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[Launchpad Bug Tracker <1121137@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/1121137

Title:
  Wireless driver crash on HP Compaq 6720s laptop

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  The kernel spits out  the following:
  [  518.240111] ------------[ cut here ]------------
  [  518.240138] WARNING: at /build/buildd/linux-3.2.0/net/wireless/sme.c:586 __cfg80211_roamed+0x243/0x260 [cfg80211]()
  [  518.240146] Hardware name: HP Compaq 6720s
  [  518.240148] Modules linked in: michael_mic arc4 dm_crypt bnep bluetooth parport_pc nfsd lib80211_crypt_tkip ppdev nfs lockd wl(P) fscache auth_rpcgss binfmt_misc nfs_acl sunrpc snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event hp_wmi joydev sparse_keymap snd_seq snd_timer snd_seq_device cfg80211 snd soundcore psmouse snd_page_alloc serio_raw lib80211 mac_hid lp parport i915 drm_kms_helper drm e1000e i2c_algo_bit wmi video
  [  518.240189] Pid: 5, comm: kworker/u:0 Tainted: P        W  O 3.2.0-36-generic #57-Ubuntu
  [  518.240192] Call Trace:
  [  518.240202]  [<ffffffff81067f0f>] warn_slowpath_common+0x7f/0xc0
  [  518.240206]  [<ffffffff81067f6a>] warn_slowpath_null+0x1a/0x20
  [  518.240216]  [<ffffffffa01823d3>] __cfg80211_roamed+0x243/0x260 [cfg80211]
  [  518.240226]  [<ffffffffa0168ea2>] cfg80211_process_wdev_events+0x1b2/0x1e0 [cfg80211]
  [  518.240234]  [<ffffffffa01661e0>] ? wiphy_unregister+0x1d0/0x1d0 [cfg80211]
  [  518.240242]  [<ffffffffa0168f20>] cfg80211_process_rdev_events+0x50/0x90 [cfg80211]
  [  518.240250]  [<ffffffffa0166215>] cfg80211_event_work+0x35/0x60 [cfg80211]
  [  518.240260]  [<ffffffff81085c3a>] process_one_work+0x11a/0x480
  [  518.240265]  [<ffffffff810869f4>] worker_thread+0x164/0x370
  [  518.240269]  [<ffffffff81086890>] ? manage_workers.isra.31+0x130/0x130
  [  518.240274]  [<ffffffff8108b27c>] kthread+0x8c/0xa0
  [  518.240279]  [<ffffffff81667b74>] kernel_thread_helper+0x4/0x10
  [  518.240283]  [<ffffffff8108b1f0>] ? flush_kthread_worker+0xa0/0xa0
  [  518.240287]  [<ffffffff81667b70>] ? gs_change+0x13/0x13
  [  518.240289] ---[ end trace 85de0d28e5b81592 ]---
  [  519.772023] ------------[ cut here ]------------

  Ubuntu release:
  Description:    Ubuntu 12.04.2 LTS
  Release:        12.04

  This same bug also occurs on Linux 3.2.0-37-generic, but I booted the
  previous kernel to check whether this crash would still occur.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: wireless-regdb 2011.04.28-1ubuntu3
  ProcVersionSignature: Ubuntu 3.2.0-36.57-generic 3.2.35
  Uname: Linux 3.2.0-36-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  Date: Sun Feb 10 13:29:18 2013
  Dependencies:
   
  InstallationMedia: Kubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101008)
  MarkForUpload: True
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: wireless-regdb
  UpgradeStatus: Upgraded to precise on 2012-04-27 (288 days ago)

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