#3247 BLOC MP Star: NAND rot

Zarro Boogs per Child bugtracker at laptop.org
Mon Sep 10 02:37:10 EDT 2007


#3247: NAND rot
--------------------------------+-------------------------------------------
  Reporter:  wmb at firmworks.com  |       Owner:  mlj     
      Type:  defect             |      Status:  new     
  Priority:  blocker            |   Milestone:  MP Start
 Component:  hardware           |     Version:          
Resolution:                     |    Keywords:          
  Verified:  0                  |  
--------------------------------+-------------------------------------------

Comment(by Luna):

 Update the new test state
 Machine number: C-5-03-M2 (SHF733000EB), which has ever can't boot into
 system but it can boot now after use the command in OFW
 "''dir n:\boot\
 load n:\boot\olpc.fth
 load n:\boot\vmlinuz
 load n:\boot\olpcrd.img''"

 Cause the words "'''David Woodhouse points out that this might be caused
 by the CaFe? NAND problem (ticket #1905). That certainly seems plausible
 to me.''' "

 I use the test tool "http://david.woodhou.se/olpc-nandtest.tar.gz" to do
 test.

 There are some appearance of test.
 The test can action normal at the first time but after run to about
 0x20000000 address,
 it shows "0xXXXX0000 writing.......ECC corrected at 0xXXXX0000" at all
 location of nand flash like attached file.

-- 
Ticket URL: <https://dev.laptop.org/ticket/3247#comment:2>
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