For the failure,
klog: HIGH Kernel message: [ 0.795261] \_SB_.PCI0:_OSC invalid UUID
seems from the NEXP value from firmware equal to zero, cause the _OSC return 
got invalid UUID.

            Method (_OSC, 4, Serialized)  // _OSC: Operating System Capabilities
            {
                ...
                If (LAnd (LEqual (Arg0, GUID), NEXP))
                {
                   ....

                }
                Else
                {
                    Or (CDW1, 0x04, CDW1)
                    Return (Local0)
                }
            }

** Changed in: linux-lts-saucy (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1279169

Title:
  [Dell Latitude 3330] HIGH failures found in fwts report

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