kern/124341: promiscuous mode for wireless device ral0 looses signal after ~30 mins (airodump-ng loses all stations after ~30 minutes)

[Yuri]

>Number:         124341
>Category:       kern
>Synopsis:       promiscuous mode for wireless device ral0 looses signal after ~30 mins (airodump-ng loses all stations after ~30 minutes)
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jun 06 06:00:10 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Yuri
>Release:        7.0-STABLE
>Organization:
n/a
>Environment:
>Description:
When I try using net-mgmt/airodump-ng (/usr/local/sbin/airodump-ng -w xx ral0) it works for ~30 mins and then loses all stations one by one.

Restarting this command gets it to the state with no stations right away.
But after I do 'ifconfig ral0 down ; ifconfig ral0 up' command works again. Until it loses stations in ~30 minutes again and everything repeats.

It seems that ral0 gets into some internal state that prevents airodump-ng from picking up packets. And down/up clears it.

But the output of 'ifconfig ral0' doesn't change after down/up:
ral0: flags=2a9c3<UP,BROADCAST,RUNNING,NOARP,PROMISC,SIMPLEX,LINK1,MULTICAST,PPROMISC> metric 0 mtu 1500
       ether 00:18:f8:2e:40:25
       inet 192.168.168.133 netmask 0xffffff00 broadcast 192.168.168.255
       media: IEEE 802.11 Wireless Ethernet autoselect <monitor> (autoselect <monitor>)
       status: associated
       ssid "" channel 5 (2432 Mhz 11g) bssid 00:18:f8:2e:40:25
       authmode OPEN privacy OFF txpower 50 scanvalid 60 bgscan
       bgscanintvl 300 bgscanidle 250 roam:rssi11g 7 roam:rate11g 5
       protmode CTS

My card is recognized as: ral0: <Ralink Technology RT2561S> mem 0xcffe8000-0xcffeffff irq 17 at device 10.0 on pci0
And I use 7.0-STABLE.

This seems like a bug in the driver. But I am asking here hoping someone will have an answer off the top of their head.


>How-To-Repeat:

>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: