User Guide

Contents

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™
Profiler
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.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.