Can't get hostapd to start, channels are all passive-scanning?

Can't get hostapd to start, channels are all passive-scanning?

[Ben Greear]

Any idea what would cause all of my 5Ghz channels to be passive
scanning (which keeps hostapd from being able to use them, evidently)

		Frequencies:
			* 5180 MHz [36] (17.0 dBm) (passive scanning, no IBSS)
			* 5200 MHz [40] (17.0 dBm) (passive scanning, no IBSS)
			* 5220 MHz [44] (17.0 dBm) (passive scanning, no IBSS)
			* 5240 MHz [48] (17.0 dBm) (passive scanning, no IBSS)
			* 5260 MHz [52] (18.0 dBm) (passive scanning, no IBSS, radar detection)
			* 5280 MHz [56] (18.0 dBm) (passive scanning, no IBSS, radar detection)
			* 5300 MHz [60] (18.0 dBm) (passive scanning, no IBSS, radar detection)
			* 5320 MHz [64] (18.0 dBm) (passive scanning, no IBSS, radar detection)

Another ath9k nearby, with same 'iw reg get' info and a slightly
different ath9k NIC shows this:


		Frequencies:
			* 5180 MHz [36] (17.0 dBm)
			* 5200 MHz [40] (17.0 dBm)
			* 5220 MHz [44] (17.0 dBm)
			* 5240 MHz [48] (17.0 dBm)
			* 5260 MHz [52] (20.0 dBm) (passive scanning, no IBSS, radar detection)
			* 5280 MHz [56] (20.0 dBm) (passive scanning, no IBSS, radar detection)
			* 5300 MHz [60] (20.0 dBm) (passive scanning, no IBSS, radar detection)
			* 5320 MHz [64] (20.0 dBm) (passive scanning, no IBSS, radar detection)

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

Re: Can't get hostapd to start, channels are all passive-scanning?

[Ben Greear]

On 05/13/2011 04:36 PM, Ben Greear wrote:
> Any idea what would cause all of my 5Ghz channels to be passive
> scanning (which keeps hostapd from being able to use them, evidently)
>
> Frequencies:
> * 5180 MHz [36] (17.0 dBm) (passive scanning, no IBSS)
> * 5200 MHz [40] (17.0 dBm) (passive scanning, no IBSS)
> * 5220 MHz [44] (17.0 dBm) (passive scanning, no IBSS)
> * 5240 MHz [48] (17.0 dBm) (passive scanning, no IBSS)
> * 5260 MHz [52] (18.0 dBm) (passive scanning, no IBSS, radar detection)
> * 5280 MHz [56] (18.0 dBm) (passive scanning, no IBSS, radar detection)
> * 5300 MHz [60] (18.0 dBm) (passive scanning, no IBSS, radar detection)
> * 5320 MHz [64] (18.0 dBm) (passive scanning, no IBSS, radar detection)

Bleh...reboot and it comes up looking more normal (first 4 are usable, at least).

Will post again if I can reproduce it.

Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

Re: Can't get hostapd to start, channels are all passive-scanning?

[Adrian Chadd]

What's the regulatory domain of the NIC?

Is it some strange race condition with CRDA?


Adrian

On 14 May 2011 08:06, Ben Greear <greearb@candelatech.com> wrote:
> On 05/13/2011 04:36 PM, Ben Greear wrote:
>>
>> Any idea what would cause all of my 5Ghz channels to be passive
>> scanning (which keeps hostapd from being able to use them, evidently)
>>
>> Frequencies:
>> * 5180 MHz [36] (17.0 dBm) (passive scanning, no IBSS)
>> * 5200 MHz [40] (17.0 dBm) (passive scanning, no IBSS)
>> * 5220 MHz [44] (17.0 dBm) (passive scanning, no IBSS)
>> * 5240 MHz [48] (17.0 dBm) (passive scanning, no IBSS)
>> * 5260 MHz [52] (18.0 dBm) (passive scanning, no IBSS, radar detection)
>> * 5280 MHz [56] (18.0 dBm) (passive scanning, no IBSS, radar detection)
>> * 5300 MHz [60] (18.0 dBm) (passive scanning, no IBSS, radar detection)
>> * 5320 MHz [64] (18.0 dBm) (passive scanning, no IBSS, radar detection)
>
> Bleh...reboot and it comes up looking more normal (first 4 are usable, at
> least).
>
> Will post again if I can reproduce it.
>
> Ben
>
> --
> Ben Greear <greearb@candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
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>

Re: Can't get hostapd to start, channels are all passive-scanning?

[Ben Greear]

On 05/13/2011 08:41 PM, Adrian Chadd wrote:
> What's the regulatory domain of the NIC?

 From the boot where it worked:

ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a

Seems this isn't saved in /var/log/messages, so no idea what it was on the
previous boot where things were more weird than normal.

> Is it some strange race condition with CRDA?

Hard to say.  I did check the 'iw reg get' and it looked
sane..but maybe that wouldn't show the problem...

Thanks,
Ben

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com