• Cause:

    Run kvm_zap_rmapp. Then, the kernel crashes.

    The scope of impact: the versions earlier than kernel-3.10.0-327.53.1.el7.x86_64
    Note: The kernel version of ZStack CentOS 7.2 is 3.10.0-327.36.1.el7.x86_64.

    For more information, see Red Hat.

  • Solution:
    • You can upgrade the kernel of the compute node from the original CentOS 7.2 to the latest CentOS 7.4 of ZStack.
    • Also, you can reference the following method to temporarily address the problem:
      1. Add options kvm_intel pml=0 to the KVM module configuration file of the compute node.
      2. Run the following command:
        echo "options kvm_intel pml=0" >>/etc/modprobe.d/kvm.conf
      3. Restart the host.