Re: #12564 LOW 4-firmw: [CL4] Can’t boot machine after run “memetest” in OFW.

[Zarro Boogs per Child]

#12564: [CL4] Can’t boot machine after run “memetest” in OFW.
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           Reporter:  tomyin               |       Owner:  Quozl        
               Type:  defect               |      Status:  assigned     
           Priority:  low                  |   Milestone:  4-firmware   
          Component:  ofw - open firmware  |     Version:  not specified
         Resolution:                       |    Keywords:               
        Next_action:  add to release       |    Verified:  0            
Deployment_affected:                       |   Blockedby:               
           Blocking:                       |  
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Changes (by Quozl):

  * status:  new => assigned
  * next_action:  never set => add to release
  * component:  not assigned => ofw - open firmware
  * milestone:  Not Triaged => 4-firmware
  * owner:  => Quozl


Old description:

> OS: 31030o4
> OFW: Q7B16
> EC: 0.3.12
> Procedure:
> 1. Input “memtest” in OFW.
> 2. Press esc key to stop “memtest” after it run several cycle.
> 3. Input “boot” to boot machine. It shows “Scan for: OLPCOFW failed”.

New description:

 OS: 31030o4
 OFW: Q7B16
 EC: 0.3.12

 Procedure:
  * Input “memtest” in OFW.
  * Press esc key to stop “memtest” after it run several cycle.
  * Input “boot” to boot machine. It shows “Scan for: OLPCOFW failed”.

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Comment:

 Thanks.  Reformatted ticket description to meet trac coventions, improving
 readability.

 Reproduced symptom.

 Diagnosis: this is due to ''diag-switch?'' being left set after
 ''memtest'' is stopped.  When ''diag-switch?'' is set, the default boot is
 via network.  The default network name is OLPCOFW.

 Fixed in [http://tracker.coreboot.org/trac/openfirmware/changeset/3564 svn
 3564] by saving and restoring the value.

 Test build: http://dev.laptop.org/~quozl/q7b16jc.rom

 Test case:
  * type ''memtest'', press enter,
  * press enter once more so that only one cycle of test is run,
  * once the test has completed, try to boot, the expected result is to
 boot into Linux.

 Will be in next release.

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Ticket URL: <http://dev.laptop.org/ticket/12564#comment:1>
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