No wifi0 after bootup
Andreas Nolda
andreas.nolda at staff.hu-berlin.de
Fri Mar 10 03:58:23 EST 2006
Hi everybody,
I have the following issue. After bootup I have a wlan0 interface,
but no wifi0 interface; pinging the AP does not work. Reloading the
hostap modules manually, however, fixes the problem: I get both
interfaces and can ping the AP.
I am running Kubuntu Breezy on a Thinkpad T23 with an IBM High Rate
Wireless LAN mini-PCI card. My /etc/network/interfaces file contains:
auto lo
iface lo inet loopback
address 127.0.0.1
netmask 255.0.0.0
mapping hotplug
script grep
map wlan0
iface eth0 inet static
address 141.20.148.224
netmask 255.255.254.0
iface wlan0 inet static
address 192.168.0.2
netmask 255.255.255.0
wireless-mode managed
wireless-essid XXXXXXXX
wireless-key restricted XXXXXXXXXXXXXXXXXXXXXXXXXX
gateway 192.168.0.1
orinoco_pci being blacklisted in /etc/hotplug/blacklist.d/local, the
following hostap modules have been loaded after bootup:
hostap
hostap_pci
hostap_crypt_wep
The output of ifconfig lists a wlan0 interface, but no wifi0
interface:
irda0 Link encap:IrLAP HWaddr 00:00:00:00
UP RUNNING NOARP MTU:2048 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:125 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:8
RX bytes:0 (0.0 b) TX bytes:3988 (3.8 KiB)
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:10 errors:0 dropped:0 overruns:0 frame:0
TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:868 (868.0 b) TX bytes:868 (868.0 b)
wlan0 Link encap:UNSPEC HWaddr
00-20-E0-89-93-DE-00-00-00-00-00-00-00-00-00-00
inet addr:192.168.0.2 Bcast:192.168.0.255
Mask:255.255.255.0
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:24 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:11 Memory:d8ac2000-d8ac3000
And iwconfig outputs both a wlan0 and a wlan1 interface:
wlan0 IEEE 802.11b ESSID:"XXXXXXXX"
Mode:Managed Frequency:2.412 GHz Access Point:
00:03:C9:8B:C3:B9
Bit Rate:2 Mb/s Sensitivity=1/3
Retry min limit:8 RTS thr:off Fragment thr:off
Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX Security
mode:restricted
Power Management:off
wlan1 IEEE 802.11b ESSID:"XXXXXXXX"
Mode:Managed Frequency:2.412 GHz Access Point:
00:03:C9:8B:C3:B9
Bit Rate:2 Mb/s Sensitivity=1/3
Retry min limit:8 RTS thr:off Fragment thr:off
Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX Security
mode:restricted
Power Management:off
Link Quality=46/70 Signal level=-49 dBm Noise level=-96
dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:61 Missed beacon:0
So pinging the AP does not work.
The relevant syslog part is:
Mar 10 08:56:43 localhost kernel: [4294704.105000] hostap_crypt:
registered algorithm 'NULL'
Mar 10 08:56:43 localhost kernel: [4294704.132000] hostap_pci: 0.4.1 -
2005-05-22 (Jouni Malinen <jkmaline at cc.hut.fi>)
Mar 10 08:56:43 localhost kernel: [4294704.139000] ACPI: PCI Interrupt
0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
Mar 10 08:56:43 localhost kernel: [4294704.146000] hostap_pci:
Registered netdevice wifi0
Mar 10 08:56:43 localhost kernel: [4294704.146000] wifi0: Original COR
value: 0x21
Mar 10 08:56:43 localhost kernel: [4294704.345000] prism2_hw_init:
initialized in 195 ms
Mar 10 08:56:43 localhost kernel: [4294704.346000] wifi0: NIC:
id=0x8013 v1.0.0
Mar 10 08:56:43 localhost kernel: [4294704.346000] wifi0: PRI: id=0x15
v1.1.1
Mar 10 08:56:43 localhost kernel: [4294704.346000] wifi0: STA: id=0x1f
v1.7.4
Mar 10 08:56:43 localhost kernel: [4294704.350000] wifi0: Intersil
Prism2.5 PCI: mem=0xec000000, irq=11
Mar 10 08:56:43 localhost kernel: [4294704.356000] wifi0: registered
netdevice wlan0
[...]
Mar 10 08:56:43 localhost kernel: [4294706.690000] irda_init()
Mar 10 08:56:43 localhost kernel: [4294706.690000] NET: Registered
protocol family 23
Mar 10 08:56:43 localhost kernel: [4294707.546000] ip_tables: (C)
2000-2002 Netfilter core team
Mar 10 08:56:43 localhost kernel: [4294707.587000] ip_conntrack
version 2.1 (3067 buckets, 24536 max) - 248 bytes per conntrack
Mar 10 08:56:43 localhost kernel: [4294709.278000] prism2: wlan0:
operating mode changed 3 -> 2
Mar 10 08:56:43 localhost kernel: [4294709.309000] hostap_crypt:
registered algorithm 'WEP'
Mar 10 08:56:43 localhost kernel: [4294709.782000] wlan0: LinkStatus=1
(Connected)
Mar 10 08:56:43 localhost kernel: [4294709.782000] wlan0: LinkStatus:
BSSID=00:03:c9:8b:c3:b9
Mar 10 08:56:43 localhost kernel: [4294710.582000] pnp: Device 00:0b
disabled.
Mar 10 08:56:43 localhost kernel: [4294710.583000] pnp: Device 00:0b
activated.
[...]
Mar 10 08:56:58 localhost kernel: [4294729.749000] wlan0: invalid
skb->cb magic (0x00000000, expected 0xf08a36a2)
After reloading the hostap modules, however, everything is fine. Now
the output of ifconfig is:
irda0 Link encap:IrLAP HWaddr 00:00:00:00
UP RUNNING NOARP MTU:2048 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:494 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:8
RX bytes:0 (0.0 b) TX bytes:15800 (15.4 KiB)
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:17 errors:0 dropped:0 overruns:0 frame:0
TX packets:17 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1599 (1.5 KiB) TX bytes:1599 (1.5 KiB)
wifi0 Link encap:UNSPEC HWaddr
00-20-E0-89-93-DE-00-00-00-00-00-00-00-00-00-00
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1083 (1.0 KiB) TX bytes:1351 (1.3 KiB)
Interrupt:11 Memory:d8b2c000-d8b2d000
wlan0 Link encap:Ethernet HWaddr 00:20:E0:89:93:DE
inet addr:192.168.0.2 Bcast:192.168.0.255
Mask:255.255.255.0
inet6 addr: fe80::220:e0ff:fe89:93de/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:9 errors:0 dropped:0 overruns:0 frame:0
TX packets:14 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:921 (921.0 b) TX bytes:1351 (1.3 KiB)
Interrupt:11 Memory:d8b2c000-d8b2d000
And iwconfig outputs:
wifi0 IEEE 802.11b ESSID:"XXXXXXXX"
Mode:Managed Frequency:2.412 GHz Access Point:
00:03:C9:8B:C3:B9
Bit Rate:11 Mb/s Sensitivity=1/3
Retry min limit:8 RTS thr:off Fragment thr:off
Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX Security
mode:restricted
Power Management:off
wlan0 IEEE 802.11b ESSID:"XXXXXXXX"
Mode:Managed Frequency:2.412 GHz Access Point:
00:03:C9:8B:C3:B9
Bit Rate:11 Mb/s Sensitivity=1/3
Retry min limit:8 RTS thr:off Fragment thr:off
Encryption key:XXXX-XXXX-XXXX-XXXX-XXXX-XXXX-XX Security
mode:restricted
Power Management:off
Link Quality=48/70 Signal level=-47 dBm Noise level=-96
dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:11 Missed beacon:0
The corresponding syslog part is:
Mar 10 08:58:45 localhost kernel: [4294836.578000] wlan0: LinkStatus=1
(Connected)
Mar 10 08:58:45 localhost kernel: [4294836.579000] wlan0: LinkStatus:
BSSID=00:03:c9:8b:c3:b9
[...]
Mar 10 08:58:50 localhost kernel: [4294842.144000] wlan0: invalid
skb->cb magic (0x00000000, expected 0xf08a36a2)
[...]
Mar 10 08:59:40 localhost kernel: [4294891.346000] wlan0: Original COR
value: 0x21
Mar 10 08:59:40 localhost kernel: [4294891.369000] ACPI: PCI interrupt
for device 0000:02:02.0 disabled
Mar 10 08:59:40 localhost kernel: [4294891.372000] hostap_pci: Driver
unloaded
Mar 10 08:59:48 localhost kernel: [4294899.295000] hostap_crypt:
unregistered algorithm 'WEP'
Mar 10 08:59:48 localhost kernel: [4294899.305000] hostap_crypt:
unregistered algorithm 'NULL' (deinit)
Mar 10 08:59:56 localhost kernel: [4294907.597000] hostap_crypt:
registered algorithm 'NULL'
Mar 10 08:59:56 localhost kernel: [4294907.613000] hostap_pci: 0.4.1 -
2005-05-22 (Jouni Malinen <jkmaline at cc.hut.fi>)
Mar 10 08:59:56 localhost kernel: [4294907.622000] ACPI: PCI Interrupt
0000:02:02.0[A] -> Link [LNKC] -> GSI 11 (level, low) -> IRQ 11
Mar 10 08:59:56 localhost kernel: [4294907.630000] hostap_pci:
Registered netdevice wifi0
Mar 10 08:59:56 localhost kernel: [4294907.630000] wifi0: Original COR
value: 0x0
Mar 10 08:59:56 localhost kernel: [4294907.829000] prism2_hw_init:
initialized in 195 ms
Mar 10 08:59:56 localhost kernel: [4294907.830000] wifi0: NIC:
id=0x8013 v1.0.0
Mar 10 08:59:56 localhost kernel: [4294907.831000] wifi0: PRI: id=0x15
v1.1.1
Mar 10 08:59:56 localhost kernel: [4294907.831000] wifi0: STA: id=0x1f
v1.7.4
Mar 10 08:59:56 localhost kernel: [4294907.835000] wifi0: Intersil
Prism2.5 PCI: mem=0xec000000, irq=11
Mar 10 08:59:56 localhost kernel: [4294907.843000] wifi0: registered
netdevice wlan0
Mar 10 08:59:56 localhost kernel: [4294907.989000] prism2: wlan0:
operating mode changed 3 -> 2
Mar 10 08:59:56 localhost kernel: [4294908.008000] hostap_crypt:
registered algorithm 'WEP'
Mar 10 08:59:56 localhost kernel: [4294908.052000] wifi0: TXEXC -
status=0x0004 ([Discon]) tx_control=000c
Mar 10 08:59:56 localhost kernel: [4294908.052000] retry_count=0
tx_rate=0 fc=0x4108 (Data::0 ToDS)
Mar 10 08:59:56 localhost kernel: [4294908.052000]
A1=00:00:00:00:00:00 A2=00:20:e0:89:93:de A3=33:33:00:00:00:16
A4=00:00:00:00:00:00
Mar 10 08:59:57 localhost kernel: [4294908.624000] wifi0: LinkStatus=1
(Connected)
Mar 10 08:59:57 localhost kernel: [4294908.624000] wifi0: LinkStatus:
BSSID=00:03:c9:8b:c3:b9
Any ideas?
Andreas Nolda
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