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Beginner
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Sampling drivers not loaded correctly

It's been 3 days that I'm trying to make hardware event-based sampling work on intel vtune but at this point I cannot really figure out what my problem can be.

I'm running Ubuntu 18.04 on a macbook pro with Intel i7-4870HQ, 2.5Ghz. It's not a virtual machine, it's booted and I'm using rEFInd for selecting the OS at startup. When I run uname -r I get: 5.3.0-51-generic.

I installed vtune as described in the installation page. I also checked the kernel configuration to match for correct hardware event-based sampling and I also set the kptr_restrict to 0.

To open vtune I run sudo ./vtune-gui from /opt/intel/vtune_profiler_2020.1.0.607630/bin64/.

The binary that gets profiled is compiled with gcc and using the -g and -O3 flags.

However when I try running the vtune profiler with hardware event-based sampling I get the warning displayed in the image at the bottom. Before I also had the warnings like: cannot locate 'vtssoo.ko', and: cannot locate debugging information for the linux kernel. Now they're gone but I'm not sure if they are solved though.

I think these warnings boil down to the drivers. I run ./insmod-sep -q from /opt/intel/vtune_profiler_2020.1.0.607630/sepdk/src and I get this output:

pax driver is loaded and owned by group "vtune" with file permissions "660".
socperf3 driver is not correctly loaded.
sep5 driver is not correctly loaded.
socwatch driver is loaded.
vtsspp driver is loaded and owned by group "vtune" with file permissions "660".

2 drivers are not loaded correctly. Following the instructions to build the drivers didn't help either and I still get this result.
A colleague of mine has the same setup (same OS  and version) but he's using a lenovo and not macbook pro. In his case after the installation he could already run hardware event-based sampling without warnings and with all the useful information.
I'm starting to think that it might be something with the macbook pro build. What could the problem be? I would really appreciate any help because I really need this feature. Thanks a lot for you effort and time.

Warnings

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3 Replies
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Moderator
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Hi Nihat,

We are forwarding this case for SME to check. They will get back to you on this.

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Beginner
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Hi Chithra,

Thanks for the answer. I will be waiting.

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Hi Nihat,

Could you fully unload the driver (./rmmod-sep -s) and load it again? (./insmod-sep)
I need a full output of the load script.

Thanks.

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