#3504 HIGH Trial-3: Laptop comes out of suspend on its own

Zarro Boogs per Child bugtracker at laptop.org
Thu Sep 20 14:35:42 EDT 2007


#3504: Laptop comes out of suspend on its own
-----------------------+----------------------------------------------------
  Reporter:  kimquirk  |       Owner:  jcardona
      Type:  defect    |      Status:  new     
  Priority:  high      |   Milestone:  Trial-3 
 Component:  wireless  |     Version:          
Resolution:            |    Keywords:          
  Verified:  0         |  
-----------------------+----------------------------------------------------
Changes (by rsmith):

  * component:  embedded controller => wireless


Comment:

 Replying to [comment:6 jcardona]:
 > The driver currently only enables {{{ config.conditions =
 EHS_WAKE_ON_UNICAST_DATA }}}
 > So only unicast frames addressed to the node should trigger the wake up.
 > Can we be certain that there is no traffic sent to the DUT?

 If there was traffic then its via some automatic method from another mesh
 node.  Its been shown to be happening on few different machines with
 nothing special done to them.

 Unfortunately, I cannot seem to duplicate the problem right now.

 Javier gave me the follwing to do when the problem surfaces again:

 Can you capture traffic on the laptop that's showing that behavior
 before suspending?
 That's how:

 <code>
 killall NetworkManager
 echo 0x1 > /sys/class/net/msh0/device/libertas_rtap
 ifconfig rtap0 up
 tcpdump -i rtap0 -w capture.dump

 You'll need to install tcpdump on the laptops.  Probably yum install
 tcpdump will work.  If not,
 get these rpms:

 ftp://chuck.ucs.indiana.edu/pub/array2/linux/fedora/linux/updates/7/i386/tcpdump-3.9.7-1.fc7.i386.rpm
 ftp://chuck.ucs.indiana.edu/pub/array2/linux/fedora/linux/updates/7/x86_64/libpcap-0.9.7-1.fc7.i386.rpm
 </code>

-- 
Ticket URL: <https://dev.laptop.org/ticket/3504#comment:7>
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