8086:0084 WARNING: at /build/buildd/linux-3.5.0/net/wireless/mlme.c:491 cfg80211_mlme_disassoc+0xcd/0xe0 [cfg80211]()

[James Hunt]

Problem seems to have happened in the last few days, possible due to different networking equipment in use here at UDS?

In desperation, I shut down wlan0, rmmod'ed e1000e and reversed the operation. This generated an Oops and didn't fix the problem:

[16804.338838] ------------[ cut here ]------------
[16804.338873] WARNING: at /build/buildd/linux-3.5.0/net/wireless/mlme.c:491 cfg80211_mlme_disassoc+0xcd/0xe0 [cfg80211]()
[16804.338875] Hardware name: 2516CTO
[16804.338876] Modules linked in: e1000e hid_generic usbhid hid sdhci_pci sdhci ext2 pci_stub overlayfs ip6table_filter ip6_tables ebtable_nat ebtables xt_state ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables bridge stp llc deflate zlib_deflate ctr twofish_generic twofish_i586 twofish_common camellia_generic serpent_sse2_i586 lrw serpent_generic xts gf128mul blowfish_generic blowfish_common cast5 des_generic xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo bnep rfcomm parport_pc ppdev nvidia(PO) arc4 iwlwifi uvcvideo snd_hda_codec_hdmi btusb videobuf2_core bluetooth videodev mac80211 joydev videobuf2_vmalloc videobuf2_memops coretemp snd_hda_codec_conexant kvm_intel kvm snd_hda_intel snd_hda_codec cfg80211 thinkpad_acpi snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq psmouse aesni_intel cryptd snd_timer serio_raw snd_seq_device snd aes_i586 soundcore microcode dm_multipath scsi_dh snd_page_alloc mei video tpm_tis mac_hid intel_ips lpc_ich nvram mxm_wmi wmi nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc binfmt_misc lp parport mmc_block firewire_ohci firewire_core crc_itu_t nbd [last unloaded: e1000e]
[16804.338955] Pid: 1850, comm: wpa_supplicant Tainted: P O 3.5.0-17-generic #28-Ubuntu
[16804.338956] Call Trace:
[16804.338968] [<c1044802>] warn_slowpath_common+0x72/0xa0
[16804.338977] [<f985948d>] ? cfg80211_mlme_disassoc+0xcd/0xe0 [cfg80211]
[16804.338986] [<f985948d>] ? cfg80211_mlme_disassoc+0xcd/0xe0 [cfg80211]
[16804.338990] [<c1044852>] warn_slowpath_null+0x22/0x30
[16804.339000] [<f985948d>] cfg80211_mlme_disassoc+0xcd/0xe0 [cfg80211]
[16804.339008] [<f984363a>] ? cfg80211_get_dev_from_ifindex+0x5a/0x90 [cfg80211]
[16804.339018] [<f984b122>] nl80211_disassociate+0xb2/0xf0 [cfg80211]
[16804.339023] [<c1050d27>] ? ns_capable+0x27/0x60
[16804.339034] [<f9854ad0>] ? nl80211_join_ibss+0x2c0/0x2c0 [cfg80211]
[16804.339039] [<c14fe025>] genl_rcv_msg+0x225/0x280
[16804.339044] [<c14fde00>] ? genl_rcv+0x30/0x30
[16804.339046] [<c14fd9c6>] netlink_rcv_skb+0x86/0xa0
[16804.339049] [<c14fddec>] genl_rcv+0x1c/0x30
[16804.339052] [<c14fd394>] netlink_unicast+0x164/0x1e0
[16804.339055] [<c14fd629>] netlink_sendmsg+0x219/0x370
[16804.339058] [<c14c7ef0>] sock_sendmsg+0xc0/0xf0
[16804.339064] [<c12d3e31>] ? _copy_from_user+0x41/0x60
[16804.339067] [<c12d3e31>] ? _copy_from_user+0x41/0x60
[16804.339073] [<c14d223f>] ? verify_iovec+0x3f/0xb0
[16804.339075] [<c14c8209>] __sys_sendmsg+0x299/0x2b0
[16804.339078] [<c14c7ce0>] ? sock_sendmsg_nosec+0xf0/0xf0
[16804.339082] [<c1056847>] ? recalc_sigpending+0x17/0x50
[16804.339085] [<c1057065>] ? __set_task_blocked+0x35/0x80
[16804.339089] [<c14c8feb>] sys_sendmsg+0x3b/0x60
[16804.339091] [<c14c9683>] sys_socketcall+0x273/0x2d0
[16804.339096] [<c15ca0b0>] ? do_debug+0x170/0x170
[16804.339100] [<c15c9354>] syscall_call+0x7/0xb
[16804.339102] ---[ end trace ee43f46a3019bc6a ]---
[16805.715038] wlan0: authenticate with 34:bd:c8:7f:52:60
[16805.716097] wlan0: direct probe to 34:bd:c8:7f:52:60 (try 1/3)
[16805.917864] wlan0: direct probe to 34:bd:c8:7f:52:60 (try 2/3)
[16806.121338] wlan0: send auth to 34:bd:c8:7f:52:60 (try 3/3)
[16806.144519] wlan0: authenticated
[16806.149266] wlan0: associate with 34:bd:c8:7f:52:60 (try 1/3)
[16806.188432] wlan0: RX AssocResp from 34:bd:c8:7f:52:60 (capab=0x421 status=0 aid=29)
[16806.192677] wlan0: associated
[16808.116349] init: gwibber main process (25962) terminated with status 1
[16808.123999] init: gwibber post-stop process (25989) terminated with status 1
[16811.088915] usb 1-1.4: >USB disconnect, device number 5
[16813.446911] iwlwifi 0000:03:00.0: >fail to flush all tx fifo queues
[16818.414408] iwlwifi 0000:03:00.0: >fail to flush all tx fifo queues
[16823.422367] iwlwifi 0000:03:00.0: >fail to flush all tx fifo queues

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-17-generic 3.5.0-17.28
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic i686
NonfreeKernelModules: nvidia
ApportVersion: 2.6.1-0ubuntu6
Architecture: i386
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: james 3414 F.... pulseaudio
 /dev/snd/controlC0: james 3414 F.... pulseaudio
 /dev/snd/pcmC0D0c: james 3414 F...m pulseaudio
 /dev/snd/pcmC0D0p: james 3414 F...m pulseaudio
Date: Thu Nov 1 14:15:38 2012
HibernationDevice: RESUME=UUID=67e3cd44-242b-4bbf-918b-28fff81e0312
InstallationDate: Installed on 2010-10-21 (742 days ago)
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: LENOVO 2516CTO
MarkForUpload: True
ProcFB:

ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-17-generic root=UUID=7ad192e9-7b26-49d1-8e1c-fefc7dc495cb ro quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-17-generic N/A
 linux-backports-modules-3.5.0-17-generic N/A
 linux-firmware 1.95
SourcePackage: linux
UpgradeStatus: Upgraded to quantal on 2012-09-30 (31 days ago)
dmi.bios.date: 08/27/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 6IET72WW (1.32 )
dmi.board.name: 2516CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr6IET72WW(1.32):bd08/27/2010:svnLENOVO:pn2516CTO:pvrThinkPadT410:rvnLENOVO:rn2516CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2516CTO
dmi.product.version: ThinkPad T410
dmi.sys.vendor: LENOVO

[Joseph Salisbury (jsalisbury)]

You wireless driver is iwlwifi. The e1000e driver is for your wired network interface. Did you apply any updates while here at UDS?

Can you see if disabling N works around your issue?

This can be done by adding:
options iwlwifi 11n_disable=1
to
/etc/modprobe.d/iwlwifi.conf

[H. van de Kolk (rikolk-f)]

for me: as always when adding the options iwlwifi 11n_disable=1 the problem is gone
but this isn't the prefered solution

[penalvch (penalvch)]

James Hunt, as per http://download.lenovo.com/express/ddfm.html an update is available for your BIOS (1.42). If you update to this, does it change anything?

If not, could you please both specify what happened, and provide the output of the following terminal command:
sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date

Thank you for your understanding.

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]