ubuntu Kernel panic while installing CentOS 7 in VirtualBox

I have a laptop with Xubuntu desktop 14.10 , and I installed VirtualBox and updated it to the latest version .

I'm trying to install CentOS 7 (source downloaded from the official site) as a VM, but each time I begin the installation the laptop itself suffers from a kernel panic.

I wonder how a VM will kernel panic the laptop, and I want to know how to solve this issue.

• The iso I use is CentOS-7.0-1406-x86_64-Everything.iso


• The version of VirtualBox is 4.3.18.r96516


• 
  

  Laptop model: Dell E6430

  
  


• 
  

  ^{VM Settings}
  
  

  
  


• 
  

  ^{Crash photo}
  
  

  
  

  
  uname -a  
  Linux Laptop 3.16.0-25-generic #33-Ubuntu SMP Tue Nov 4 12:06:54 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux