#9707 BLOC 1.5-CTe: Crash during resume on XO-1.5

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#9707: Crash during resume on XO-1.5
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 Reporter:  wad      |                 Owner:  dsaxena  
     Type:  defect   |                Status:  new      
 Priority:  blocker  |             Milestone:  1.5-CTest
Component:  kernel   |               Version:  1.5-B2   
 Keywords:           |           Next_action:  diagnose 
 Verified:  0        |   Deployment_affected:           
Blockedby:           |              Blocking:           
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 On an XO-1.5 B2 prototype, running q3a16 and os42, I set up the laptop as
 indicated at:
 http://wiki.laptop.org/go/XO1.5_SD_suspend#Automating_resumes

 I set up autowack from OFW, enabled the EC as a wakeup source using ACPI,
 then started a loop running, suspending the machine after a second of
 uptime.

 The WLAN modules were removed from /lib/modules, and manually removed
 after boot as well (they are also provided by the initrd ?).
 NetworkManager was stopped.

 After 1441 cycles without a crash, the laptop crashed on resume the 1442nd
 time with a "unable to handle kernel paging request" message.

 This was the first time I had managed to get this script to run more than
 140 - 150 times.  Every time the crash symptoms appeared the same...

 The serial port output is attached.

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Ticket URL: <http://dev.laptop.org/ticket/9707>
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