[Trac #1435] Show page Fault/Can't open boot device/Boot load failed in OFW.

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#1435: Show page Fault/Can't open boot device/Boot load failed in OFW.
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  Reporter:  chiaying.lin  |       Owner:  wmb at firmworks.com
      Type:  defect        |      Status:  assigned         
  Priority:  normal        |   Milestone:  BTest-4          
 Component:  hardware      |     Version:                   
Resolution:                |    Keywords:                   
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Changes (by wmb at firmworks.com):

  * owner:  mlj => wmb at firmworks.com
  * status:  new => assigned

Comment:

 I analyzed the NAND dump image that Gary Su sent me.

 The problem is an OFW version of a problem we had a few weeks ago with
 Linux - the JFFS2 image is getting so "fragmented" (i.e. lots of small
 data nodes) that the memory data structures are overflowing the buffers
 that OFW has allocated for JFFS2 data.

 I can work around this problem by allocating larger data buffers, but I
 need *really* large ones.  With the NAND dump I analyzed, it needed 111 MB
 of buffer space to map that JFFS2 image.

 I'm trying to think of better solutions...

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Ticket URL: <http://dev.laptop.org/ticket/1435#comment:12>
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