#1814 BLOC Trial-2: xo turns off on resume, no kernel shutdown messages

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#1814: xo turns off on resume, no kernel shutdown messages
---------------------------------+------------------------------------------
 Reporter:  jcardona             |       Owner:  David.Lin
     Type:  defect               |      Status:  new      
 Priority:  blocker              |   Milestone:  Trial-2  
Component:  embedded controller  |     Version:           
 Keywords:                       |    Verified:  0        
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 While testing wireless initiated resume I've observed that sometimes the
 xo turns off.  There are no kernel shutdown messages, so cjb suggests that
 this may be an EC problem.

 Last words before turning off:
 {{{
 [    4.315384] CAFÉ NAND 0000:00:0c.0: LATE suspend
 [    4.320104] Geode LX AES 0000:00:01.2: LATE suspend
 [    4.324998] pci 0000:00:01.0: LATE suspend
 [    4.329414] olpc_do_sleep!
 }}}

 === To reproduce ===

 OFW: q2c17.rom[[BR]]

 wlan fw: 5.110.16[[BR]]

 kernel:
 http://dev.laptop.org/~dilinger/playground/RPMS/i586/kernel-2.6.22-20070626.2.olpc.3a956f941946dc4.i586.rpm[[BR]]


 Run a script on one laptop (xo1) to {{{while true; do suspend.sh; sleep 1;
 done}}}
 Ping xo1 from a second host to so it triggers it to resume.
 I've seen the problem after sometimes 60, up to 300 suspend/resume
 iterations.

-- 
Ticket URL: <http://dev.laptop.org/ticket/1814>
One Laptop Per Child <http://laptop.org/>