#12604 NORM Not Tri: mwifiex or XO-4 may stop scanning for APs

Zarro Boogs per Child bugtracker at laptop.org
Thu Mar 7 10:52:18 EST 2013

#12604: mwifiex or XO-4 may stop scanning for APs
 Reporter:  greenfeld  |                 Owner:                                   
     Type:  defect     |                Status:  new                              
 Priority:  normal     |             Milestone:  Not Triaged                      
Component:  kernel     |               Version:  Development build as of this date
 Keywords:             |           Next_action:  diagnose                         
 Verified:  0          |   Deployment_affected:                                   
Blockedby:             |              Blocking:                                   
 1. Connect a XO-4 with 13.1.0 os35 and a different XO model (or different
 laptop) to the first Ad-hoc network in Sugar.  (Potentially any network
 would work.)
  2. Use the XO-4 a bit for collaboration and other purposes that were not
 all networking related.
  3. After a while Sugar's network view may show no APs.  But pinging other
 devices on the network will work (so long as they are awake to resolve
 ARP).  "Running 'iw dev eth0 scan'" as root will report that the device or
 resource is busy (error -16).

 Restarting NetworkManager tends to solve the issue.

 I have only seen this twice across several builds so I don't know what
 causes this.

Ticket URL: <http://dev.laptop.org/ticket/12604>
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