do_IRQ+0x66/0xe0 [ 3975.237940] ret_from_intr+0x0/0x15 [ 3975.237945] acpi_idle_enter_c1+0x8d/0xab [ 3975.237950] cpuidle_idle_call+0xe9/0x1c0 [ 3975.237954] cpu_idle+0xc5/0x100 [ 3975.237958] start_secondary+0x1e0/0x1e7 [ 3975.237983] SLUB iwlagn_dev_cmd: kmem_cache_destroy called for cache that still has objects. [ 3975.237988] Pid: 3118, comm: rmmod Not tainted 3.1.0-rc5-wl+ #21 [ 3975.237991] Call Trace: [ 3975.237997] [] kmem_cache_destroy+0x36f/0x3d0 [ 3975.238006] [] iwl_uninit_drv+0x37/0x70 [iwlagn] [ 3975.238018] [] iwl_remove+0x101/0x11d [iwlagn] [ 3975.238030] [] iwl_pci_remove+0x2a/0x6d [iwlagn] [ 3975.238036] [] pci_device_remove+0x52/0x120 [ 3975.238041] [] __device_release_driver+0x7c/0xe0 [ 3975.238046] [] driver_detach+0xc8/0xd0 [ 3975.238051] [] bus_remove_driver+0x79/0xd0 [ 3975.238056] [] driver_unregister+0x62/0xa0 [ 3975.238062] [] pci_unregister_driver+0x45/0xc0 [ 3975.238074] [] iwl_pci_unregister_driver+0x15/0x20 [iwlagn] [ 3975.238086] [] iwl_exit+0x9/0x10 [iwlagn] [ 3975.238090] [] sys_delete_module+0x18d/0x260 [ 3975.238095] [] ? do_munmap+0x2da/0x370 [ 3975.238101] [] ? page_fault+0x25/0x30 [ 3975.238106] [] system_call_fastpath+0x16/0x1b [ 3975.239817] iwlagn 0000:03:00.0: PCI INT A disabled [ 3977.626994] Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree: [ 3977.626997] Copyright(c) 2003-2011 Intel Corporation [ 3977.627102] iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 [ 3977.627113] iwlagn 0000:03:00.0: setting latency timer to 64 [ 3977.627628] iwlagn 0000:03:00.0: pci_resource_len = 0x00002000 [ 3977.627630] iwlagn 0000:03:00.0: pci_resource_base = ffffc90024518000 [ 3977.627632] iwlagn 0000:03:00.0: HW Revision ID = 0x35 [ 3977.627731] iwlagn 0000:03:00.0: irq 44 for MSI/MSI-X [ 3977.627782] iwlagn 0000:03:00.0: Detected Intel(R) Centrino(R) Advanced-N 6200 AGN, REV=0x74 [ 3977.627961] iwlagn 0000:03:00.0: L1 Disabled; Enabling L0S [ 3977.637141] iwlagn 0000:03:00.0: device EEPROM VER=0x436, CALIB=0x6 [ 3977.637143] iwlagn 0000:03:00.0: Device SKU: 0X1f0 [ 3977.637181] iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels [ 3977.645447] iwlagn 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532 [ 3977.646031] Registered led device: phy1-led [ 3977.646346] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain [ 3977.647668] ieee80211 phy1: Selected rate control algorithm 'iwl-agn-rs' [ 3977.701067] udev[3239]: renamed network interface wlan0 to wlan8 [ 3977.704796] iwlagn 0000:03:00.0: L1 Disabled; Enabling L0S [ 3977.704939] iwlagn 0000:03:00.0: Radio type=0x1-0x3-0x1 [ 3977.951352] iwlagn 0000:03:00.0: L1 Disabled; Enabling L0S [ 3977.951483] iwlagn 0000:03:00.0: Radio type=0x1-0x3-0x1 [ 3978.043624] ieee80211 phy1: device now idle [ 3978.057693] ADDRCONF(NETDEV_UP): wlan8: link is not ready [ 3978.123908] ieee80211 phy1: device no longer idle - scanning