#1905 BLOC Trial-2: Field Return: flash corruption - OpenFirmware complaining of 'unknown node type 2006'.

[Zarro Boogs per Child]

#1905: Field Return: flash corruption - OpenFirmware complaining of 'unknown node
type 2006'.
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  Reporter:  dwmw2     |       Owner:  wad     
      Type:  defect    |      Status:  assigned
  Priority:  blocker   |   Milestone:  Trial-2 
 Component:  hardware  |     Version:          
Resolution:            |    Keywords:          
  Verified:  0         |  
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Comment (by Bryan.Ma):

 The B4 unit(in fact,only the MainBoard) was shipped from Shanghai
 factory,[[BR]]
 so I only have the serial number on MB: "QTFICA72300115".[[BR]]

 Another observation we found:[[BR]]
 1)Switch NAND flash from problem unit(unitA) to another healthy
 unit(UnitB), the symptom still show on unitB.[[BR]]
 2)Reflash NAND with *the same* build 513, the symptom disappear at
 first,then gradually increasing until unitB fail to boot under OFW. [[BR]]
 The methods we use to reflash are:[[BR]]
     -select /nandflash[[BR]]
     -scrub[[BR]]
     -copy-nand nand513.img[[BR]]

   If the cause for the complaints come from DMA transferring(or RAM
 corruption?),
  we're confused why they're still there after swiching NAND to another
 well unit ?

-- 
Ticket URL: <https://dev.laptop.org/ticket/1905#comment:30>
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