[Voyage-linux] Atheros in wds mode - kernel panic

[Keith Cheung]

Hi all,
   
  I configure the Atheros to wds mode on WRAP which runs Voyage-0.2 with madwifi-ng modules r1491. The system will reboot by itself with the following sequence:
   
  - wlanconfig ath0 create wlandev wifi1 wlanmode wds
- ifconfig ath0 up
- iwconfig ath0 key 1212121212

  The console outputs as follows:
   
  unexpected operating mode 2------------[ cut here ]------------
  kernel BUG at <bad filename>:23128!
  invalid operand: 0000 [#1]
  PREEMPT 
  Modules linked in: bridge arc4 ieee80211_crypt_wep wlan_wep wlan_scan_ap uhci_hcd ohci_hcd ehci_hcd usbcore sc1200 scx200 ath_pci ath_rate_sample wlan ath_hal dm_mod scx200_acb lm77 i2c_core wd1100 hostap_pci hostap ieee80211_crypt natsemi crc32
  CPU: 0
  EIP: 0060:[<c88e0b44>] Tainted: P VLI
  EFLAGS: 00010282 (2.6.15-486-voyage) 
  EIP is at ieee80211_node_leave+0x62/0x196 [wlan]
  eax: 0000001e ebx: c71b8000 ecx: c7133da4 edx: c88f29b9
  esi: c71b8000 edi: c7e9e260 ebp: c7fb2260 esp: c7133da0
  ds: 007b es: 007b ss: 0068
  Process iwconfig (pid: 1688, threadinfo=c7132000 task=c1255580)
  Stack: c88f29b9 00000002 c73b0000 c7fb2bdc c71b8000 0000000b c7fb2bdc c7e9e260 
  c88e0374 c71b8000 c71b8000 c88e559e c7fb2260 c7175000 c7e9e260 00000004 
  c88e583c c7fb2bdc c88e559e c7e9e260 c73b0000 00000000 c7133e08 c7e9e47c 
  Call Trace:
  [<c88e0374>] ieee80211_iterate_nodes+0x6c/0xa1 [wlan]
  [<c88e559e>] sta_disassoc+0x0/0x34 [wlan]
  [<c88e583c>] __ieee80211_newstate+0x211/0x646 [wlan]
  [<c88e559e>] sta_disassoc+0x0/0x34 [wlan]
  [<c88e5dfc>] ieee80211_newstate+0x18b/0x195 [wlan]
  [<c8894cc8>] ath_newstate+0x4f8/0x5e0 [ath_pci]
  [<c88e5619>] ieee80211_new_state+0x26/0x38 [wlan]
  [<c88e7373>] ieee80211_ioctl_siwencode+0x221/0x260 [wlan]
  [<c0214afe>] wireless_process_ioctl+0x31c/0x62f
  [<c012a5e1>] filemap_nopage+0xb7/0x2b4
  [<c88e7152>] ieee80211_ioctl_siwencode+0x0/0x260 [wlan]
  [<c020c12b>] dev_ioctl+0x26c/0x29f
  [<c0203171>] sock_ioctl+0x31/0x1ca
  [<c0151038>] do_ioctl+0x28/0x66
  [<c01512f3>] vfs_ioctl+0x17a/0x188
  [<c015132c>] sys_ioctl+0x2b/0x47
  [<c0102679>] syscall_call+0x7/0xb
  Code: 00 00 50 57 e8 94 d5 ff ff 83 c4 14 8b 87 34 02 00 00 83 f8 06 74 18 85 c0 74 14 83 f8 03 74 0f 50 68 b9 29 8f c8 e8 b5 09 83 f7 <0f> 0b 58 5a 66 83 7e 2c 00 0f 84 c8 00 00 00 8b 87 14 06 00 00 
  <0>Kernel panic - not syncing: Fatal exception in interrupt
  <6>wifi0: SW TICK stuck? bits=0x0 EvStat=8001 IntEn=e018
   
  FYI : The problem doesn't happen in master or managed mode. 
   
  Any idea how to fix it.
  Many Thanks.
   
  Keith

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