Re: [gentoo-user] Problems with madwifi

[Robert Crawford]

On Tuesday 16 August 2005 11:52 pm, Pupeno wrote:
> Hello,
> I have an IBM wifi card that has an Atheros chipset that was working
> perfectly with the madwifi driver untill the update that happened recently,
> now it is a big mess.
> When I plug it in or at boot if it is plugged in when coldplugging pnp
> devices I got somethig like:
>
> PREEMPT
> Modules linked in: md5 ipv6 pcmcia tsdev ohci_hcd parport_pc parport floppy
> psmouse rtc pcspkr yenta_socket rsrc_nonstatic pcmcia_core tg3 snd_intel8x0
> snd_ac97_codec snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801
> i2c_core piix shpchp pci_hotplug ehci_hcd uhci_hcd intelfb intel_agp
> agpgart evdev usbcore aes_i586 dm_crypt ath_pci ath_rate_sample
> ath_rate_onoe ath_rate_amrr wlan_xauth wlan_wep wlan_tkip wlan_ccmp
> wlan_acl wlan ath_hal ibm_acpi thermal processor fan button battery ac loop
> dm_mod ide_cd cdrom nls_utf8 nls_base
> CPU:    0
> EIP:    0060:[<f01436a0>]    Tainted: P      VLI
> EFLAGS: 00010246   (2.6.12-suspend2-r4)
> EIP is at ath_rate_ctl_reset+0xd0/0x470 [ath_rate_sample]
> eax: 00000000   ebx: ee300800   ecx: ec62c000   edx: 00000000
> esi: 70007972   edi: 00000000   ebp: ee300800   esp: ed8e5cc8
> ds: 007b   es: 007b   ss: 0068
> Process pccardd (pid: 6197, threadinfo=ed8e4000 task=ef3db020)
> Stack: c034e946 ed8e5d10 00000046 ef22ca40 c042ff10 000f4bd1 ef22ca40
> ef22ca40 4145c780 000f4bd1 000d9038 4145c780 000f4bd1 ef22ca40 ee3009fc
> ec62c620 ec62c000 ee300800 f01a1490 ee300ff8 ec62c000 f01a242b ec62c000
> ee300800 Call Trace:
>  [<c034e946>] schedule+0x336/0x620
>  [<f01a1490>] ath_key_update_begin+0x0/0x70 [ath_pci]
>  [<f01a242b>] ath_node_alloc+0x9b/0xc0 [ath_pci]
>  [<f01a1490>] ath_key_update_begin+0x0/0x70 [ath_pci]
>  [<f0189f93>] ieee80211_node_lateattach+0x13/0xe0 [wlan]
>  [<f01a1490>] ath_key_update_begin+0x0/0x70 [ath_pci]
>  [<f0183a9f>] ieee80211_media_init+0x1f/0x4a0 [wlan]
>  [<f01a198c>] ath_setslottime+0x2c/0x50 [ath_pci]
>  [<f018453f>] ieee80211_watchdog+0x5f/0x90 [wlan]
>  [<f0183699>] ieee80211_ifattach+0x159/0x2e0 [wlan]
>  [<f01a1500>] ath_key_update_end+0x0/0x70 [ath_pci]
>  [<f01a1490>] ath_key_update_begin+0x0/0x70 [ath_pci]
>  [<f0189f93>] ieee80211_node_lateattach+0x13/0xe0 [wlan]
>  [<f01a1490>] ath_key_update_begin+0x0/0x70 [ath_pci]
>  [<f0183a9f>] ieee80211_media_init+0x1f/0x4a0 [wlan]
>  [<f01a198c>] ath_setslottime+0x2c/0x50 [ath_pci]
>  [<f018453f>] ieee80211_watchdog+0x5f/0x90 [wlan]
>  [<f0183699>] ieee80211_ifattach+0x159/0x2e0 [wlan]
>  [<f01a1500>] ath_key_update_end+0x0/0x70 [ath_pci]
>  [<f01a1490>] ath_key_update_begin+0x0/0x70 [ath_pci]
>  [<f019f889>] ath_attach+0x889/0xb00 [ath_pci]
>  [<f01a0b40>] ath_media_change+0x0/0x40 [ath_pci]
>  [<f0184360>] ieee80211_media_status+0x0/0x180 [wlan]
>  [<f01a6656>] ath_pci_probe+0x226/0x3e0 [ath_pci]
>  [<c025b162>] pci_device_probe_static+0x52/0x70
>  [<c025b1bc>] __pci_device_probe+0x3c/0x50
>  [<c025b1fc>] pci_device_probe+0x2c/0x50
>
> if I try to connect I get:
>
>  # /etc/init.d/net.ath0 start
>   * Starting ath0
>   *   Bringing up ath0
>   *     Configuration not set for ath0 - assuming dhcp
>   *     dhcp
>   *       ath0 does not exist
>
> in some cases I just get: failed to connect.
> Checking a bit more, ath0 doesn't exist, and I can't even see it on lspci.
>
> When I unplug it, I get a kernel panic.
>
> I am loading the modules:
> ath_hal
> wlan
> wlan_acl
> wlan_ccmp
> wlan_tkip
> wlan_wep
> wlan_xauth
> ath_rate_amrr
> ath_rate_onoe
> ath_pci
> at boot thru /etc/modules.autoload.d/kernel-2.6.
>
> Any ideas what is going on ? Am I doing something wrong ?
>
> Thank you.

Which updates are you talking about- did you change kernels? Maybe you need to 
reemerge all the wifi and dhcpcd stuff.

I have a D-link Atheros based card, and here's what I do:

1. compile into the kernel all support items for wifi (not modules)

2. emerge all madwifi stuff (tools, driver), and dhcpcd

3. As root, type

iwconfig ath0

This brings up the config list, but no essid, and the address is all zeros.

then I type

 dhcpcd ath0

and it connects fine.

If I redo the iwconfig ath0 command, it now lists the essid name of my 
wireless router (linksys), and the numerical isp address dhcpcd found.

Hope this helps.

Robert Crawford




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