"wifi0: invalid skb->cb magic" on Sitecom wn-pcc-01

[Rubén Gómez Antolí]

Hi all,

Please CC me, I'm not on the list, and sorry for my very bad english.

Well, I have a Sitecom Wn-pcc-01 pcmcia card based on prism 2 chip:

hostap_cs: 0.2.6 - 2004-12-25 (Jouni Malinen <jkmaline at cc.hut.fi>)
hostap_cs: setting Vcc=33 (constant)
hostap_cs: CS_EVENT_CARD_INSERTION
hostap_cs: setting Vcc=50 (from config)
Checking CFTABLE_ENTRY 0x01 (default 0x01)
IO window settings: cfg->io.nwin=1 dflt.io.nwin=1
io->flags = 0x0046, io.base=0x0000, len=64
hostap_cs: Registered netdevice wifi0
hostap_cs: index 0x01: Vcc 5.0, irq 3, io 0x0100-0x013f
prism2_hw_init: initialized in 108 ms


My system is Debian Sid with a 2.6.10 kernel running in a Dell Inspiron 
8100:

razer at puerto-lobo:~$ uname -a
Linux puerto-lobo 2.6.10+31.i.2005-0 #1 Tue Feb 1 13:42:19 CET 2005 i686 
GNU/Linux

And, hostap version:

razer at puerto-lobo:~$ COLUMNS=100 dpkg -l |grep -i hostap
ii  hostap-modules-2.6. 0.2.6-1+puerto.lobo Host AP driver for Intersil 
Prism2/2.5/3 (kernel 2.6.1
ii  hostap-modules-2.6. 0.2.6-1+puerto.lobo Host AP driver for Intersil 
Prism2/2.5/3 (kernel 2.6.1
ii  hostap-source       0.2.6-1             Host AP driver for Intersil 
Prism2/2.5/3
ii  hostap-utils        0.2.6-1             Utility programs for Host AP 
driver for Intersil Prism

I compiled kernel and modules with fakeroot and make-kpkg:

fakeroot make-kpkg --initrd --revision puerto.lobo.0.1 
--append_to_version +31.i.2005-0 kernel-image modules_image

This card had working with orinoco driver and 2.6.7 kernel, and with 
Knoppix v3.3 and 2.4.27 kernel.

With Knoppix, card yet runs, but in my debian system it anymore works.

When I look for in the network, I found some docs where recommend to 
update firmware of the card. Today, i test and update firmware with 
prism2_srec utility:

prism2_srec -v -f wlan0 s1010701.hex

with this result:

puerto-lobo:~# hostap_diag wlan0
Host AP driver diagnostics information for 'wlan0'

NICID: id=0x8002 v1.0.0 (HWB3163-01,02,03,04 Rev A)
PRIID: id=0x0015 v0.3.0
STAID: id=0x001f v1.7.1 (station firmware)

But, when I reinsert my card and I test, I get same error that I got. No 
network for me in this laptop.

prism2: wlan0: operating mode changed 3 -> 2
wlan0: Preferred AP (SIOCSIWAP) is used only in Managed mode when 
host_roaming is enabled
wlan0: Preferred AP (SIOCSIWAP) is used only in Managed mode when 
host_roaming is enabled
wifi0: invalid skb->cb magic (0x00000000, expected 0xf08a36a2)
wifi0: TXEXC - status=0x0004 ([Discon]) tx_control=000c
    retry_count=0 tx_rate=0 fc=0x4108 (Data::0 ToDS)
    A1=00:00:00:00:00:00 A2=00:60:b3:68:f6:e0 A3=ff:ff:ff:ff:ff:ff 
A4=00:00:00:00:00:00
wifi0: invalid skb->cb magic (0x00000000, expected 0xf08a36a2)
wifi0: TXEXC - status=0x0004 ([Discon]) tx_control=000c
    retry_count=0 tx_rate=0 fc=0x4108 (Data::0 ToDS)


I'm looking for with no results. I test some things how that:

http://lists.shmoo.com/pipermail/hostap/2003-November/004813.html

------------ cut ------------

I was using the wifi interface.  wifi0 is the interface name sent to
/etc/pcmcia/network (along with 'start').
I edited that file thusly:

if [ "$DEVICE" = "wifi0" ]; then
   DEVICE="wlan0"
fi

and everything now works.

-------- end of cut ----------


Any ideas are gracefully accepted.

If you need more date, please, let's me know.

Thanks in advance, and sorry for the big mail.

Salud y Revolución.

Lobo.
-- 
Libertad es poder elegir en cualquier momento. Ahora yo elijo GNU/Linux,
para no atar mis manos con las cadenas del soft propietario.
---------
Desde El Ejido, en Almería, usuario registrado linux #294013
http://www.counter.li.org