Hi,
I'm running an Ubiquiti wifi card (SR71 -12) on Ubiquiti's router station
using the latest compat-wireless driver. Unfortunately, the driver crashes as
soon as I try to enable the card (iwconfig wlan0 up).
It seems to be a problem related to the wifi driver but we are not sure what
the PCI error is trying to tell us, hence it is a bit hard to fix. As it is a
mips based device (MIPS 24Kc V7.4) you might be able to help us decipher the
error message.
The kernel backtrace looks like this:
PCI error 1 at PCI addr 0x10009a10
Data bus error, epc == 83c45b5c, ra == 83c45b54
Oops[#1]:
Cpu 0
$ 0 : 00000000 00000000 deadc0de 00000000
$ 4 : b0008048 02000020 00000002 00000223
$ 8 : 00005848 83a4c750 00000000 00000000
$12 : 00000001 00000000 4acf889b 00000000
$16 : 83c0290c 00000223 83bb0000 0000014f
$20 : 83a4c1e0 83bb00e4 00000004 83bb0004
$24 : 00000010 83c0290c
$28 : 83f00000 83f01ce0 00000002 83c45b54
Hi : 0000000a
Lo : 17980000
epc : 83c45b5c ath9k_hw_reset+0xd64/0x1cbc [ath9k_hw]
Not tainted
ra : 83c45b54 ath9k_hw_reset+0xd5c/0x1cbc [ath9k_hw]
Status: 1000f403 KERNEL EXL IE
Cause : 1080001c
PrId : 00019374 (MIPS 24Kc)
Modules linked in: ath9k ath9k_hw pppoe pppox ppp_async ppp_generic slhc ath
mac80211 cfg80211 crc_ccitt arc4 aes_generic deflate ecb cbc button_hotplug
gpio_buttons input_polldev input_core leds_gpio [last unloaded: ath9k_hw]
Process ifconfig (pid: 687, threadinfo=83f00000, task=8389d200, tls=00000000)
Stack : 7fb66ff8 801f13b4 83804c00 00000000 00000000 83f01e20 83c156b0 00000001
00000000 20000000 83bb00e4 83a4c934 83bb0000 83c156b0 83a4c1e0
83a4c9d0
83f01d72 83f01d74 83f01d70 83c03550 00000000 00000015 802d4720 fffffffe
83a4c1e0 ffffff82 83a96ac0 00001043 83a96800 00000000 83bcc50c 83a96800
80094d4c 80094d4c 802d83b0 83a28c60 00000000 00008964 83a96800
83bdfae8
...
Call Trace:
[<83c45b5c>] ath9k_hw_reset+0xd64/0x1cbc [ath9k_hw]
[<83c03550>] ath_descdma_setup+0x2c8/0x19c4 [ath9k]
[<83bcc50c>] ieee80211_if_change_type+0xa74/0xfa4 [mac80211]
Thanks for you help,
Marek
