AR9287 hangs on ubuntu 11.04

[luck]

hello

my acer ao722 is freezing while using the wireless connection. I tried several solutions and linux distributions and all of them hangs. now I installed the kernel 2.6.39 without luck. It hangs with the standard image from the cd as well as it fully updated.

thanks a lot

luck

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: software-center 4.0.5
Uname: Linux 2.6.39-02063904-generic x86_64
Architecture: amd64
Date: Wed Aug 31 08:44:12 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 1: SB [HDA ATI SB], device 0: HDA Generic [HDA Generic]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: lucimar 1214 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Generic'/'HD-Audio Generic at 0x90444000 irq 41'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100200'
   Controls : 4
   Simple ctrls : 1
Card0.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
Card1.Amixer.info:
 Card hw:1 'SB'/'HDA ATI SB at 0x90440000 irq 16'
   Mixer name : 'Conexant ID 506c'
   Components : 'HDA:14f1506c,10250598,00100000'
   Controls : 6
   Simple ctrls : 4
DistroRelease: Ubuntu 11.04
HibernationDevice: RESUME=UUID=e38aab45-ee79-4872-8dbf-8446c77579dd
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: Acer AO722
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=1192fe6f-9bdd-4c89-83ef-eed12cf49888 ro quiet splash pcie_aspm=force vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.38-11.48-generic 2.6.38.8
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-11-generic N/A
 linux-backports-modules-2.6.38-11-generic N/A
 linux-firmware 1.52.1
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: natty running-unity
Uname: Linux 2.6.38-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 06/08/2011
dmi.bios.vendor: Acer
dmi.bios.version: V1.04
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: JE10-BZ
dmi.board.vendor: Acer
dmi.board.version: Base Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: V1.04
dmi.modalias: dmi:bvnAcer:bvrV1.04:bd06/08/2011:svnAcer:pnAO722:pvrV1.04:rvnAcer:rnJE10-BZ:rvrBaseBoardVersion:cvnAcer:ct10:cvrV1.04:
dmi.product.name: AO722
dmi.product.version: V1.04
dmi.sys.vendor: Acer

[luck (luckcenter-info)]

It is an Acer ao722 AMD C-50 with the wireless 07:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01)

I tested it running from the livecd only and it never freeze from there. Is there a difference between it installed or running from the cd?

I am using it in two networks. One without password and another using wpa&wpa2

[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 838016

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.

[luck (luckcenter-info)]

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[luck (luckcenter-info)]

Hi

Reinstalled everything and keep the original kernel 2.6.38-11 (x86 64). Enabled the pre-released updates + unsuported updates as well as applied the solution described by zzarko on his post at http://ubuntuforums.org/showthread.php?t=1811178.

so far it has been working without freezing. I did that yesterday in the morning. It worked the complete day and today it is working for half day without freezing.

I'll keep you posted.

Best regards

Lucimar

[luck (luckcenter-info)]

Hi

After doing the steps mentioned previously, it is still working without freezing anymore.

Best regards

Lucimar

[Philipp Raich (p-raich)]

I can confirm this bug (it is obviously pretty annoying) and the workaround mentioned above does not work for me and should not be considered a permanent fix.

Chipset is the mentioned above (Atheros 9287), at least lspci tells me that, I am right now not able to confirm this (Card is a TP-Link TL-WN851N PCI).

System freezes appear as soon as I try to transfer a "a lot" of data (no measurements for specific limit where it breaks done yet, but considering it), e.g: a 720p youtube video will cause a freeze in less than 10 seconds, running transmission to download a dvd-image will show repeated loss of connection (while the connection itself seems up and running no data is transferred, reconnecting to the wlan fixes that temporarily) but eventually the system freezes in less than 5 minutes.
Freezes can sometimes occur even earlier (when connecting, reconnecting, logging in, etc).

It also happens with kernel 3.0, fedora 15, live-cd (kernel 2.6.38-8) (in fact i run ubuntu from the natty live-cd right now and connect it to the internet through my macbook), so I guess it is a bug in one of the modules related to ath9k or even ath9k itself and it affects all recent kernel versions. I am not willing to downgrade to a kernel version even older than the versions shipped with the natty live-cd.

It might help to know that i am connecting to a WPA2/Personal-protected network and the signal is on the weaker side. It seems to be more than enough on windows though (and the connection is by far more reliable).

It does NOT happen if: I remove the ath9k module, I run Windows, or wireless is disabled in the the menu/widget (and I connect to the internet through the wired connection).

I am trying to pin down what exactly happens within the module that causes the freezing, but there is no output on the serial console before/when it happens, besides the occasional "ath: Failed to stop TX DMA in 100 msec after killing last frame" (see bug #736171), and my keyboard lacks a SysRq-Key while I was not successful assigning another key to SysRq, and my PS/2 Keyboard won't work for whatever reason...

I will now append the information of the system I am running right now (natty live-cd), this should be sufficient as it happens with the live-cd as well, and I will try to upload it with the wireless connection enabled, so please be patient, my system may freeze several times before I can successfully upload all information.

[Philipp Raich (p-raich)]

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: SB [HDA ATI SB], device 0: ALC892 Analog [ALC892 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'SB'/'HDA ATI SB at 0xfe6f4000 irq 16'
   Mixer name : 'Realtek ALC892'
   Components : 'HDA:10ec0892,1043841b,00100302'
   Controls : 32
   Simple ctrls : 18
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfe8e8000 irq 19'
   Mixer name : 'ATI RS690/780 HDMI'
   Components : 'HDA:1002791a,00791a00,00100000'
   Controls : 4
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
DistroRelease: Ubuntu 11.04
LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: System manufacturer System Product Name
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: noprompt cdrom-detect/try-usb=true file=/cdrom/preseed/hostname.seed boot=casper initrd=/casper/initrd.lz quiet splash --
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-8-generic N/A
 linux-backports-modules-2.6.38-8-generic N/A
 linux-firmware 1.52
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
Tags: natty running-unity
Uname: Linux 2.6.38-8-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 12/22/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1702
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A88TD-V EVO/USB3
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1702:bd12/22/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A88TD-VEVO/USB3:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Philipp Raich (p-raich)]

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[Timothy Mayoh (timothy-m-deactivatedaccount)]

Do you have a link for this bug on the Fedora bug tracker?

[Philipp Raich (p-raich)]

Sorry, I think this was my mistake, there is currently no bug-report for fedora I would know of and I did not report one myself yet, I thus set the status on fedora to "Invalid".

[Philipp Raich (p-raich)]

It seems restricting the Router (AVM Fritz!Box Fon WLAN 7140 SL) to WPA2 only resolved the issue for me (the router has a rather strange option that allows encryption via WPA and WPA2 in parallel, and this option was enabled until now, it seems this caused confusion somewhere in ath9k or a related module).

I think this information could help to isolate the bug (if hickups upon WPA and WPA2 in parallel are considered a bug).

[Philipp Raich (p-raich)]

I have to correct myself: Actions taken above did improve, but NOT resolve the issue. Freezes still occur every now and then. Performance is rather bad as well, but could be because of the weak signal anyway.

The AVM-Router will soon be replaced by my own one that runs dd-wrt as soon as I get it back, and i really hope this will improve the situation, as I heard of people having freezes with a Fritz!Box/ath9k combination, although the module should never crash, no matter how borked incoming traffic is, and further it should never hang the whole kernel.

Analyzing the traffic with wireshark didn't reveal anything suspicious to me. On WPA2-only it now only happens if the (incoming) throughput is "rather high" for some time (typically download/stream/etc. and not necessarily max throughput), and as it seems there is no correlation to the overall amount of data received.

I as well compiled the latest state of compat-wireless, or other kernel-versions up to 3.1-rc6, it did not change a thing, freezes could even occurr seconds after rebooting (WPA+WPA2 in parallel), and did NEVER occur when only using the ethernet-connection.

I tried to enable debug-messages in ath9k to pin down what happens before the systems hangs, but I was not successful enabling them while following the according instructions I found (the according flag was generously ignored, the original developer-pages for the module at kernel.org were down at the time).

If someone has an advice what else I could do to help pin down/fix this bug (as long as I have this AVM-Router at my place) please let me know.

[Philipp Raich (p-raich)]

problem persists with a different router running dd-wrt, (verified with compat-wireless-tarball '2011-10-10' and '2011-09-19')

cranking up the TX-Power of the router and thus improving the signal had a positive effect, i.e. freezes almost disappeared, so it seems as if it could be related to the weak signal, at least in my (obscure) case. Nevertheless, i will turn to the ath9k-devel mailing list to see if somebody can tell me, how/where to find the cause for this.

[Joseph Salisbury (jsalisbury)]

Would it also be possible for you to test the latest upstream kernel? It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[luck (luckcenter-info)]

Hello

After my post on 2011-09-02, it had not frozen again. For me it seems solved. I didn't try to rollback my changes to check if it freezes again... I am afraid to do that and get the bug back :)

regards

Lucimar

[Philipp Raich (p-raich)]

Confirmed with mainline build (3.1.0-999-generic). Removed tag.

[Actually, I already thought of checking upstream so I built the upstream kernel from git (3.1-rc6) before, and I mentioned it above. And I additionally checked twice with the newest release of compat-wireless, the last time with the tarball from 2011-10-10 (from yesterday, checked today, mentioned a few hours ago), which should be even ahead of the kernel a few more days if not weeks... So I am very confident, that the bug was never fixed and isn't even known of upstream, hence I turned to the ath9k-devel mailing liste a few hours ago]

[Marc Pollet (mpollet-123)]

Dear All,

I have the problem since I've upgraded to Ubuntu 11.04 (slow and network freezes often)
In 11.10 it's no longer slow and the network freezes less often (e.g. can use skype now)

To

[Marc Pollet (mpollet-123)]

Dear All,

I have the problem since I've upgraded to Ubuntu 11.04 (slow and network freezes often)
In 11.10 it's no longer slow and the network freezes less often (e.g. I can use skype now)

To generate the problem I usually open multiple data connections which need big throughput
(i.e. youtubes + streetview)

Once the network has frozen, pinging the router gives no respons
Network manager doesn't signal a problem with wifi (with Networkmanager in debug mode there is no trace of error or warning)
De-blocking can be done by just reconnecting to the same wifi router

I would love to contribute with a clear error message but I don't know where exactly to look

KR
µ

[penalvch (penalvch)]

luck, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, 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 (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. 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-v3.12

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

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.

[luck (luckcenter-info)]

Hi Christopher

No, it is no longer an issue or me. I sold that laptop and bought a new one.
Thanks a lot for your attention.

regards

Lucimar

Em Quinta-feira, 21 de Novembro de 2013 1:52, Christopher M. Penalver <email address hidden> escreveu:

luck, this bug was reported a while ago and there hasn't been any
activity in it recently. We were wondering if this is still an issue? If
so, could you please test for this with the latest development release
of Ubuntu? ISO images are available from http://cdimage.ubuntu.com
/daily-live/current/ .

If it remains an issue, 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 (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. 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-v3.12

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

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.

** Tags added: bios-outdated-1.11 needs-upstream-testing

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

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

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You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/838016

Title:
  AR9287 hangs  on ubuntu 11.04

Status in “linux” package in Ubuntu:
  Incomplete
Status in “linux” package in Fedora:
  Invalid

Bug description:
  hello

  my acer ao722 is freezing while using the wireless connection. I tried
  several solutions and linux distributions and all of them hangs. now I
  installed the kernel 2.6.39 without luck. It hangs with the standard
  image from the cd as well as it fully updated.

  thanks a lot

  luck

  ProblemType: Bug
  DistroRelease: Ubuntu 11.04
  Package: software-center 4.0.5
  Uname: Linux 2.6.39-02063904-generic x86_64
  Architecture: amd64
  Date: Wed Aug 31 08:44:12 2011
  InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  PackageArchitecture: all
  ProcEnviron:
   LANGUAGE=en_US:en
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: software-center
  UpgradeStatus: No upgrade log present (probably fres...

[penalvch (penalvch)]

luck, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/838016/comments/58 regarding you no longer have the hardware. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.