Bug 429658
| Summary: | cmd: iwlist wlan0 scan - fails to detect APs using "ath5k" driver | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | johnnymack <pikiwiki> | ||||
| Component: | kernel | Assignee: | John W. Linville <linville> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | low | ||||||
| Version: | 8 | CC: | cebbert, davej, dcbw | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | All | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2008-01-24 20:07:10 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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Created attachment 292477 [details]
supporting data from lspci, dmesg, lsmod,
kernel driver issue; not wireless tools I expect. Please confirm that the problem persists with later kernels: http://koji.fedoraproject.org/koji/buildinfo?buildID=31896 OK, I went to koji and pulled "kernel-2.6.23.14-111.fc8.i686.rpm", installed
that, rebooted, retried command: iwlist wlan0 scan
No improvement... still fails same way. See session snippet:
obdurate[101]# ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:933 errors:0 dropped:0 overruns:0 frame:0
TX packets:933 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1948240 (1.8 MiB) TX bytes:1948240 (1.8 MiB)
virbr0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
inet addr:192.168.122.1 Bcast:192.168.122.255 Mask:255.255.255.0
inet6 addr: fe80::200:ff:fe00:0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:29 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:5200 (5.0 KiB)
wlan0 Link encap:Ethernet HWaddr 00:1B:11:C9:29:08
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
wmaster0 Link encap:UNSPEC HWaddr
00-1B-11-C9-29-08-08-14-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
obdurate[102]# iwlist wlan0 scan
wlan0 No scan results
obdurate[103]# uname -a
Linux obdurate.egf-net 2.6.23.14-111.fc8 #1 SMP Thu Jan 17 18:18:57 EST 2008
i686 athlon i386 GNU/Linux
obdurate[104]#
Does the AP show up if you do three or four 'iwlist wlan0 scan' commands? It's not expected that every AP will show up every scan, just because that's the way wireless works. If you don't get the AP after three or four consecutive iwlist scans, then there's likely some issue (power calibration, whatever). Yes, I have tried that 7, 8, 9 times, in fact. I am aware that when scanning, not every station shows up on every scan. I see this all the time using a Toshiba laptop on the road. But, this equipment is setup all in the same 11'X 10' room now: 1) a Toshiba laptop with the D-Link DWL-G650 cardbus adapter. a working box running Fedora 6 with madwifi-0.9.3.3. The expected results shown above in the "opened by.." remarks are iwlist scan results from this system. 2) an AMD 2100+ box with the D-Link WDA-2320 adapter. the failing box which has F-8 installed and fails EVERY time iwlist scans. But, this same h/w has F-7.92 installed on another partition with madwifi-0.9.3.3. When F-7.92 is booted up, this same hardware will run the WDA-2320 adapter wireless configuration connecting perfectly with the DI-624 [well, after hacking around a broken NM; I have my own script combining: ifconfig, iwlist/scan, iwconfig, wpa_supplicant, dhclient, route/add ] 3) a D-Link DI-624 wireless router. working for last 24 months; using WPA-PSK for the last 6. What else can I conclude? F-8 has "ath5k" only F-7.92 has madwifi-0.9.3.3 [installed locally from tarball] wireless-tools-29-0.2.pre22 on F-8 wireless-tools-29 on F-7.92 With the testing of the equipment that I have, using other versions of Fedora, I conclude it's unlikely to be a hardware issue.. on either the WDA-2320 or the DI-624. jm |
Description of problem: command: iwlist ath0 scan ..fails to return list of APs. Version-Release number of selected component (if applicable): wireless-tools-29-0.2.pre22.fc8 kernel-2.6.23.9-85.fc8 How reproducible: with driver ath5k loaded, try command: iwlist wlan0 scan Steps to Reproduce: 1. install hardware PCI card D-Link WDA-2320 RangeBooster G Desktop Adapter 2. boot F-8 kernel-2.6.23.9-85.fc8 3. run command at shell prompt: iwlist wlan0 scan Actual results: wlan0 No scan results (having 2 APs within range) Expected results: (from another computer in the same room) ath0 Scan completed : Cell 01 - Address: 00:13:46:B8:68:44 ESSID:"cuervo73" Mode:Master Frequency:2.427 GHz (Channel 4) Quality=54/70 Signal level=-41 dBm Noise level=-95 dBm Encryption key:on Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s 48 Mb/s; 54 Mb/s Extra:bcn_int=100 IE: WPA Version 1 Group Cipher : WEP-40 Pairwise Ciphers (1) : WEP-40 Authentication Suites (1) : PSK Cell 02 - Address: 00:06:25:BF:DB:21 ESSID:"" Mode:Master Frequency:2.412 GHz (Channel 1) Quality=176/70 Signal level=-175 dBm Noise level=-95 dBm Encryption key:off Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s Extra:bcn_int=100 Additional info: This worked with madwifi-0.9.3.3 under Fedora 8 Test 3 This may be an "ath5k" kernel driver issue instead; not sure