ath5k

ath5k

[Ralph Spitzner]

Following the Procedures described under:
http://linuxwireless.org/en/developers/Documentation/git-guide
or
http://linuxwireless.org/en/users/Download

While trying to insert the ath5k module I get :
--------------------------------------------------------------------

root@meepmeep:~# insmod ath5k.ko
root@meepmeep:~# BUG: unable to handle kernel paging request at virtual 
address fffffdd0
printing eip: d0c74071 *pde = 00981067 *pte = 00000000
Oops: 0000 [#1]
Modules linked in: ath5k snd_seq_dummy snd_seq_oss snd_seq_midi_event 
snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss ipv6 xt_tcpudp 
iptable_filter ip_tables x_tables lp parport_pc parport pcspkr psmouse 
pcmcia battery ac power_supply mac80211 evdev e1000 cfg80211 
yenta_socket rsrc_nonstatic pcmcia_core video output thermal serio_raw 
processor intel_agp button agpgart ata_generic
i2c_i801 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer iTCO_wdt 
shpchp snd iTCO_vendor_support soundcore snd_page_alloc
Pid: 3029, comm: ifconfig Not tainted (2.6.24-rc7 #2)
EIP: 0060:[<d0c74071>] EFLAGS: 00010246 CPU: 0
EIP is at ieee80211_generic_frame_duration+0x21/0x70 [mac80211]
EAX: c61e4160 EBX: c61e4160 ECX: 0000000a EDX: 00000000
ESI: 00000000 EDI: 0000000a EBP: 000003e8 ESP: c621fdd4
  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
Process ifconfig (pid: 3029, ti=c621e000 task=cf95eaa0 task.ti=c621e000)
Stack: d0d8e39b 00000002 0000876c 00000000 cdb7b000 d0d8ac67 0000000a 
da63f324
        00000031 c61e4160 00000000 d0d8fe44 c61e4fac 00000000 00000000 
00000003
        00000002 00000002 00000014 00000000 d0d8fe20 c61e4ea0 00000001 
00000003
Call Trace:
  [<d0d8e39b>] ath5k_hw_rfgain+0x4b/0x80 [ath5k]
  [<d0d8ac67>] ath5k_hw_reset+0xaa7/0xeb0 [ath5k]
  [<d0d83766>] ath5k_init+0x46/0x110 [ath5k]
  [<d0c60bcc>] ieee80211_open+0x19c/0x4c0 [mac80211]
  [<c0141513>] find_lock_page+0x23/0x80
  [<c06ab95c>] dev_open+0x4c/0x80
  [<c06aa639>] dev_change_flags+0x149/0x1c0
  [<c06a9063>] __dev_get_by_name+0x73/0x90
  [<c06f14d1>] devinet_ioctl+0x521/0x6c0
  [<c06a9063>] __dev_get_by_name+0x73/0x90
  [<c069de4f>] sock_ioctl+0xcf/0x230
  [<c069dd80>] sock_ioctl+0x0/0x230
  [<c016aa8f>] do_ioctl+0x1f/0x70
  [<c016ab3c>] vfs_ioctl+0x5c/0x260
  [<c016ada8>] sys_ioctl+0x68/0x80
  [<c0104002>] syscall_call+0x7/0xb
  [<c0720000>] rpcb_decode_getaddr+0x80/0xe0
  =======================
Code: 5d c3 90 8d b4 26 00 00 00 00 83 ec 14 89 5c 24 08 89 c3 89 74 24 
0c 89 d6 89 7c 24 10 89 cf 8b 4c 24 18 83 78 0c 02 74 31 31 d2 <8b> 86 
d0 fd ff ff 89 14 24 89 fa 83 e0 08 89 44 24 04 89 d8 e8
EIP: [<d0c74071>] ieee80211_generic_frame_duration+0x21/0x70 [mac80211] 
SS:ESP 0068:c621fdd4
---[ end trace e300ba2872bb83af ]---


--------------------------------------------------------------------


The machine is a IBM/Lenovo Thinkpad T42 with an Atheros AR5212
MiniPCI card running 2.6.24-rc7 from git.
Any Ideas on this ?
(The only strange thing I've noticed so far, is that it takes
ages to initialize the PCMCIA stuff [yenta] so it maybe thinking
the card is on PCMCIA instead of PCI {!?})


Regards
	-rasp





-- 
Man sollte mehr koennen, als man macht.
  Nicht mehr machen, als man kann
	-B.Brecht

Re: ath5k

[Luis R. Rodriguez]

On Jan 7, 2008 12:46 PM, Ralph Spitzner <rasp@spitzner.org> wrote:
> Following the Procedures described under:
> http://linuxwireless.org/en/developers/Documentation/git-guide
> or
> http://linuxwireless.org/en/users/Download
>
> While trying to insert the ath5k module I get :
> --------------------------------------------------------------------
>
> root@meepmeep:~# insmod ath5k.ko
> root@meepmeep:~# BUG: unable to handle kernel paging request at virtual
> address fffffdd0
> printing eip: d0c74071 *pde = 00981067 *pte = 00000000
> Oops: 0000 [#1]
> Modules linked in: ath5k snd_seq_dummy snd_seq_oss snd_seq_midi_event
> snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss ipv6 xt_tcpudp
> iptable_filter ip_tables x_tables lp parport_pc parport pcspkr psmouse
> pcmcia battery ac power_supply mac80211 evdev e1000 cfg80211
> yenta_socket rsrc_nonstatic pcmcia_core video output thermal serio_raw
> processor intel_agp button agpgart ata_generic
> i2c_i801 snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer iTCO_wdt
> shpchp snd iTCO_vendor_support soundcore snd_page_alloc
> Pid: 3029, comm: ifconfig Not tainted (2.6.24-rc7 #2)
> EIP: 0060:[<d0c74071>] EFLAGS: 00010246 CPU: 0
> EIP is at ieee80211_generic_frame_duration+0x21/0x70 [mac80211]

This is fixed by the patch titled: "[PATCH] ath5k: Fix frame duration
oops" posted on January 4rth, which is pending.

  Luis

ath5k

[Ralph Spitzner]

Sorry about my last post, but I found the pointer to the patch
a little late....

But, :-) while browsing through the source I still cannot locate
where the problem for ath5k master mode lies.
Any pointers (hw.c [?]).

regards
	-rasp


PS: I'm running an acces point and would like to
     switch to ath5k instead of madwifi....

Re: ath5k

[Luis R. Rodriguez]

On Jan 8, 2008 4:47 AM, Ralph Spitzner <rasp@spitzner.org> wrote:
> Sorry about my last post, but I found the pointer to the patch
> a little late....
>
> But, :-) while browsing through the source I still cannot locate
> where the problem for ath5k master mode lies.
> Any pointers (hw.c [?]).

ath5k's base.[ch] files need implementation and integration with
mac80211 for AP mode support. mac80211 itself is still being worked on
for AP mode. On the bright side ath5k's hw.c should already have AP
mode routines, you just really need to make the proper hooks into
mac80211. Johannes has been working on AP mode, I can recommend to
review his patches if you're interested in adding AP mode. Also feel
free to check out the old madwifi-old-openhal which supposedly had AP
mode support with net80211.

  Luis