system freezes when disabling wifi

[Stéphane D'AMICO]

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

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1177851/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1177851

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v3.9 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

If you are unable to test the mainline kernel, for example it will not boot, please add the tag: 'kernel-unable-to-test-upstream'.
Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.9-saucy/

[Stéphane D'AMICO (stephane-damico)]

Hello Joseph,

Thanks for your hint.
I installed latest kernel available for Ubuntu Raring :

stephane@ubuntumini:~$ uname -a
Linux ubuntumini 3.9.0-030900rc8-generic #201304211835 SMP Sun Apr 21 22:44:37 UTC 2013 i686 i686 i686 GNU/Linux

I have not experimented any freeze when shutting down the system so far. However I still get some Wifi disconnection issues sometimes which freeze the PC. So problem is not 100% solved.

Thanks,
Stéphane

[Fabrício Pereira (fabriciorsf)]

Similar bugs:
https://bugs.launchpad.net/ubuntu/+source/linux/+bugs?field.searchtext=AR9285
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/947697
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/576156
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773154
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/997718
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1053945
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1156346
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1162725
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1166865
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1173681
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1177851
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/626797
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/694115

[penalvch (penalvch)]

Stéphane D'AMICO, dould you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the kernel in the mainline kernels archive directory daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.10-rc2

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

If you are unable to test the mainline kernel, please comment as to why specifically you were unable to test it and add the following tags:
kernel-unable-to-test-upstream
kernel-unable-to-test-upstream-VERSION-NUMBER

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

[Launchpad Janitor (janitor)]

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

[vinçouille (v-jousse)]

I've done a fresh new install of ubuntu 13.10 on a Compaq Mini 311c-1170sf (same WiFi controller).
When I disable WiFi, sometimes it freezes the system, sometimes it doesn't.

What can I do to help ?

[penalvch (penalvch)]

vinçouille, if you have a bug in Ubuntu, the Ubuntu Kernel team, Ubuntu Bug Control team, and Ubuntu Bug Squad would like you to please file a new report by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette

When opening up the new report, please feel free to subscribe me to it.

Please note, not filing a new report would delay your problem being addressed as quickly as possible.

No need exists to comment here at this time. After reading the above documentation in it's entirety, if you have further questions, you are welcome to redirect them to the appropriate mailing list or forum via http://www.ubuntu.com/support/community/mailinglists , or you may contact me directly.

Thank you for your understanding.

[Launchpad Janitor (janitor)]

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