#12525 NORM 4-firmw: XO-4 EC communication problem

[Zarro Boogs per Child]

#12525: XO-4 EC communication problem
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           Reporter:  wad                  |       Owner:  rsmith                            
               Type:  defect               |      Status:  new                               
           Priority:  normal               |   Milestone:  4-firmware                        
          Component:  embedded controller  |     Version:  Development source as of this date
         Resolution:                       |    Keywords:  XO-4, EC                          
        Next_action:  diagnose             |    Verified:  0                                 
Deployment_affected:                       |   Blockedby:                                    
           Blocking:                       |  
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Comment(by pgf):

 shep sent mail with a similar report:

 {{{
 I've been trying wake-on-lan on this machine, and then just a few
 minutes ago I was doing a bunch of

         sudo ping -c 100 -i 0.01 10.0.0.152

 at this laptop, and now it is printing this stuff out on the serial
 console:



 [ 5182.122694] olpc-ec-1.75: EC cmd error: timeout in STATE 2
 [ 5182.122717] power_supply olpc-battery: driver failed to report
 `capacity' pr
 operty: 4294967186
 [ 5182.137841] olpc-ec-1.75: transmit FIFO not empty, resetting
 [ 5186.132785] olpc-ec-1.75: EC cmd error: timeout in STATE 2
 [ 5186.138247] power_supply olpc-battery: driver failed to report `status'
 prop
 erty: 4294967186
 [ 5186.146842] olpc-ec-1.75: transmit FIFO not empty, resetting
 [ 5190.142686] olpc-ec-1.75: EC cmd error: timeout in STATE 2
 [ 5190.148204] power_supply olpc-battery: driver failed to report `status'
 prop
 erty: 4294967186
 [ 5190.156609] olpc-ec-1.75: transmit FIFO not empty, resetting
 [ 5194.142692] olpc-ec-1.75: EC cmd error: timeout in STATE 2
 [ 5194.142704] power_supply olpc-battery: driver failed to report `status'
 prop
 erty: 4294967186
 [ 5194.159969] olpc-ec-1.75: transmit FIFO not empty, resetting
 [ 5198.152689] olpc-ec-1.75: EC cmd error: timeout in STATE 2
 [ 5198.152701] power_supply olpc-battery: driver failed to report `status'
 prop
 erty: 4294967186
 .....
 On the EC console (I think from before this started happening, and a
 ways into it):

 286540422:suspend_hint --> 0
 event mask was 0xffff, is now 0xffff
 event mask was 0xffff, is now 0xffff
 286638657:suspend_hint --> 1
 suspend sync: 00000007
 286668534:soc_sleep: fell
 286678683:suspend_hint --> 0
 event mask was 0xffff, is now 0xffff
 288339035:EEPROM write All
 event mask was 0xffff, is now 0xffff
 288493058:suspend_hint --> 1
 suspend sync: 00000008
 288496564:soc_sleep: fell
 288496797:suspend_hint --> 0
 event mask was 0xffff, is now 0xffff
 event mask was 0xffff, is now 0xffff
 291189311:suspend_hint --> 1
 suspend sync: 00000009
 291192509:soc_sleep: fell
 291192722:suspend_hint --> 0
 event mask was 0xffff, is now 0xffff
 291368016:SDI switchwait noack
 291372001:SDI switchwait noack
 291375984:SDI switchwait noack
 291379961:SDI switchwait noack
 291383948:SDI switchwait noack
 291387932:SDI switchwait noack
 ...
 }}}

-- 
Ticket URL: <http://dev.laptop.org/ticket/12525#comment:2>
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