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[Launchpad Bug Tracker <540709@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/540709

Title:
  hang of system in WARNING: at
  /build/buildd/linux-2.6.32/net/mac80211/scan.c:285
  ieee80211_scan_completed+0x10f/0x310 [mac80211]()

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  HW: ThinkPad X200s
  SW: up-to-date Kubuntu Lucid

  System just hangs when left running for several hours unattended. This
  is now the second time I got this king of oops traces (repeated
  several times):

  Mar 17 15:04:49 lure kernel: [25767.049666] ------------[ cut here ]------------
  Mar 17 15:04:49 lure kernel: [25767.049705] WARNING: at /build/buildd/linux-2.6.32/net/mac80211/scan.c:285 ieee80211_scan_completed+0x10f/0x310 [mac80211]()
  Mar 17 15:04:49 lure kernel: [25767.049711] Hardware name: 74705HG
  Mar 17 15:04:49 lure kernel: [25767.049715] Modules linked in: sha256_generic cryptd aes_x86_64 aes_generic rfcomm binfmt_misc sco bridge stp bnep ppdev l2cap vboxdrv dm_crypt snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm arc4 snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq iwlagn snd_timer snd_seq_device iwlcore mac80211 snd psmouse thinkpad_acpi led_class nvram lp btusb bluetooth serio_raw soundcore snd_page_alloc cfg80211 parport fbcon tileblit font bitblit softcursor vga16fb vgastate e1000e i915 drm_kms_helper drm i2c_algo_bit video output intel_agp
  Mar 17 15:04:49 lure kernel: [25767.049824] Pid: 827, comm: iwlagn Not tainted 2.6.32-16-generic #25-Ubuntu
  Mar 17 15:04:49 lure kernel: [25767.049824] Pid: 827, comm: iwlagn Not tainted 2.6.32-16-generic #25-Ubuntu
  Mar 17 15:04:49 lure kernel: [25767.049830] Call Trace:
  Mar 17 15:04:49 lure kernel: [25767.049848]  [<ffffffff81064f8b>] warn_slowpath_common+0x7b/0xc0
  Mar 17 15:04:49 lure kernel: [25767.049856]  [<ffffffff81064fe4>] warn_slowpath_null+0x14/0x20
  Mar 17 15:04:49 lure kernel: [25767.049875]  [<ffffffffa01da50f>] ieee80211_scan_completed+0x10f/0x310 [mac80211]
  Mar 17 15:04:49 lure kernel: [25767.049901]  [<ffffffffa0232110>] ? iwl_bg_scan_completed+0x0/0x90 [iwlcore]
  Mar 17 15:04:49 lure kernel: [25767.049918]  [<ffffffffa0232159>] iwl_bg_scan_completed+0x49/0x90 [iwlcore]
  Mar 17 15:04:49 lure kernel: [25767.049929]  [<ffffffff8107e9b7>] run_workqueue+0xc7/0x1a0
  Mar 17 15:04:49 lure kernel: [25767.049937]  [<ffffffff8107eb33>] worker_thread+0xa3/0x110
  Mar 17 15:04:49 lure kernel: [25767.049947]  [<ffffffff81083580>] ? autoremove_wake_function+0x0/0x40
  Mar 17 15:04:49 lure kernel: [25767.049955]  [<ffffffff8107ea90>] ? worker_thread+0x0/0x110
  Mar 17 15:04:49 lure kernel: [25767.049962]  [<ffffffff81083206>] kthread+0x96/0xa0
  Mar 17 15:04:49 lure kernel: [25767.049972]  [<ffffffff8101422a>] child_rip+0xa/0x20
  Mar 17 15:04:49 lure kernel: [25767.049980]  [<ffffffff81083170>] ? kthread+0x0/0xa0
  Mar 17 15:04:49 lure kernel: [25767.049987]  [<ffffffff81014220>] ? child_rip+0x0/0x20
  Mar 17 15:04:49 lure kernel: [25767.049992] ---[ end trace 54b2fd0711b6c20f ]---
  Mar 17 15:04:49 lure kernel: [25767.049996] ------------[ cut here ]------------

  ProblemType: Bug
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: Intel [HDA Intel], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'Intel'/'HDA Intel at 0xf2620000 irq 17'
     Mixer name	: 'Conexant CX20561 (Hermosa)'
     Components	: 'HDA:14f15051,17aa20ff,00100000'
     Controls      : 14
     Simple ctrls  : 7
  Date: Thu Mar 18 07:14:52 2010
  DistroRelease: Ubuntu 10.04
  HibernationDevice: RESUME=UUID=be554c82-f22b-4035-957c-c1343bcb2f6d
  MachineType: LENOVO 74705HG
  Package: linux-image-2.6.32-16-generic 2.6.32-16.25
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-16-generic root=/dev/mapper/plain-root ro quiet splash
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
  Regression: Yes
  RelatedPackageVersions: linux-firmware 1.32
  Reproducible: Yes
  SourcePackage: linux
  TestedUpstream: No
  Uname: Linux 2.6.32-16-generic x86_64
  WifiSyslog:
   
  dmi.bios.date: 01/12/2010
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 6DET62WW (3.12 )
  dmi.board.name: 74705HG
  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:bvr6DET62WW(3.12):bd01/12/2010:svnLENOVO:pn74705HG:pvrThinkPadX200s:rvnLENOVO:rn74705HG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 74705HG
  dmi.product.version: ThinkPad X200s
  dmi.sys.vendor: LENOVO

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