Re: ath problems/questions
Aragon Gouveia wrote:[color=blue]
> First, forgive me if I'm posting to the incorrect list....
> I have recently started playing with ath under FreeBSD 7.0-BETA2. I'm using
> a Ubiquiti SRX ExpressCard.
> The main problem I'm having is that during scans, channels will suddenly
> fail to reset and the only way to recover is to reboot or kldunload if_ath,
> unplug, replug, and kldload if_ath. Here's a snippet of the error messages:
> Feb 21 22:43:31 fuzz kernel: ath0: ath_chan_set: unable to reset channel 40 (5200 Mhz, flags 0x140 hal flags 0x140)
> Feb 21 22:43:32 fuzz kernel: ath0: ath_chan_set: unable to reset channel 44 (5220 Mhz, flags 0x140 hal flags 0x140)
> Feb 21 22:43:33 fuzz kernel: ath0: ath_chan_set: unable to reset channel 48 (5240 Mhz, flags 0x140 hal flags 0x140)
> Feb 21 22:43:33 fuzz kernel: ath0: ath_chan_set: unable to reset channel 2 (2417 Mhz, flags 0x480 hal flags 0xc0)
> Feb 21 22:43:34 fuzz kernel: ath0: ath_chan_set: unable to reset channel 3 (2422 Mhz, flags 0x480 hal flags 0xc0)
> Feb 21 22:43:35 fuzz kernel: ath0: ath_chan_set: unable to reset channel 4 (2427 Mhz, flags 0x480 hal flags 0xc0)[/color]
Blech, I keep forgetting to add the hal status code to this printf. We
need to identify why the reset failed but it's likely a
hardware/expresscard issue and not in the driver. Unfortunately I don't
have an SRX card (just about every other Ubiquiti cards--thank you
Robert--but not this one).
> If I set the interface down and back up without any reloading of modules or
> replugging of the card, I get the following error:
> Feb 21 22:45:45 fuzz kernel: ath0: unable to reset hardware; hal status 3227908992[/color]
This is odd, the status code should be in the range 1-15.
> I am not able to reproduce this reliably, however, setting chanlist to 1-48
> (or less) seems to stop it from happening. Scanning above channel 48 and the
> errors start again (sometimes). Any ideas?[/color]
Not really. I don't see a mac+phy for the card or any indication of the
hal version you are using and I'm not familiar with the part in this card.
> The other problem I'm having is that scanning behaves differently depending
> on when wlan_scan_sta.ko is loaded. If I load it before setting the
> interface up, when I set the interface up it begins scanning continuously
> by itself. While it's doing this issuing an "ifconfig ath0 scan" doesn't
> do anything. However, doing a list scan seems to work and continously gets
> If I load wlan_scan_sta.ko after setting the interface up, no auto scanning
> occurs. If I run "ifconfig ath0 scan" it scans, returns the results, and
> stops scanning.
> I have tried with and without bgscan enabled - no difference. Is there
> any way of controlling this behaviour?[/color]
Assuming all this is using the SRX card I'd forget about trying to
understand/resolve 802.11 issues until we understand why you're seeing
the above problems.
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