MySQL InnoDB Huge page Error

What Problems? 

When you configure large-pages system variables enable, You may see errors.

InnoDB: HugeTLB: Warning: Failed to allocate 4194304 bytes. errno 12
InnoDB HugeTLB: Warning: Using conventional memory pool

What for?

In MySQL, InnoDB support large pages to allocate memory for its buffer pool.  So, When you confugre large-pages variables enable for using large page, The system must be configure 4MB as Huge page.
If huge page's size is less than 4 MB, You must increase greater than 4MB.

What can I do for fixing Problem?

You should increase greater than 4MB.
You can find current page size.

grep -i huge /proc/meminfo

HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

You can see more detail this url.
http://dev.mysql.com/doc/refman/5.6/en/large-page-support.html