[Typo3] Backup: Allowed memory size exhausted

[Robert Markula]

Hi folks,
Trying to do a T3D backup (export) of my project using the "impexp" 
extension, I get the following infamous error message:

"Fatal error: Allowed memory size of 31457280 bytes exhausted (tried to 
allocate 3141669 bytes) in 
/usr/www/users/t3/typo3/sysext/impexp/class.tx_impexp.php on line 1357"

I've got a memory_limit of 30M, shouldn't this be sufficient?

Regards,
Ro