Re: nice error(or is it?) message

Bogdan Petrisor wrote:
> just found those messages this morning while looking at the logs.
> 
> Jul 24 18:19:58 micutzu kernel: at76c503.c: wlan0: lost beacon bssid 00:0c:41:a0:66:66
> Jul 25 06:57:53 micutzu kernel: at76c503.c: wlan0: lost beacon bssid 00:0f:66:a4:8a:b7
> Jul 26 20:33:05 micutzu kernel: at76c503.c: wlan0: lost beacon bssid 00:0c:41:a0:66:66
> Jul 27 00:32:05 micutzu kernel: at76c503.c: wlan0: lost beacon bssid 00:0f:66:a4:8a:b7
> Jul 29 06:05:58 micutzu kernel: at76c503.c: wlan0: it's a frame from mars: ffff 
> 
> anybady got a quick explanation for the last one? :D:D

The 802.11 frames received with your wireless card can have different
frame types. The driver checks for the different types in a switch in
at76c503.c:

switch (frame_ctl & IEEE802_11_FCTL_FTYPE) {
        case IEEE802_11_FTYPE_DATA:
	  received data
        case IEEE802_11_FTYPE_MGMT:
	  received managment frame
        case IEEE802_11_FTYPE_CTL:
	  received control frame

all other cases:

info("%s: it's a frame from mars: %2x", dev->netdev->name,frame_ctl);

So something went wrong while receiving the frame I would guess :-)