Error Message: Problem Accessing the Sampling Driver

Linux* only error message: Problem accessing the sampling driver. The driver may need to be (re)started.

Cause

Intel® VTune™ Amplifier cannot access the hardware event-based sampling (EBS) driver required to run a hardware event-based sampling analysis type. This problem happens if the sampling driver was not loaded or you do not have correct permissions.

Solution

Make sure the sampling drivers are loaded:

> lsmod | grep sep3_1 or > lsmod | grep sep4_

> lsmod | grep pax

If the drivers are already loaded, make sure you are a member of the vtune user group. You can check the /etc/group file or contact your system administrator to find out if you are a member of this group.

For more complete information about compiler optimizations, see our Optimization Notice.
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