[ath9k-devel] EEE PC with AR9280 using N mode with WPA2

[Gabor Juhos <juhosg@openwrt.org>]

Luis R. Rodriguez ?rta:
> On Mon, May 18, 2009 at 1:35 PM, Gabor Juhos <juhosg@openwrt.org> wrote:
>> Rob van Rijen ?rta:
>>> Hi guys,
>>>
>>> I have a EEE PC 1000H with a new MiniPCI-E wireless card: SparkLAN WPEA-110N, (AR9280).
>>> For weeks now I am trying to get it to work with my Linksys WAG160 wireless gateway using WPA2
>>> Wireless N with WEP works, but is no option for security reasons.
>>>
>>> Here some of my settings:
>>> OpenSuse 11.1, KDE 4.2 with KNetworkmanager, with kernel:
>>>   Linux linux-e38b 2.6.29-rc8-48-pae #1 SMP 2009-03-20 14:41:33 +0100 i686 i686 i386 GNU/Linux
>>> with ath9k that came with this kernel, and I tried it with several of the latest drivers
>>> downloaded from wireless.kernel.org, over the last couple of weeks up to 17 april.
>>>
>>> I get the following output from dmesg:
>>> ==============================================================================
>>> wlan0: direct probe to AP 00:21:29:79:c0:84 try 1
>>> wlan0 direct probe responded
>>> wlan0: authenticate with AP 00:21:29:79:c0:84
>>> wlan0: authenticated
>>> wlan0: associate with AP 00:21:29:79:c0:84
>>> wlan0: RX ReassocResp from 00:21:29:79:c0:84 (capab=0x431 status=0 aid=1)
>>> wlan0: associated
>>> wlan0: disassociating by local choice (reason=3)
>>> wlan0: direct probe to AP 00:21:29:79:c0:84 try 1
>>> wlan0 direct probe responded
>>> wlan0: authenticate with AP 00:21:29:79:c0:84
>>> wlan0: authenticated
>>> wlan0: associate with AP 00:21:29:79:c0:84
>>> wlan0: RX AssocResp from 00:21:29:79:c0:84 (capab=0x431 status=0 aid=1)
>>> wlan0: associated
>>> wlan0: disassociating by local choice (reason=3)
>>> ==============================================================================
>>>
>>> This is what I got until I downloaded the driver from 16 may.
>>> With this driver I can actually connect using WPA2, but than the laptop freezes after a few
>>> seconds and I can only use the powerbutton to turn off.
>> I have discovered some weird crashes on various embedded (MIPS, ARM) boards with
>> 2.6.30-rc5+compat-wireless-2009-05-15. I'm not sure that is the same error
>> but seems similar at least. The strange thing, that i saw a '0xdeadbeef' value in
>> the interrupt status register.
>>
>> With the following patch...
>>
>> --- a/drivers/net/wireless/ath/ath9k/hw.c
>> +++ b/drivers/net/wireless/ath/ath9k/hw.c
>> @@ -113,6 +113,13 @@
>>                spin_unlock_irqrestore(&ah->ah_sc->sc_serial_rw, flags);
>>        } else
>>                val = ioread32(ah->ah_sc->mem + reg_offset);
>> +
>> +       if (val == 0xdeadbeef) {
>> +               DPRINTF(ah->ah_sc, ATH_DBG_ANY,
>> +                       "*** Dead beef in register %08x!\n", reg_offset);
>> +               WARN_ON(1);
>> +       }
>> +
>>        return val;
>>  }
>>
>> the output is similar on all boards (with an AR5416 card):
>>
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: ah->misc_mode 0x4
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: ah->misc_mode 0x4
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: ah->misc_mode 0x4
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: ah->misc_mode 0x4
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: ah->misc_mode 0x4
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> NETWORK SLEEP
>> ath9k: NETWORK SLEEP -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: ah->misc_mode 0x4
>> wlan0: authenticate with AP 00:01:23:45:67:89
>> wlan0: authenticated
>> wlan0: associate with AP 00:01:23:45:67:89
>> wlan0: RX AssocResp from 00:01:23:45:67:89 (capab=0x431 status=0 aid=2)
>> wlan0: associated
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> NETWORK SLEEP
>> ath9k: NETWORK SLEEP -> AWAKE
>> ath9k: AWAKE -> NETWORK SLEEP
>> ath9k: *** Dead beef in register 000080ec!
>> ------------[ cut here ]------------
>> WARNING: at /openwrt/ixp4xx/build_dir/linux-ixp4xx_generic/compat-wireless-2009-05-14/drivers/net/wireless/ath/ath9k/hw.c:120 warn_slowpath_null+0x18/0x20()
>> Modules linked in: ath9k nf_nat_tftp nf_conntrack_tftp nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp ipt_MASQUERADE iptable_nat nf_nat xt_NOTRACK iptable_raw xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack ipt_REJECT xt_TCPMSS ipt_LOG<7>ath9k: NETWORK SLEEP -> AWAKE
>> ath9k: AWAKE -> AWAKE
>>  xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables ppp_async ppp_generic slhc ath mac80211 cfg80211 crc_ccitt arc4 aes_generic deflate ecb cbc cryptomgr crypto_hash crypto_blkcipher pcompress aead crypto_algapi [last unloaded: ath9k]
>> Backtrace:
>> [<c0517308>] (dump_backtrace+0x0/0x114) from [<c0517768>] (dump_stack+0x18/0x1c)
>>  r6:00000078 r5:bf1edf68 r4:c0751d05
>> [<c0517750>] (dump_stack+0x0/0x1c) from [<c0524af0>] (warn_slowpath_fmt+0x74/0x90)
>> [<c0524a7c>] (warn_slowpath_fmt+0x0/0x90) from [<c0524b24>] (warn_slowpath_null+0x18/0x20)
>>  r3:c06d1398 r2:c0727b80
>>  r7:00000000 r6:000080ec r5:c1100000 r4:deadbeef
>> [<c0524b0c>] (warn_slowpath_null+0x0/0x20) from [<bf1b7820>] (ath9k_ioread32+0xc0/0x140 [ath9k])
>> [<bf1b7760>] (ath9k_ioread32+0x0/0x140 [ath9k]) from [<bf1cc5fc>] (ath9k_hw_ani_monitor+0x5c/0x454 [ath9k])
>>  r7:00000000 r6:c11015d4 r5:c1100000 r4:000015d0
>> [<bf1cc5a0>] (ath9k_hw_ani_monitor+0x0/0x454 [ath9k]) from [<bf1d15ec>] (ath_ani_calibrate+0x168/0x250 [ath9k])
>>  r8:00000000 r7:00000000 r6:c1100000 r5:c1cba954 r4:fffc0ba8
>> [<bf1d1484>] (ath_ani_calibrate+0x0/0x250 [ath9k]) from [<c052e820>] (run_timer_softirq+0x178/0x1f0)
>> [<c052e6a8>] (run_timer_softirq+0x0/0x1f0) from [<c0529a7c>] (__do_softirq+0x78/0x10c)
>> [<c0529a04>] (__do_softirq+0x0/0x10c) from [<c0529d58>] (irq_exit+0x48/0x50)
>> [<c0529d10>] (irq_exit+0x0/0x50) from [<c0513064>] (_text+0x64/0x74)
>> [<c0513000>] (_text+0x0/0x74) from [<c05139d0>] (__irq_svc+0x30/0xa0)
>> Exception stack(0xc0751f50 to 0xc0751f98)
>> 1f40:                                     c105bb00 60000013 00000000 00000000
>> 1f60: c0514e14 c0750000 c0768168 c0753b48 0001e020 690541f1 0001deb4 c0751fb4
>> 1f80: c0751f98 c0751f98 c0514cd0 c0514cd4 60000013 ffffffff
>>  r6:00000020 r5:0000001f r4:ffffffff
>> [<c0514c94>] (cpu_idle+0x0/0x58) from [<c06ca2a0>] (rest_init+0x58/0x6c)
>>  r6:c0511ec0 r5:c076812c r4:c076f6e8
>> [<c06ca248>] (rest_init+0x0/0x6c) from [<c00089f4>] (start_kernel+0x1fc/0x2c8)
>> [<c00087f8>] (start_kernel+0x0/0x2c8) from [<00008034>] (0x8034)
>>  r6:c05122c4 r5:c0768198 r4:000039fd
>> ---[ end trace 9be94c3a5f325275 ]---
>> ath9k: AWAKE -> AWAKE
>> ath9k: AWAKE -> NETWORK SLEEP
>> ath9k: *** Dead beef in register 000000ac!
>> ------------[ cut here ]------------
>> WARNING: at /openwrt/ixp4xx/build_dir/linux-ixp4xx_generic/compat-wireless-2009-05-14/drivers/net/wireless/ath/ath9k/hw.c:120 warn_slowpath_null+0x18/0x20()
>> Modules linked in: ath9k nf_nat_tftp nf_conntrack_tftp nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp ipt_MASQUERADE iptable_nat nf_nat xt_NOTRACK iptable_raw xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack ipt_REJECT xt_TCPMSS ipt_LOG xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables ppp_async ppp_generic slhc ath mac80211 cfg80211 crc_ccitt arc4 aes_generic deflate ecb cbc cryptomgr crypto_hash crypto_blkcipher pcompress aead crypto_algapi [last unloaded: ath9k]
>> Backtrace:
>> [<c0517308>] (dump_backtrace+0x0/0x114) from [<c0517768>] (dump_stack+0x18/0x1c)
>>  r6:00000078 r5:bf1edf68 r4:c0751d35
>> [<c0517750>] (dump_stack+0x0/0x1c) from [<c0524af0>] (warn_slowpath_fmt+0x74/0x90)
>> [<c0524a7c>] (warn_slowpath_fmt+0x0/0x90) from [<c0524b24>] (warn_slowpath_null+0x18/0x20)
>>  r3:c06d1398 r2:c0727b80
>>  r7:40c00000 r6:000000ac r5:c1100000 r4:deadbeef
>> [<c0524b0c>] (warn_slowpath_null+0x0/0x20) from [<bf1b7820>] (ath9k_ioread32+0xc0/0x140 [ath9k])
>> [<bf1b7760>] (ath9k_ioread32+0x0/0x140 [ath9k]) from [<bf1b8f20>] (ath9k_hw_set_interrupts+0x158/0x340 [ath9k])
>>  r7:40c00000 r6:c1100000 r5:918414b4 r4:f4041171
>> [<bf1b8dc8>] (ath9k_hw_set_interrupts+0x0/0x340 [ath9k]) from [<bf1d1750>] (ath9k_tasklet+0x44/0x108 [ath9k])
>> [<bf1d170c>] (ath9k_tasklet+0x0/0x108 [ath9k]) from [<c0529ca0>] (tasklet_action+0x78/0xe8)
>>  r6:c076cde0 r5:c075b5c4 r4:00000000
>> [<c0529c28>] (tasklet_action+0x0/0xe8) from [<c0529a7c>] (__do_softirq+0x78/0x10c)
>>  r6:00000014 r5:c076ce20 r4:00000001
>> [<c0529a04>] (__do_softirq+0x0/0x10c) from [<c0529d58>] (irq_exit+0x48/0x50)
>> [<c0529d10>] (irq_exit+0x0/0x50) from [<c0513064>] (_text+0x64/0x74)
>> [<c0513000>] (_text+0x0/0x74) from [<c05139d0>] (__irq_svc+0x30/0xa0)
>> Exception stack(0xc0751f50 to 0xc0751f98)
>> 1f40:                                     c105bb00 60000013 00000000 00000000
>> 1f60: c0514e14 c0750000 c0768168 c0753b48 0001e020 690541f1 0001deb4 c0751fb4
>> 1f80: c0751f98 c0751f98 c0514cd0 c0514cd4 60000013 ffffffff
>>  r6:00000020 r5:0000001f r4:ffffffff
>> [<c0514c94>] (cpu_idle+0x0/0x58) from [<c06ca2a0>] (rest_init+0x58/0x6c)
>>  r6:c0511ec0 r5:c076812c r4:c076f6e8
>> [<c06ca248>] (rest_init+0x0/0x6c) from [<c00089f4>] (start_kernel+0x1fc/0x2c8)
>> [<c00087f8>] (start_kernel+0x0/0x2c8) from [<00008034>] (0x8034)
>>  r6:c05122c4 r5:c0768198 r4:000039fd
>> ---[ end trace 9be94c3a5f325276 ]---
>> ath9k: *** Dead beef in register 000000b8!
>> ------------[ cut here ]------------
>> WARNING: at /openwrt/ixp4xx/build_dir/linux-ixp4xx_generic/compat-wireless-2009-05-14/drivers/net/wireless/ath/ath9k/hw.c:120 warn_slowpath_null+0x18/0x20()
>> Modules linked in: ath9k nf_nat_tftp nf_conntrack_tftp nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_conntrack_ftp ipt_MASQUERADE iptable_nat nf_nat xt_NOTRACK iptable_raw xt_state nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack ipt_REJECT xt_TCPMSS ipt_LOG xt_multiport xt_mac xt_limit iptable_mangle iptable_filter ip_tables xt_tcpudp x_tables ppp_async ppp_generic slhc ath mac80211 cfg80211 crc_ccitt arc4 aes_generic deflate ecb cbc cryptomgr crypto_hash crypto_blkcipher pcompress aead crypto_algapi [last unloaded: ath9k]
>> Backtrace:
>> [<c0517308>] (dump_backtrace+0x0/0x114) from [<c0517768>] (dump_stack+0x18/0x1c)
>>  r6:00000078 r5:bf1edf68 r4:c0751d35
>> [<c0517750>] (dump_stack+0x0/0x1c) from [<c0524af0>] (warn_slowpath_fmt+0x74/0x90)
>> [<c0524a7c>] (warn_slowpath_fmt+0x0/0x90) from [<c0524b24>] (warn_slowpath_null+0x18/0x20)
>>  r3:c06d1398 r2:c0727b80
>>  r7:40c00000 r6:000000b8 r5:c1100000 r4:deadbeef
>> [<c0524b0c>] (warn_slowpath_null+0x0/0x20) from [<bf1b7820>] (ath9k_ioread32+0xc0/0x140 [ath9k])
>> [<bf1b7760>] (ath9k_ioread32+0x0/0x140 [ath9k]) from [<bf1b8f94>] (ath9k_hw_set_interrupts+0x1cc/0x340 [ath9k])
>>  r7:40c00000 r6:c1100000 r5:918414b4 r4:f4041171
>> [<bf1b8dc8>] (ath9k_hw_set_interrupts+0x0/0x340 [ath9k]) from [<bf1d1750>] (ath9k_tasklet+0x44/0x108 [ath9k])
>> [<bf1d170c>] (ath9k_tasklet+0x0/0x108 [ath9k]) from [<c0529ca0>] (tasklet_action+0x78/0xe8)
>>  r6:c076cde0 r5:c075b5c4 r4:00000000
>> [<c0529c28>] (tasklet_action+0x0/0xe8) from [<c0529a7c>] (__do_softirq+0x78/0x10c)
>>  r6:00000014 r5:c076ce20 r4:00000001
>> [<c0529a04>] (__do_softirq+0x0/0x10c) from [<c0529d58>] (irq_exit+0x48/0x50)
>> [<c0529d10>] (irq_exit+0x0/0x50) from [<c0513064>] (_text+0x64/0x74)
>> [<c0513000>] (_text+0x0/0x74) from [<c05139d0>] (__irq_svc+0x30/0xa0)
>> Exception stack(0xc0751f50 to 0xc0751f98)
>> 1f40:                                     c105bb00 60000013 00000000 00000000
>> 1f60: c0514e14 c0750000 c0768168 c0753b48 0001e020 690541f1 0001deb4 c0751fb4
>> 1f80: c0751f98 c0751f98 c0514cd0 c0514cd4 60000013 ffffffff
>>  r6:00000020 r5:0000001f r4:ffffffff
>> [<c0514c94>] (cpu_idle+0x0/0x58) from [<c06ca2a0>] (rest_init+0x58/0x6c)
>>  r6:c0511ec0 r5:c076812c r4:c076f6e8
>> [<c06ca248>] (rest_init+0x0/0x6c) from [<c00089f4>] (start_kernel+0x1fc/0x2c8)
>> [<c00087f8>] (start_kernel+0x0/0x2c8) from [<00008034>] (0x8034)
>>  r6:c05122c4 r5:c0768198 r4:000039fd
>> ---[ end trace 9be94c3a5f325277 ]---
>>
>>
>> I assume this means a BUG somewhere in the ath9k, although I did not find it yet.
> 
> Hm, can you try with
> 
> CONFIG_MAC80211_DEFAULT_PS=n

Yes, i did it. I got similar results, although i did not get a crash this time.
I will try it with the latest ath9k PS patches.

Gabor