HLK oplock test hangs

NTFSD
1

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

2

You need to propagate the OpLock ECPs or this will happen. There is a
recent blog entry on this somewhere …

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: 3/21/2017 12:55:49 PM
Subject: [ntfsd] HLK oplock test hangs

>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
>
>—
>NTFSD is sponsored by OSR
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>http:</http:></http:>

3

Sorry, I jumped to a conclusion too soon probably … are you performing
any opens of underlying files in pre-open? Are you able to get a stack
trace of the threads which are blocked through 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: 3/21/2017 12:55:49 PM
Subject: [ntfsd] HLK oplock test hangs

>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
>
>—
>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

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