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[Bug 1177851] Re: system freezes when disabling wifi

 

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

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https://bugs.launchpad.net/bugs/1177851

Title:
  system freezes when disabling wifi

Status in “linux” package in Ubuntu:
  Confirmed

Bug description:
  I recently upgraded my laptop (Compaq Mini 311-1100) to Xubuntu 13.04.

  The system freezes in the following situation :

  - Disabling Wifi (either by Wifi button or by network manager). 
  - Stopping network (/etc/init.d/networking stop)
  - System shutdown (the shutdown freezes when kernel tries to disable network). 

  I suppose the problem comes from the Atheros driver (ath9k) with
  Atheros card. Before trying to get latest version and recompile it, I
  submit this bug report.

  Network controller: Atheros Communications Inc. AR9285 Wireless
  Network Adapter (PCI-Express) (rev 01)

  lsmod :

  Module                  Size  Used by
  dm_crypt               22321  0 
  snd_hda_codec_hdmi     36185  1 
  coretemp               13131  0 
  snd_hda_codec_idt      63896  1 
  hp_wmi                 17712  0 
  sparse_keymap          13658  1 hp_wmi
  snd_hda_intel          38307  3 
  snd_hda_codec         117580  3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel
  snd_hwdep              13272  1 snd_hda_codec
  snd_pcm                80890  3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
  arc4                   12543  2 
  snd_page_alloc         14230  2 snd_pcm,snd_hda_intel
  snd_seq_midi           13132  0 
  snd_seq_midi_event     14475  1 snd_seq_midi
  ath9k                 134875  0 
  snd_rawmidi            25114  1 snd_seq_midi
  microcode              18286  0 
  ath9k_common           13783  1 ath9k
  ath9k_hw              398520  2 ath9k_common,ath9k
  snd_seq                51280  2 snd_seq_midi_event,snd_seq_midi
  ath                    19187  3 ath9k_common,ath9k,ath9k_hw
  uvcvideo               71279  0 
  videobuf2_vmalloc      12920  1 uvcvideo
  snd_seq_device         14137  3 snd_seq,snd_rawmidi,snd_seq_midi
  snd_timer              24411  2 snd_pcm,snd_seq
  mac80211              526519  1 ath9k
  videobuf2_memops       13042  1 videobuf2_vmalloc
  videobuf2_core         39161  1 uvcvideo
  psmouse                81038  0 
  cfg80211              436177  3 ath,ath9k,mac80211
  videodev               95806  2 uvcvideo,videobuf2_core
  serio_raw              13031  0 
  snd                    56485  16 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
  shpchp                 32129  0 
  soundcore              12600  1 snd
  btusb                  17986  0 
  joydev                 17097  0 
  nvidia               8494194  31 
  parport_pc             27504  0 
  wmi                    18590  1 hp_wmi
  ppdev                  12817  0 
  rfcomm                 37420  16 
  bnep                   17669  2 
  bluetooth             202069  22 bnep,btusb,rfcomm
  mac_hid                13037  0 
  drm                   228750  2 nvidia
  binfmt_misc            17260  1 
  i2c_nforce2            12876  0 
  lp                     13299  0 
  parport                40753  3 lp,ppdev,parport_pc
  vesafb                 13500  1 
  hid_logitech_dj        18172  0 
  usbhid                 41805  1 hid_logitech_dj
  hid                    82666  2 usbhid,hid_logitech_dj
  forcedeth              61777  0 
  ahci                   25507  2 
  libahci                26108  1 ahci
  video                  18894  0 

  Best regards,
  Stéphane d'Amico

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