wlan0 link state down

kAldown

kAldown

Hi there.
Could anyone explain why
Code: 
% dmesg | grep wlan0
wlan0: Ethernet address: 00:13:ce:5f:34:cc
wlan0: link state changed to DOWN
wlan0: link state changed to UP
wlan0: link state changed to DOWN
wlan0: link state changed to UP
wlan0: link state changed to DOWN
wlan0: link state changed to UP
wlan0: link state changed to DOWN
wlan0: link state changed to UP
Code: 
kernel: iwi0: need multicast update callback
Code: 
 % less /var/log/messages | grep wlan0
Apr 12 16:02:25 d610 wpa_supplicant[6976]: wlan0: CTRL-EVENT-DISCONNECTED bssid=10:fe:ed:72:9c:3c reason=0
Apr 12 16:02:25 d610 kernel: wlan0: link state changed to DOWN
Apr 12 16:02:27 d610 wpa_supplicant[6976]: wlan0: Trying to associate with 10:fe:ed:72:9c:3c (SSID='Teslas' freq=2412 MHz)
Apr 12 16:02:27 d610 wpa_supplicant[6976]: wlan0: Associated with 10:fe:ed:72:9c:3c
Apr 12 16:02:27 d610 kernel: wlan0: link state changed to UP
Apr 12 16:02:27 d610 devd: Executing '/etc/rc.d/dhclient quietstart wlan0'
Apr 12 16:02:27 d610 wpa_supplicant[6976]: wlan0: WPA: Key negotiation completed with 10:fe:ed:72:9c:3c [PTK=CCMP GTK=TKIP]
Apr 12 16:02:27 d610 wpa_supplicant[6976]: wlan0: CTRL-EVENT-CONNECTED - Connection to 10:fe:ed:72:9c:3c completed [id=0 id_str=]
Apr 12 16:02:27 d610 dhclient: New IP Address (wlan0): 192.168.0.102
Apr 12 16:02:27 d610 dhclient: New Subnet Mask (wlan0): 255.255.255.0
Apr 12 16:02:27 d610 dhclient: New Broadcast Address (wlan0): 192.168.0.255
Apr 12 16:02:27 d610 dhclient: New Routers (wlan0): 192.168.0.1
And this repeat randomly, every 30 minutes.
Which case a lot of problem, because if I dare to % sudo service netif restart while windows guest running under vbox with bridge network mode - there will be a kernel panic. So I should shutdown guest OS, service netif restart, boot guest OS, and wait for another wlan0: link state down.
Thanks.
 
Bump for:
Code: 
$ kaldown@d610:~ % dmesg | tail -n 20
wlan0: link state changed to DOWN
wlan0: link state changed to UP
iwi0: need multicast update callback
iwi0: need multicast update callback
wlan0: link state changed to DOWN
wlan0: link state changed to UP
iwi0: need multicast update callback
iwi0: need multicast update callback
wlan0: link state changed to DOWN
wlan0: link state changed to UP
iwi0: need multicast update callback
iwi0: need multicast update callback
wlan0: link state changed to DOWN
wlan0: link state changed to UP
iwi0: need multicast update callback
iwi0: need multicast update callback
wlan0: link state changed to DOWN
wlan0: link state changed to UP
iwi0: need multicast update callback
iwi0: need multicast update callback
And it continue for about 100 rows after
:(
 
Unsure that it is a fix here, but when I use wifi I use an intemittent ping on the primary login, and then work from the secondary login (next tty). The former to keep the connection up. (Or, do them both in an xterm, which is launched immediately after the connection is up, before it drops).
 
Could it be at least solution to not change wlan0 link state, even while iwi0 still warning about "need multicast update callback"?
Thanks.
 
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