#10441 NORM Not Tri: XO-1 and XO-1.5 response to invalid USB cabling configuration differs

[Zarro Boogs per Child]

#10441: XO-1 and XO-1.5 response to invalid USB cabling configuration differs
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 Reporter:  Quozl     |                 Owner:  wad          
     Type:  defect    |                Status:  new          
 Priority:  normal    |             Milestone:  Not Triaged  
Component:  hardware  |               Version:  not specified
 Keywords:            |           Next_action:  never set    
 Verified:  0         |   Deployment_affected:               
Blockedby:            |              Blocking:               
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 On XO-1.5, if a user attaches a device to a USB port, and the device
 provides current in violation of the USB specification, the laptop hard
 crashes.

 That is, the DCON ceases updates (image is gradually lost), and the
 speaker clicks about once per second.  On removal of the device, the
 laptop reboots.

 The hard crash occurs either in Linux or in OpenFirmware at the ok prompt.
 No kernel messages are logged.  No host serial port output occurs until
 the device is removed, then "+" is emitted by OpenFirmware.  The laptop
 boots normally.

 The symptom does not occur on XO-1.

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Ticket URL: <http://dev.laptop.org/ticket/10441>
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