From State Pool Fix — Call Of Duty Black Ops 2 Failed To Allocate
If your system is running low on RAM, it can cause the game to fail to allocate memory, resulting in the "Failed to Allocate from State Pool" error. To fix this:
BO2 Error: Failed to allocate from state pool :: Call of Duty If your system is running low on RAM,
Right-click on Call of Duty: Black Ops 2 (Multiplayer, Zombies, or Campaign). Select Properties and then the Installed Files tab. Click Verify integrity of game files. If your system is running low on RAM,
For the "Cordis Die" (Los Angeles) mission, some users found that hitting the Escape key during the car sequence with the President can prevent the crash. Technical Fixes for PC If your system is running low on RAM,
Here’s a step-by-step guide to fix it: