#9100 NORM 9.1.0: 2.6.27+ early boot crashes (was: 2.6.27 early boot crashes)

[Zarro Boogs per Child]

#9100: 2.6.27+ early boot crashes
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           Reporter:  dsd        |       Owner:  dsaxena      
               Type:  defect     |      Status:  new          
           Priority:  normal     |   Milestone:  9.1.0        
          Component:  kernel     |     Version:  not specified
         Resolution:             |    Keywords:               
        Next_action:  never set  |    Verified:  0            
Deployment_affected:             |   Blockedby:               
           Blocking:             |  
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Comment(by dsd):

 My findings so far

  * nothing is output from the kernel on the serial console, so it is a
 very early freeze from the kernel standpoint
  * the serial console does show a newline character *after* the "loading
 ramdisk" line, which seems to indicate that the ramdisk does load
 correctly and the crash is triggered by something that happens after
  * the OFW frame key does not cause the debugger to start
  * waiting a few minutes does seem to increase success rate - I have had
 very little success with on,off,on,off,on,off type cycles, but if you
 insert a few minutes wait inbetween then it does feel to be more likely to
 boot
  * once booted, you can reboot indefinitely and it won't hang
  * I discount reports that this is related to external devices, swap
 partitions, etc. I run my  XOs with the standard configuration and no
 external devices and I frequently see this bug
  * I've seen this ever since we upgraded kernel after 8.2
  * the 8.2 kernels continue to work fine

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Ticket URL: <http://dev.laptop.org/ticket/9100#comment:2>
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