ath0: device timeout with 802.11n client

[Adrian Chadd]

Hm, I've seen that bss occupancy change spam.

There's another project for someone to figure out. Why is it flipping
so quickly?


On 29 July 2012 04:39, Lev Serebryakov <lev at freebsd.org> wrote:
> Hello, Adrian.
> You wrote 29 июля 2012 г., 15:23:30:
>
> AC> I saw, thanks.
> AC> Please enable reset debugging too - sysctl dev.ath.X.debug=0x20.
>   Done :) I'll post new debug messages as soon as they'll appear.
>
>   BTW,  I've  tried  association  debugging  and  got  a  TONS of such
>   messages when client (Blackberry PlayBook) goes to sleep (but it is
>   still associated):
>
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x11
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x13
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x11
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x13
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x11
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x13
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x11
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x13
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x11
> Jul 29 15:29:05 gateway kernel: wlan0: [00:0c:42:64:69:92] HT bss occupancy change: 1 sta, 1 ht, 0 ht40, non-HT sta present, HT protmode now 0x13
>
>   I've turned assotiation debugging off (and posted folloup to PR).
>
> AC> Jul 27 04:24:09 gateway kernel: ath0: ath_bar_response: called;
> AC> tap=0xc48c32b8, atid=0xc48c4df4, txa_tid=0, atid->tid=0, status=1,
> AC> attempts=50
> AC> Jul 27 04:24:09 gateway kernel: ath0: ath_tx_tid_bar_unsuspend:
> AC> tid=0xc48c4df4, called
> AC> Jul 27 04:24:09 gateway kernel: ath0: ath_bar_response: called;
> AC> tap=0xc48c32b8, atid=0xc48c4df4, txa_tid=0, atid->tid=0, status=1,
> AC> attempts=50
> AC> Jul 27 04:24:09 gateway kernel: ath0: ath_tx_tid_bar_unsuspend:
> AC> tid=0xc48c4df4, called
> AC> Jul 27 04:24:09 gateway kernel: ath0: ath_tx_tid_bar_unsuspend:
> AC> bar_tx=0, bar_wait=0: ?
> AC> That's very odd. I wonder if I broke that specific handling @ attempt=50.
>  As side note: I'm sure, that client was sleeping at this time, as I
>  was sleeping for sure :)
>
> --
> // Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>
>