[Bug 543343] [NEW] ath5k driver misspells the ESSID for ad-hoc networks

[Stefan Richter]

Public bug reported:

I tried to set up a wireless ad-hoc network with my atheros wlan chip.
But I did not get it work because the ath5k driver seems to be corrupt.
After a few seconds the ESSID changed to a random value.

The following script reproduces the error:
ifconfig wlan0 down
iwconfig wlan0 essid "WLAN" mode Ad-Hoc channel 3
ifconfig wlan0 up

iwconfig wlan0  # correct output

ifconfig wlan0 down
iwconfig wlan0 essid "WLAN" mode Ad-Hoc channel 3
ifconfig wlan0 up

sleep 3

iwconfig wlan0  # incorrect output

I got the following output:
root at ubuntu:/home/ubuntu/Desktop# ./wlan-script.sh 
wlan0     IEEE 802.11bg  ESSID:"WLAN"  
          Mode:Ad-Hoc  Frequency:2.422 GHz  Cell: Not-Associated   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          
wlan0     IEEE 802.11bg  ESSID:"\xAA\x9A\xC2\x87CV\xA1\xB4c/\xFD\x9E\x0D\x80\xFE%\x0E \x14V\xB2+s\xA8\x01\xA9;\xA4\xA2\x92iM"  
          Mode:Ad-Hoc  Frequency:2.422 GHz  Cell: Not-Associated   
          Tx-Power=20 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off

As you can see the ESSID changed to a random string after a delay of 3
seconds. So I can not set up a ad-hoc network ...

Additional informations:
- bug in Ubuntu lucid beta 1 (live system at pen drive)
- lspci | grep Atheros
01:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01)
- lsmod | grep ath
ath5k                 121856  0 
mac80211              204598  1 ath5k
ath                     7611  1 ath5k
cfg80211              126645  3 ath5k,mac80211,ath
led_class               2864  3 ath5k,asus_laptop,sdhci

best regards

ProblemType: Bug
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ubuntu     3111 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'NVidia'/'HDA NVidia at 0xdc6b8000 irq 22'
   Mixer name	: 'Realtek ALC660-VD'
   Components	: 'HDA:10ec0660,10430000,00100001 HDA:15433155,10431335,00100700'
   Controls      : 18
   Simple ctrls  : 12
Date: Sun Mar 21 11:27:26 2010
DistroRelease: Ubuntu 10.04
LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100318)
Lsusb:
 Bus 002 Device 002: ID 0b05:1712 ASUSTek Computer, Inc. BT-183 Bluetooth 2.0+EDR adapter
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 004: ID 05e1:0501 Syntek Semiconductor Co., Ltd DC-1125 Webcam
 Bus 001 Device 002: ID 0d7d:1624 Phison Electronics Corp. 
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK Computer INC. F3T
Package: linux-image-2.6.32-16-generic 2.6.32-16.25
ProcCmdLine: BOOT_IMAGE=(loop)/casper/vmlinuz boot=casper iso-scan/filename=/boot/iso/lucid-desktop-i386.iso quiet splash noeject noprompt --
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
Regression: No
RelatedPackageVersions: linux-firmware 1.32
Reproducible: Yes
SourcePackage: linux
TestedUpstream: Yes
Uname: Linux 2.6.32-16-generic i686
dmi.bios.date: 06/01/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F3TAS.226
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: F3T
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: 1.00
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTek Computer INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF3TAS.226:bd06/01/2007:svnASUSTeKComputerINC.:pnF3T:pvr1.0:rvnASUSTeKComputerINC.:rnF3T:rvr1.00:cvnASUSTekComputerINC.:ct10:cvr1.0:
dmi.product.name: F3T
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer INC.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: apport-bug i386 lucid

-- 
ath5k driver misspells the ESSID for ad-hoc networks
https://bugs.launchpad.net/bugs/543343
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.