Memory Exhausted after Drush install I've made a drush install of drupal 7.28 on my AWS server. I can confirm that the memory is set to 128M, all green on the reports -> site status page. The website will function normally and sporadically return no data, looking at the logs a tremendous amount of memory is trying to be allocated (assuming an infinite loop somewhere). Given that this is a basic install, no modules have yet been added what might be causing this?

PHP Fatal error:  Allowed memory size of 134217728 bytes exhausted (tried to allocate 140008587493184 bytes) in Unknown on line 0
Note that Drush and Drupal use different php.ini files.  This behavior is inherited from php, which allows for different configuration for commandline tools vs. web servers, so that your web server can be more locked down than your dev tools.

Use the drush status command to see the path to the php.ini file that Drush is using.

Use the drush status-report command to see the commandline equivalent of the reports -> site status page.  This will show you the real memory limit that is set for Drush.

Odds are, all you will need to do is change the memory limit setting in the php.ini file that Drush is using, and all will be well.