#9960 NORM Not Tri: wake-on-WLAN doesn't always work

Zarro Boogs per Child bugtracker at laptop.org
Wed Jan 6 05:02:22 EST 2010


#9960: wake-on-WLAN doesn't always work
--------------------+-------------------------------------------------------
 Reporter:  dsd     |                 Owner:  dsaxena      
     Type:  defect  |                Status:  new          
 Priority:  normal  |             Milestone:  Not Triaged  
Component:  kernel  |               Version:  not specified
 Keywords:          |           Next_action:  never set    
 Verified:  0       |   Deployment_affected:               
Blockedby:          |              Blocking:               
--------------------+-------------------------------------------------------
 XO-1.5 os103 on B3. While pinging a system with autosuspend enabled works
 OK (system suspends, wakes up soon after due to incoming ping),
 interestingly it fails to wake if a ping flood is happening. I guess this
 exposes some kind of timing condition with a packet arriving at the wrong
 time.

 To reproduce:

 On 1 system as root:
  ping -f <ip of XO>

 XO will autosuspend and will not wake up. Resorting to a "slow" ping will
 not wake the system up.

 Wake up the system with a mouse movement and repeat without the -f -- the
 system will suspend and resume nicely.

-- 
Ticket URL: <http://dev.laptop.org/ticket/9960>
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