Crash when using Sigar in C#

[chaeseongsik]

using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Hyperic.Sigar.Tests
{
    [TestClass]
    public class SigarTests
    {
        [TestMethod]
        public void CpuTest()
        {
            Sigar sigar = new Sigar();
            while (true)
            {
                sigar.Cpu();
                Thread.Sleep(1000);

            }
        }
    }
}

Crash occurs even after executing the above code for a while.