Sometimes says my system is not vulnerable

[bobpaul]

I have a Xeon X5675 on an unpatched system. This CPU is known to be vulnerable.

I have to run ./run.sh several times before it detects my system as vulnerable. Meanwhile, every time I run it tells me to submit my CPU to the not-vulnerable bug. :-/

Should ./meltdown should be run with a value larger than 10? I've tried 40 (catches 30% of the time) as well as 100 (catches it 50% of the time).

[paboldin]

It may depend on the system load. As this is a test I advice to run it on non-loaded system.