Re[2]: HLK oplock test hangs

NTFSD
1

Just to add to this. If you run them separately, some of the tests
require the OpKey filter driver so be sure to install and load it prior
to running the tests. When I run them from the cmd line, I always load
the OpKey filter though it is not needed for all of the tests.

Pete

–
Kernel Drivers
Windows File System and Device Driver Consulting
www.KernelDrivers.com
866.263.9295

------ Original Message ------
From: “Scott Noone”
To: “Windows File Systems Devs Interest List”
Sent: 3/22/2017 7:53:08 AM
Subject: Re:[ntfsd] HLK oplock test hangs

>In addition to what Pete said, I highly recommend running the oplock
>tests outside of the HLK environment. The command line utility that
>runs these tests is actually quite good about letting you run
>individual test cases. Makes it much easier to track down issues in
>individual test cases this way.
>
>-scott
>OSR
>@OSRDrivers
>
>wrote in message news:xxxxx@ntfsd…
>
>Hello All.
>
>My company has a filesystem filter driver and when running the HLK
>oplock tests the test itself hangs during one of the oplock upgrade
>tests.
>Did any of you have any issue like this? This occurs on Windows 10
>version 1607 64-bit, but not on version 1511 32/64-bit and 1607 64-bit.
>
>Thanks,
>Roney
>
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2

Thanks, I’ll take a look on that.

I forgot to say that I’ve run the same tests using a windows bundled device driver, picked at random the luafv.sys.
It also stuck in the same oplock test, however, I haven’t looked at each individual test result.

Regards,
Roney

3

Are you calling FltCreateFilexxx() in your filter?

If your filter is in the stack then it won’t matter what filter you pick
in the HLK target selection, the operation will still break. Maybe post
a stack trace from WinDbg.

Pete

–
Kernel Drivers
Windows File System and Device Driver Consulting
www.KernelDrivers.com
866.263.9295

------ Original Message ------
From: xxxxx@gastecnologia.com.br
To: “Windows File Systems Devs Interest List”
Sent: 3/22/2017 12:09:50 PM
Subject: RE:[ntfsd] HLK oplock test hangs

>Thanks, I’ll take a look on that.
>
>I forgot to say that I’ve run the same tests using a windows bundled
>device driver, picked at random the luafv.sys.
>It also stuck in the same oplock test, however, I haven’t looked at
>each individual test result.
>
>Regards,
>Roney
>
>—
>NTFSD is sponsored by OSR
>
>
>MONTHLY seminars on crash dump analysis, WDF, Windows internals and
>software drivers!
>Details at http:
>
>To unsubscribe, visit the List Server section of OSR Online at
>http:</http:></http:>

4

Peter, I’ll need to check that.
However, I’ve run the test on LUAFV.SYS on a machine with no other software then the HLK client and Windows 10 version 1607 64-bit. The intent was to make sure the environment was ok, so, I’m not sure.