[Bug 555286] [NEW] Kernel crash when switching off wlan after wlan hangup (Thinkpad R60, iwl3945)

Christophe christophe at wk3.org
Sun Apr 4 18:47:26 UTC 2010 

Public bug reported:

Hi,

when I'm watching Zattoo (online tv) my wlan connection dies after a few
minutes. Automatic reconnect is not possible, syslog shows the following
error messages:

Apr  4 20:21:21 r60 kernel: [  727.542280] No probe response from AP 00:1f:3f:1e:41:b5 after 500ms, disconnecting.
Apr  4 20:21:21 r60 wpa_supplicant[1048]: CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys
Apr  4 20:21:21 r60 NetworkManager: <info>  (wlan0): supplicant connection state:  completed -> disconnected
Apr  4 20:21:21 r60 NetworkManager: <info>  (wlan0): supplicant connection state:  disconnected -> scanning
Apr  4 20:21:22 r60 kernel: [  728.212555] iwl3945 0000:03:00.0: Error sending REPLY_RXON: time out after 500ms.
Apr  4 20:21:22 r60 kernel: [  728.212565] iwl3945 0000:03:00.0: Error setting new configuration (-110).
(...)

As a workaround I have to switch wlan off and on, while doing this in
one of ten cases I get the kernel oops I'm reporting here. The Problems
are probably related.

Apr  4 20:25:06 r60 kernel: [  953.043563] ------------[ cut here ]------------
Apr  4 20:25:06 r60 kernel: [  953.043599] WARNING: at /build/buildd/linux-2.6.32/net/wireless/core.c:614 wdev_cleanup_work+0xe9/0x110 [cfg80211]()
Apr  4 20:25:06 r60 kernel: [  953.043604] Hardware name: 9461DXG
Apr  4 20:25:06 r60 kernel: [  953.043608] Modules linked in: cryptd aes_x86_64 aes_generic binfmt_misc rfcomm ppdev sco bridge stp bnep l2cap vboxnetadp vboxnetflt vboxdrv joydev dm_crypt snd_hda_codec_analog pcmcia usblp arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event iwl3945 snd_seq iwlcore snd_timer snd_seq_device yenta_socket mac80211 btusb bluetooth thinkpad_acpi led_class nvram rsrc_nonstatic lp pcmcia_core psmouse serio_raw cfg80211 snd parport soundcore snd_page_alloc fbcon tileblit font bitblit softcursor vga16fb vgastate usbhid hid radeon ttm ums_cypress ohci1394 usb_storage ieee1394 drm_kms_helper ahci video output drm i2c_algo_bit intel_agp tg3
Apr  4 20:25:06 r60 kernel: [  953.043716] Pid: 9, comm: events/0 Not tainted 2.6.32-19-generic #28-Ubuntu
Apr  4 20:25:06 r60 kernel: [  953.043721] Call Trace:
Apr  4 20:25:06 r60 kernel: [  953.043736]  [<ffffffff81066ceb>] warn_slowpath_common+0x7b/0xc0
Apr  4 20:25:06 r60 kernel: [  953.043743]  [<ffffffff81066d44>] warn_slowpath_null+0x14/0x20
Apr  4 20:25:06 r60 kernel: [  953.043759]  [<ffffffffa02a70f9>] wdev_cleanup_work+0xe9/0x110 [cfg80211]
Apr  4 20:25:06 r60 kernel: [  953.043774]  [<ffffffffa02a7010>] ? wdev_cleanup_work+0x0/0x110 [cfg80211]
Apr  4 20:25:06 r60 kernel: [  953.043783]  [<ffffffff81080757>] run_workqueue+0xc7/0x1a0
Apr  4 20:25:06 r60 kernel: [  953.043790]  [<ffffffff810808d3>] worker_thread+0xa3/0x110
Apr  4 20:25:06 r60 kernel: [  953.043798]  [<ffffffff81085300>] ? autoremove_wake_function+0x0/0x40
Apr  4 20:25:06 r60 kernel: [  953.043805]  [<ffffffff81080830>] ? worker_thread+0x0/0x110
Apr  4 20:25:06 r60 kernel: [  953.043811]  [<ffffffff81084f86>] kthread+0x96/0xa0
Apr  4 20:25:06 r60 kernel: [  953.043819]  [<ffffffff810141ea>] child_rip+0xa/0x20
Apr  4 20:25:06 r60 kernel: [  953.043825]  [<ffffffff81084ef0>] ? kthread+0x0/0xa0
Apr  4 20:25:06 r60 kernel: [  953.043831]  [<ffffffff810141e0>] ? child_rip+0x0/0x20
Apr  4 20:25:06 r60 kernel: [  953.043835] ---[ end trace 27f983551f31d6c0 ]---

ProblemType: KernelOops
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-generic 2.6.32-19.28
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Annotation: Your system might become unstable now and might need to be restarted.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  christophe   1591 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xee400000 irq 17'
   Mixer name	: 'Analog Devices AD1981'
   Components	: 'HDA:11d41981,17aa2025,00100200'
   Controls      : 20
   Simple ctrls  : 11
Card29.Amixer.info:
 Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw 7CHT22WW-1.10'
   Mixer name	: 'ThinkPad EC 7CHT22WW-1.10'
   Components	: ''
   Controls      : 2
   Simple ctrls  : 1
Card29.Amixer.values:
 Simple mixer control 'Console',0
   Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
   Playback channels: Mono
   Limits: Playback 0 - 14
   Mono: Playback 14 [100%] [on]
Date: Sun Apr  4 20:25:12 2010
Failure: oops
HibernationDevice: RESUME=UUID=f0ac1718-219d-4794-b568-07a1df820bfc
MachineType: LENOVO 9461DXG
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-19-generic root=UUID=76a2ac5d-a68d-4595-8a11-e60177aff67e ro quiet splash
RelatedPackageVersions: linux-firmware 1.33
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-2.6.32/net/wireless/core.c:614 wdev_cleanup_work+0xe9/0x110 [cfg80211]()
dmi.bios.date: 08/28/2009
dmi.bios.vendor: LENOVO
dmi.bios.version: 7CETD3WW (2.23 )
dmi.board.name: 9461DXG
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:bvr7CETD3WW(2.23):bd08/28/2009:svnLENOVO:pn9461DXG:pvrThinkPadR60:rvnLENOVO:rn9461DXG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 9461DXG
dmi.product.version: ThinkPad R60
dmi.sys.vendor: LENOVO

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


** Tags: amd64 apport-kerneloops kernel-oops lucid needs-upstream-testing networking

-- 
Kernel crash when switching off wlan after wlan hangup (Thinkpad R60, iwl3945)
https://bugs.launchpad.net/bugs/555286
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