#11814 NORM 1.75-fi: ext2 filesystem flush fails with 0 attempt to corrupt superblock or group descriptor

[Zarro Boogs per Child]

#11814: ext2 filesystem flush fails with 0 attempt to corrupt superblock or group
descriptor
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           Reporter:  Quozl                |       Owner:  Quozl               
               Type:  defect               |      Status:  new                 
           Priority:  normal               |   Milestone:  1.75-firmware       
          Component:  ofw - open firmware  |     Version:  Development firmware
         Resolution:                       |    Keywords:                      
        Next_action:  review               |    Verified:  0                   
Deployment_affected:                       |   Blockedby:                      
           Blocking:                       |  
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Changes (by Quozl):

  * next_action:  diagnose => review


Comment:

 The writing of zero blocks matters.  In ''write-file-block'' these are not
 allocated to filesystem blocks.  The inode block list is left empty by
 design.

 The fix is to interpret physical block zero in the inode block list as
 "there is no physical block for this logical block."

 svn 2953 for review.

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Ticket URL: <http://dev.laptop.org/ticket/11814#comment:3>
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