I am using:
PHP Built On Linux lingeriemart2 2.6.32-573.3.1.el6.x86_64 #1 SMP Mon Aug 10 09:44:54 EDT 2015 x86_64
Database Version 5.6.26
Database Collation utf8_general_ci
PHP Version 5.6.13
Web Server Apache/2.2.15 (Red Hat)
WebServer to PHP Interface apache2handler
Joomla! Version Joomla! 3.4.1 Stable [ Ember ] 21-March-2015 20:30 GMT
Joomla! Platform Version Joomla Platform 13.1.0 Stable [ Curiosity ] 24-Apr-2013 00:00 GMT
If you go to Virtuemart > Products > Click on New (to add new product) you will get this message (which is enabled in configuration), if you try to Cancel, it will not let you. I have to set my memory limit to 512M in order for the page to show up when I click on the New button. Use to run fine on 64M in php.ini.
Message
vmdebug PHP 5.4
vmdebug Show All Errors
vmdebug $siteLang: en-GB self::$_jpConfig->lang en_gb
vmdebug vmTime: time to load config: 0.00314092636108398
vmdebug Start used Ram 8M
vmdebug vmTime: VirtueMartControllerProduct Finished task product: 4.91387701034546
vmdebug End used Ram 368.5M
vmdebug Peak memory peak 382.25M