Wifi messages in dmesg on N900 since PR1.2

Wifi messages in dmesg on N900 since PR1.2

Paul Hartman

2010-05-27 14:35 UTC
Hi,

since PR1.2 I've noticed my dmesg on my N900 is flooded with this
message every few seconds (but not exact intervals) when I'm connected
to my home wi-fi:

[31600.605926] wlan0: roaming signal from driver, sending HIGHSIGNAL
[31601.731414] wlan0: roaming signal from driver, sending LOWSIGNAL
[31607.875396] wlan0: roaming signal from driver, sending HIGHSIGNAL
[31616.579620] wlan0: roaming signal from driver, sending LOWSIGNAL
[31624.567291] wlan0: roaming signal from driver, sending HIGHSIGNAL
[31633.783843] wlan0: roaming signal from driver, sending LOWSIGNAL


I also got this exactly every 900 seconds while I slept last night:
[21999.580230] wlan0: deauthenticated
[22000.235076] wlan0: authenticate with AP 00:16:01:b8:49:c1
[22000.239044] wlan0: authenticated
[22000.239074] wlan0: associate with AP 00:16:01:b8:49:c1
[22000.244384] wlan0: RX AssocResp from 00:16:01:b8:49:c1 (capab=0x411
status=0 aid=2)
[22000.244445] wlan0: associated

My internet settings are:

Connect automatically: Any connection
Search interval: 10 minutes
Switch to wi-fi when available: yes

Wi-Fi transmission power: 100mW
WPA2-only mode: yes
Power Saving: On (Maximum)

Are these messages normal? I'm concerned that battery life could be
affected if it's doing some kind of constant wifi activity...

Thanks,
Paul
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Re: Wifi messages in dmesg on N900 since PR1.2

Alejandro Lopez
Karma: 38
2010-05-27 15:03 UTC
Paul Hartman wrote:
> Hi,
>
> since PR1.2 I've noticed my dmesg on my N900 is flooded with this
> message every few seconds (but not exact intervals) when I'm connected
> to my home wi-fi:
>
> [31600.605926] wlan0: roaming signal from driver, sending HIGHSIGNAL
> [31601.731414] wlan0: roaming signal from driver, sending LOWSIGNAL
> [31607.875396] wlan0: roaming signal from driver, sending HIGHSIGNAL
> [31616.579620] wlan0: roaming signal from driver, sending LOWSIGNAL
> [31624.567291] wlan0: roaming signal from driver, sending HIGHSIGNAL
> [31633.783843] wlan0: roaming signal from driver, sending LOWSIGNAL
>
>
> I also got this exactly every 900 seconds while I slept last night:
> [21999.580230] wlan0: deauthenticated
> [22000.235076] wlan0: authenticate with AP 00:16:01:b8:49:c1
> [22000.239044] wlan0: authenticated
> [22000.239074] wlan0: associate with AP 00:16:01:b8:49:c1
> [22000.244384] wlan0: RX AssocResp from 00:16:01:b8:49:c1 (capab=0x411
> status=0 aid=2)
> [22000.244445] wlan0: associated
>
> My internet settings are:
>
> Connect automatically: Any connection
> Search interval: 10 minutes
> Switch to wi-fi when available: yes
>
> Wi-Fi transmission power: 100mW
> WPA2-only mode: yes
> Power Saving: On (Maximum)
>
> Are these messages normal? I'm concerned that battery life could be
> affected if it's doing some kind of constant wifi activity...
>
> Thanks,
> Paul

I noticed that my battery is being drawn since I installed PR1.2 yesterday. So when I saw your mail I checked my device and found the same messages, except for the deauthentication/authentication every 900 seconds.

What is more important, I also have some message like this:

[56910.552368] w11251: ERROR Power save entry failed, giving up
[56994.833557] w11251: ERROR Power save entry failed, giving up
[57034.021118] w11251: ERROR Power save entry failed, giving up

Which could explain the battery being drawn, but I have no clue about what it is.

My wifi configuration is the same as yours except that at this precise comment I'm using WEP. At home I use WPA and I'll check whether I have the deauthentication/authentication loop.


Alejandro.
  •  Reply