I am having the same issue that was described in the initial post here: http://www.osronline.com/showThread.cfm?link=106126
Michal, did you resolve this issue?
My USB driver seems to pass the Device Path Exerciser test when invoked manually on the test machine (Driver Verifier enabled). Yet, when submitted via DTM as part of the WHQL test, it reports a failure. There is not enough information in the log file to determine what the failure is. It seems to be failing during one of the Misc Test passes.
I setup a debug version of the driver, started WinDbg and re-ran the test from DTM. The weird thing there was that the test passed successfully! Could this just be another DTM bug? If so, I have not seen a QFE for it. I have the latest version installed.
Does anyone have any insight into this problem?
-John Goyette