in the event that some people did not know about this and even though it is now posted as a warning message on the top of the import and export page.  I thought i would go ahead and post this, this was originally reported in  august of this year.

What this means is that if you have really large DB you need to either export it as chunks or import it is chunks. 

here is the bug link  http://sourceforge.net/p/phpmyadmin/bugs/4046/