> The athros chip in my Fujitsu notebook as stopped working after an > update (Debian squeeze) about a month ago. It uses the ath5k driver. > uname -a returns Linux WideBook 2.6.32-trunk-amd64 #1 SMP Sun Jan 10 > 22:40:40 UTC 2010 x86_64 GNU/Linux > > It appears that iwconfig can't set the essid and the password reliably. > When I issue iwconfig ath0 I usually get garbage in the essid and > password fields. This can be after setting both (with iwconfig) > apparently successfully. > > This notebook is dual boot so I know that the hardware is working. > > I have put some debug output in the wireless-tools script in if-pre-up.d > so that I can see that the essid and password fields seem to 'take' for > a short time, then revert to garbage. > > Does any of this sound familiar? Is this a known problem? > > Regards, > > Jim Ham > I've attached the modified script /etc/network/if-pre-up.d/wireless-tools. I added a couple of echo statements to the script to make sure that the environmental variables were being passed correctly. Then I added two instances of "iwconfig ath0" at the bottom of the script. I then created an new script /etc/network/if-pre-up.d/zz that only contains the command iwconfig ath0. Here is the result of an ifdown followed by an ifup: WideBook:/etc/network# ifdown ath0 There is already a pid file /var/run/dhclient.ath0.pid with pid 7879 killed old client process, removed PID file Internet Systems Consortium DHCP Client V3.1.3 Copyright 2004-2009 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/ath0/00:1b:9e:56:b1:27 Sending on LPF/ath0/00:1b:9e:56:b1:27 Sending on Socket/fallback DHCPRELEASE on ath0 to 192.168.0.1 port 67 Reloading /etc/samba/smb.conf: smbd only. WideBook:/etc/network# ifup ath0 iface ath0 wireless_key abcd-ef01-2345-6789-abcd-ef01-23 essid PorcineAssociates eval /sbin/iwconfig ath0 key abcd-ef01-2345-6789-abcd-ef01-23 /sbin/iwconfig ath0 essid PorcineAssociates ath0 IEEE 802.11abg ESSID:"PorcineAssociates" Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:ABCD-EF01-2345-6789-ABCD-EF01-23 Power Management:off ath0 IEEE 802.11abg ESSID:")\x9E\xDD\xB1\xF2<#\xC6\x05\x988 \x9B;Xbs\xB6=\xE0\x8ARk\xDBb\xFEA\xBE\xDB\xBBO\x8F\xE5" Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:ABCD-EF01-2345-6789-ABCD-EF01-23 Power Management:off ath0 IEEE 802.11abg ESSID:")\x9E\xDD\xB1\xF2<#\xC6\x05\x988 \x9B;Xbs\xB6=\xE0\x8ARk\xDBb\xFEA\xBE\xDB\xBBO\x8F\xE5" Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Internet Systems Consortium DHCP Client V3.1.3 Copyright 2004-2009 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/ath0/00:1b:9e:56:b1:27 Sending on LPF/ath0/00:1b:9e:56:b1:27 Sending on Socket/fallback DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 5 DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 6 DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 8 DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 11 DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 12 DHCPDISCOVER on ath0 to 255.255.255.255 port 67 interval 12 No DHCPOFFERS received. No working leases in persistent database - sleeping. Starting portmap daemon...Already running.. Starting NFS common utilities: statd. WideBook:/etc/network# What I have discovered is that if the ESSID is not active, iwconfig sets it correctly and it sticks. If the ESSID is one that is locally present, iwconfig seems to set it, but it almost immediately reverts to garbage. For instance if I issue the command: iwconfig ath0 essid PorcineAssociate All works. Here is an example: WideBook:/etc/network# iwconfig ath0 essid PorcineAssociate WideBook:/etc/network# iwconfig ath0 ath0 IEEE 802.11abg ESSID:"PorcineAssociate" Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off WideBook:/etc/network# iwconfig ath0 essid PorcineAssociates WideBook:/etc/network# iwconfig ath0 ath0 IEEE 802.11abg ESSID:"\xEDl\x96\xDF\xA9\xB9\xA5\xAER\xDEI \x8D6\xAB\x00\xEC\xE9\xE1w;LR\x9DJ\x93[%N\xAA\xB43\x97" Mode:Managed Frequency:2.417 GHz Access Point: Not-Associated Tx-Power=20 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off WideBook:/etc/network# PorcineAssociates exists and is my local network ID. PorcineAssociate does not exist. I have repeated this experiment with my neighbors network names and I observe the same thing: if the network exists, the name changes to garbage after a short time. Here's the Athros entry from lspic -vv: 07:00.0 Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01) Subsystem: Fujitsu Limited. Device 139c Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0, Cache Line Size: 64 bytes Interrupt: pin A routed to IRQ 19 Region 0: Memory at fe2f0000 (64-bit, non-prefetchable) [size=64K] Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit- Address: 00000000 Data: 0000 Capabilities: [60] Express (v1) Legacy Endpoint, MSI 00 DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <128ns, L1 <2us ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset- DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr+ UncorrErr+ FatalErr- UnsuppReq+ AuxPwr- TransPend- LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us ClockPM- Surprise- LLActRep- BwNot- LnkCtl: ASPM Disabled; RCB 128 bytes Disabled- Retrain- CommClk+ ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- Capabilities: [90] MSI-X: Enable- Count=1 Masked- Vector table: BAR=0 offset=00000000 PBA: BAR=0 offset=00000000 Capabilities: [100 v1] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr+ BadTLP- BadDLLP+ Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- AERCap: First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [140 v1] Virtual Channel Caps: LPEVC=0 RefClk=100ns PATEntrySize=0 Arb: Fixed- WRR32- WRR64- WRR128- 100ns- - - onfig- TableOffset=0 Ctrl: ArbSelect=Fixed Status: InProgress- VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans- Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256- Fixed- RR32- Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff Status: NegoPending- InProgress- Kernel driver in use: ath5k It's all very confusing to me! Regards, Jim Ham > >
Attachment:
wireless-tools
Description: application/shellscript
Attachment:
zz
Description: application/shellscript
