#10080 NORM Not Tri: XO-1.5: "iwlist scanning" reports no networks after some time
Zarro Boogs per Child
bugtracker at laptop.org
Fri Mar 19 16:34:44 EDT 2010
#10080: XO-1.5: "iwlist scanning" reports no networks after some time
--------------------------+-------------------------------------------------
Reporter: sascha_silbe | Owner: dsaxena
Type: defect | Status: new
Priority: normal | Milestone: Not Triaged
Component: kernel | Version: not specified
Keywords: libertas | Next_action: diagnose
Verified: 0 | Deployment_affected:
Blockedby: | Blocking:
--------------------------+-------------------------------------------------
On XO-1.5 CL1/D4 running OS114 with olpc-2.6.31 kernel (commit bca5e9d)
and libertas firmware 9.70.7p0 (md5sum b4f8be61e19780a14836f146c538c5dd),
I noticed the following while trying to figure out why the XO-1.5 won't
connect to my access point:
Directly after bootup, "iwlist scanning" works fine, but after some time
it reports no networks at all anymore:
{{{
[olpc at xo-a7-2e-ab ~]$ iwlist scanning
lo Interface doesn't support scanning.
eth0 Scan completed :
Cell 01 - Address: 00:12:2A:06:49:18
ESSID:"Sinus W 500V"
Mode:Managed
Frequency:2.422 GHz (Channel 3)
Quality=86/100 Signal level=-64 dBm Noise level=-96
dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 02 - Address: 00:04:0E:8D:6C:B3
ESSID:"Gotthilf"
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality=38/100 Signal level=-90 dBm Noise level=-96
dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: 00:12:BF:A8:1F:B5
ESSID:""
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality=41/100 Signal level=-89 dBm Noise level=-96
dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Cell 04 - Address: 00:1C:F0:00:CF:39
ESSID:"Sim"
Mode:Managed
Frequency:2.432 GHz (Channel 5)
Quality=73/100 Signal level=-73 dBm Noise level=-96
dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Cell 05 - Address: C2:CE:46:78:A8:A3
ESSID:"hpsetup"
Mode:Ad-Hoc
Frequency:2.437 GHz (Channel 6)
Quality=57/100 Signal level=-82 dBm Noise level=-96
dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s
Cell 06 - Address: 00:03:C9:A3:7E:09
ESSID:"WLAN"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality=41/100 Signal level=-89 dBm Noise level=-96
dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Cell 07 - Address: 00:1C:4A:04:C1:68
ESSID:"FRITZ!Box Fon WLAN 7170"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality=85/100 Signal level=-65 dBm Noise level=-96
dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
[olpc at xo-a7-2e-ab ~]$ iwlist scanning
lo Interface doesn't support scanning.
eth0 No scan results
[olpc at xo-a7-2e-ab ~]$
}}}
After another scan it lists some or all of the networks again, so I
suspect it's expiring the networks faster than the rescans happen.
--
Ticket URL: <http://dev.laptop.org/ticket/10080>
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