#9744 HIGH Not Tri: XO-1.5 WLAN errors after multiple suspend/resumes

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#9744: XO-1.5 WLAN errors after multiple suspend/resumes
--------------------------------+-------------------------------------------
           Reporter:  wad       |       Owner:  mbletsas                         
               Type:  defect    |      Status:  new                              
           Priority:  high      |   Milestone:  Not Triaged                      
          Component:  wireless  |     Version:  Development build as of this date
         Resolution:            |    Keywords:  XO-1.5 WLAN                      
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Description changed by cjb:

Old description:

> On an XO-1.5 B3 prototype (#17), running Q3A16 and os45, I had a reboot
> instead of a resume.
>
> The laptop was modified with the XO1.5 WLAN SR ECO:
>
>     http://wiki.laptop.org/go/XO1.5_WLAN_SR_ECO
>
> The laptop was set to autowack by adding:
>
>     50 autowack-delay
>
>     autowack-on
>
> to the olpc.fth file.
>
> It was associated with an access point.
>
> From the terminal activity, I enabled EC wakeup events using:
>
>     sudo sh
>
>     echo EC > /proc/acpi/wakeup
>
> I then started a script (dosr) running:
>
>     for i in seq 1 100000; do echo $i; sleep 1; echo mem >
> /sys/power/state; done;
>
> After twenty cycles, I stopped it and checked the interface using
> iwconfig and ping the gateway just fine.
>
> I restarted it, and after ten or so cycles I noticed that the WLAN LED
> was flashing very quickly.  I stopped, and when I typed iwconfig it took
> many second to respond.  This happened repeatedly.
>
> This is easy to reproduce.

New description:

 On an XO-1.5 B3 prototype (#17), running Q3A16 and os45, I had WLAN errors
 after multiple suspend/resumes.

 The laptop was modified with the XO1.5 WLAN SR ECO:

     http://wiki.laptop.org/go/XO1.5_WLAN_SR_ECO

 The laptop was set to autowack by adding:

     50 autowack-delay

     autowack-on

 to the olpc.fth file.

 It was associated with an access point.

 From the terminal activity, I enabled EC wakeup events using:

     sudo sh

     echo EC > /proc/acpi/wakeup

 I then started a script (dosr) running:

     for i in seq 1 100000; do echo $i; sleep 1; echo mem >
 /sys/power/state; done;

 After twenty cycles, I stopped it and checked the interface using iwconfig
 and ping the gateway just fine.

 I restarted it, and after ten or so cycles I noticed that the WLAN LED was
 flashing very quickly.  I stopped, and when I typed iwconfig it took many
 second to respond.  This happened repeatedly.

 This is easy to reproduce.

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Ticket URL: <http://dev.laptop.org/ticket/9744#comment:2>
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