misc/171235: ath looses connection, system freezes on netif restart

[Marko Cupac]

>Number:         171235
>Category:       misc
>Synopsis:       ath looses connection, system freezes on netif restart
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Sep 01 15:50:06 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Marko Cupac
>Release:        10.0-CURRENT
>Organization:
>Environment:
FreeBSD kaa.mimar.rs 10.0-CURRENT FreeBSD 10.0-CURRENT #2: Thu Aug 30 10:37:41 CEST 2012     root at kaa.mimar.rs:/usr/obj/usr/src/sys/GENERIC  amd64
>Description:
Problem first started on 9.0-RELEASE, i upgraded first to 9-STABLE, then to 10.0-CURRENT but the problem remains.

On a daily basis, my wireless NIC AR9285 looses connection. I use it on two APs, home and work, both of which are configured with WPA2-PSK. Issuing /etc/rc.d/netif restart sometimes restarts computer. Issuing ifconfig wlan0 destroy sometimes hangs computer. I suspect this could be related to vboxnet.ko kernel module, as problems seem to be more frequent when having virtual machine with bridged ethernet on.
>How-To-Repeat:
Wait for the lost connection.
Issue /etc/rc.d/netif restart or
Issue ifconfig wlan0 destroy
>Fix:


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