#4449 HIGH MP Star: Kernel crash upon resume due to memory corruption

Zarro Boogs per Child bugtracker at laptop.org
Wed Oct 24 21:40:42 EDT 2007


#4449: Kernel crash upon resume due to memory corruption
----------------------+-----------------------------------------------------
 Reporter:  wad       |       Owner:  wad           
     Type:  defect    |      Status:  new           
 Priority:  high      |   Milestone:  MP Start      
Component:  hardware  |     Version:  CTest Hardware
 Keywords:            |    Verified:  0             
----------------------+-----------------------------------------------------
 When doing a large number of suspend/resume cycles (tens of thousands), we
 occasionally see a kernel crash upon resume.

 After filtering out the kernel crashes due to actual kernel bugs, we are
 left with a number of crashes which appear due to hardware problems,
 specifically memory corruption.

 This seems to favor certain laptops, and is not seen on all machines.
 There is a special version of OFW (q2d01a) which implements a comparison
 of memory before and after the resume.  It may be used to test
 specifically for this case.

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Ticket URL: <https://dev.laptop.org/ticket/4449>
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