I resolve the issue on my machine thanks to this article: http://linux.koolsolutions.com/2009/08/04/howto-fix-linux-hangfreeze-during-reboots-and-restarts/
All I had to do was to had 'reboot=pci' to the kernel parameter at boot time. For a permanent change on grub2, edit /etc/default/grub, and add 'reboot=pci' to the 'GRUB_CMDLINE_LINUX'
I resolve the issue on my machine thanks to this article: http:// linux.koolsolut ions.com/ 2009/08/ 04/howto- fix-linux- hangfreeze- during- reboots- and-restarts/
All I had to do was to had 'reboot=pci' to the kernel parameter at boot time. LINUX'
For a permanent change on grub2, edit /etc/default/grub, and add 'reboot=pci' to the 'GRUB_CMDLINE_