Comment 7 for bug 555286

To be honest, I don't even remember this bug however what happens is that
when a bug is reported using apport, it basically just gives you a list of
bugs with the exact same title to choose from to determine whether to report
it or not. I basically just chose the first one in the list because the
complete title was likely cut off and up to a point they are identical (in
title).
Sorry for the inconvenience.

Cheers

On Mon, Apr 19, 2010 at 4:39 PM, Eric <email address hidden> wrote:

> *** This bug is a duplicate of bug 528688 ***
> https://bugs.launchpad.net/bugs/528688
>
> I don't believe this qualifies as a duplicate of bug 528688 at all.
> This deals with the network connection dropping during heaving network
> traffic, specifically using iwl3945. The kernel crash mentioned in the
> original report only occurs during a workaround involving reloading
> iwl3945, and while that may be a duplicate of 528688, it is a separate
> issue from the main problem here.
>
> --
> Kernel crash when switching off wlan after wlan hangup (iwl3945)
> https://bugs.launchpad.net/bugs/555286
> You received this bug notification because you are a direct subscriber
> of a duplicate bug (via bug 528688).
>
> Status in “linux” package in Ubuntu: Confirmed
>
> Bug description:
> 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
>
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> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/555286/+subscribe
>