Ubuntu
linux package

[ath9k] connection lost after 30MB download

Bug #737067 reported by Oleksij Rempel on 2011-03-17

This bug affects 9 people

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Expired	Undecided	Unassigned

Bug Description

This is regression against previous stable ubuntu relase. And easy to reproduce:
- switch to wireless connection.
- start to download any thing.
- after about 30MB connection will be lost
- to workaround i need to reconnect on every 30MB

With connection lost i mean: ifconfig show assigned ip; iwconfig show assigned AP.
There is nothing what tell about error or lost packets. Just do not working.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-6-generic 2.6.38-6.34
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.38-6.34-generic 2.6.38-rc7
Uname: Linux 2.6.38-6-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: lex 1465 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf7db8000 irq 44'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,10438398,00100004'
   Controls : 10
   Simple ctrls : 6
Date: Thu Mar 17 20:10:40 2011
HibernationDevice: RESUME=UUID=a63e5b96-e532-4ba6-92b7-d77318a48e66
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
MachineType: ASUSTeK Computer INC. 1005HA
ProcEnviron:
LANGUAGE=de_DE:de:en_GB:en
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-6-generic root=UUID=425014a2-7247-459c-8e13-9595b8fc5507 ro crashkernel=384M-2G:64M,2G-:128M quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-6-generic N/A
linux-backports-modules-2.6.38-6-generic N/A
linux-firmware 1.48
SourcePackage: linux
UpgradeStatus: Upgraded to natty on 2011-01-04 (72 days ago)
dmi.bios.date: 02/26/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1401
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1005HA
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1401:bd02/26/2010:svnASUSTeKComputerINC.:pn1005HA:pvrx.x:rvnASUSTeKComputerINC.:rn1005HA:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1005HA
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.

Tags:

Revision history for this message

Oleksij Rempel (olerem) wrote on 2011-03-17:

AcpiTables.txt Edit (169.5 KiB, text/plain; charset="utf-8")
AlsaDevices.txt Edit (410 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (52.3 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (257 bytes, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (1.3 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (9.0 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (3.9 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.8 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (523 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (10.6 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (431 bytes, text/plain; charset="utf-8")
PciMultimedia.txt Edit (612 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcCpuinfo_.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.5 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (188 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (111.2 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (249.2 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (252.0 KiB, text/plain; charset="utf-8")

RedSingularity (redsingularity) on 2011-03-17

affects:

linux (Ubuntu) → network-manager (Ubuntu)

Revision history for this message

Oleksij Rempel (olerem) wrote on 2011-03-18:

With all respect. This is kernel bug.

affects:

network-manager (Ubuntu) → linux (Ubuntu)

Revision history for this message

Oleksij Rempel (olerem) wrote on 2011-03-25:

This Bug also affect "Fujitsu LIFEBOOK A530"

Revision history for this message

Alfrenovsky (alfredo-fing) wrote on 2011-04-30:

ALso affects Asus1215n

01:00.0 Ethernet controller: Atheros Communications AR8152 v2.0 Fast Ethernet (rev c1)
Subsystem: ASUSTeK Computer Inc. Device 8468
Kernel driver in use: atl1c
Kernel modules: atl1c
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
Subsystem: AzureWave Device 1089
Kernel driver in use: ath9k
Kernel modules: ath9k

The problem is a lack of traffic after some traffic (no alwais the same amount) without any warning in the logs
The weird thing is that in last maverick kernel I had this exact problem with my wired ethernet and after the natty upgrade (kernel 2.6.38-8-generic) the ethernet now works perfect and the problem is with the wireless card.

Alfrenovsky (alfredo-fing) on 2011-05-01

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

sharp (sharp) wrote on 2011-05-12:

This bug also affects Asus EeePc 1201T.

I have the same issue with wireless connection. After some huge amount of traffic at high speed it just drops. Networkmanager, ifconfig and iwconfig show that everything is ok, but the network is broken. No pings, etc. If I disable and reenable wireless it will reconnect and everything will work until another huge amount of traffic (usually torrents). When connection drops there is no trace of it in syslog/dmesg, so I can't provide any logs.

The problem appeared after a fresh-reinstall to natty amd64 from maverick i386. On maverick i386 wireless worked well. So it is a regression.

Later I will test the issue on my wired connection and also using the i386 livecd.

uname -a:
Linux starbuck 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

lspci:
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)

lshw:
  *-network
       description: Wireless interface
       product: AR9285 Wireless Network Adapter (PCI-Express)
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 01
       serial: 74:f0:6d:73:df:1b
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=2.6.38-8-generic firmware=N/A ip=172.16.31.4 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:16 memory:fbef0000-fbefffff

sharp (sharp) on 2011-05-12

tags:

added: amd64

Revision history for this message

Oleksij Rempel (olerem) wrote on 2011-05-12:

as workaround you can use one of newest kernels from here:
http://kernel.ubuntu.com/~kernel-ppa/mainline/v2.6.39-rc5-oneiric/
or compile one by your self.

Revision history for this message

penalvch (penalvch) wrote on 2012-03-31:

Oleksij Rempel, thank you for reporting this and helping make Ubuntu better. 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? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/ .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

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

Also, if you could test the latest upstream kernel available that would be great. 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.

Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-05-30:

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

Changed in linux (Ubuntu):
status:	Incomplete → Expired

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[ath9k] connection lost after 30MB download

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