[support] PHP memory error

I am getting this error in Drush everytime I try to update core: *Drush command terminated abnormally due to an unrecoverable error. [error] Error: Allowed memory size of 67108864 bytes exhausted (tried to allocate 83 bytes) in /home3/tonymacc/drush/commands/core/sitealias.drush.inc, line 46 * I have checked the php.inis I can find, not knowing which one is pulling (only 2 actually), and they both have a line about php memory.

php.ini at home3/tonymacc has only two lines *php_value memory_limit = "128M" magic_quotes_gpc off * php.ini at home3/tonymacc/public_html has a full blown php.ini with the line: *php_value memory_limit = "128M".*

Is the error message referring to the php memory or something else?

Thanks Tony