VTune™ Amplifier XE 2013 supports new feature called “Call Stack Collection” for hardware PMU event-based sampling. However if the user set option “Allow multiple runs” in vtune’s project properties and enable “Call Stack Collection” option, to run some predefined analysis such as snb-general-exploration, snb-memory-access, etc. It will cause segmentation fail. Example command line:
# amplxe-cl -collect snb-general-exploration -knob enable-stack-collection=true -allow-multiple-runs -- /bin/ls
Message you will see:
Exception: 0xb, Segmentation fault
The reason is that Call Stack Collection doesn't support Multiple Runs. When predefined analysis (or your defined analysis) includes many hardware events (>6), and option “-allow-multiple-runs” is enabled, this situation cannot support Call Stack Collection.
Choose one of below options -
1. Don’t use “-allow-multiple-runs”, use Event Multiplexing instead
2. Disable Call Stack Collection, use option “-knob enable –stack-collection=false”