ath9k disassociates when scanning
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
My wireless network connection disassociates and reassociates every 120sec. It happens pretty reliably - upt to 95% of the time when I'm actively using the connection (e.g. participating in a discussion in Mumble or cloning a git tree from a remote server). The disassociate/
Based on feedback from other people in my group, the problem may be limited to the ath9k driver.
The 120sec number is suspicious; I believe NetworkManager runs a background scanning thread at a 120sec interval. I can also reproduce the problem by manually initiating a scan via 'iwlist wlan0 scanning'.
The problem started when I upgraded from 11.04 to 11.10 beta 1.
The reason code given in syslog is almost always '10', though I have seen a very occasional '2'. Here is an example of what I get in syslog each time this happens:
Sep 19 11:28:11 steve-laptop kernel: [ 8383.513754] wlan0: deauthenticated from 00:27:0d:71:8f:80 (Reason: 10)
Sep 19 11:28:11 steve-laptop wpa_supplicant[
Sep 19 11:28:11 steve-laptop NetworkManager[
Sep 19 11:28:11 steve-laptop kernel: [ 8383.560356] cfg80211: All devices are disconnected, going to restore regulatory settings
Sep 19 11:28:11 steve-laptop kernel: [ 8383.560368] cfg80211: Restoring regulatory settings
Sep 19 11:28:11 steve-laptop kernel: [ 8383.560402] cfg80211: Calling CRDA to update world regulatory domain
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569424] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569435] cfg80211: World regulatory domain updated:
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569440] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569449] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569457] cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569464] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569472] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 19 11:28:11 steve-laptop kernel: [ 8383.569479] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep 19 11:28:11 steve-laptop NetworkManager[
Sep 19 11:28:13 steve-laptop wpa_supplicant[
Sep 19 11:28:13 steve-laptop NetworkManager[
Sep 19 11:28:13 steve-laptop wpa_supplicant[
Sep 19 11:28:13 steve-laptop kernel: [ 8385.826720] wlan0: authenticate with 00:27:0d:71:8f:80 (try 1)
Sep 19 11:28:13 steve-laptop kernel: [ 8385.828715] wlan0: authenticated
Sep 19 11:28:13 steve-laptop wpa_supplicant[
Sep 19 11:28:13 steve-laptop kernel: [ 8385.832945] wlan0: associate with 00:27:0d:71:8f:80 (try 1)
Sep 19 11:28:13 steve-laptop kernel: [ 8385.836196] wlan0: RX ReassocResp from 00:27:0d:71:8f:80 (capab=0x431 status=0 aid=5)
Sep 19 11:28:13 steve-laptop kernel: [ 8385.836205] wlan0: associated
Sep 19 11:28:13 steve-laptop NetworkManager[
Sep 19 11:28:13 steve-laptop NetworkManager[
Sep 19 11:28:13 steve-laptop wpa_supplicant[
Sep 19 11:28:13 steve-laptop wpa_supplicant[
Sep 19 11:28:13 steve-laptop NetworkManager[
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-
ProcVersionSign
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelMo
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/pcmC0D0p: steve 1782 F...m pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xdb500000 irq 46'
Mixer name : 'Realtek ALC889A'
Components : 'HDA:10ec0885,
Controls : 33
Simple ctrls : 19
Date: Mon Sep 19 10:56:51 2011
HibernationDevice: RESUME=
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
MachineType: Apple Inc. MacBookPro3,1
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=
RelatedPackageV
linux-
linux-
linux-firmware 1.60
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to oneiric on 2011-09-02 (17 days ago)
dmi.bios.date: 03/05/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP31.88Z.
dmi.board.
dmi.board.name: Mac-F4238BC8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.
dmi.modalias: dmi:bvnAppleInc
dmi.product.name: MacBookPro3,1
dmi.product.
dmi.sys.vendor: Apple Inc.
Changed in linux (Ubuntu): | |
status: | New → Confirmed |
Thank you for taking the time to file a bug report on this issue.
However, given the number of bugs that the Kernel Team receives during any development cycle it is impossible for us to review them all. Therefore, we occasionally resort to using automated bots to request further testing. This is such a request.
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