The engine reserves a strict, static amount of RAM/VRAM buffer (the "state pool") to load script entities, vehicles, and dynamic assets.
The error is a notorious issue in Call of Duty: Black Ops 2 that typically occurs during map loads in Zombies mode or multiplayer. It is almost exclusively caused by a memory allocation failure where the game attempts to load assets into a memory block that has been restricted by the Windows operating system.
To fix the error in Call of Duty: Black Ops 2 , players must bypass an infamous memory leak bug that freezes the PC game during specific campaign missions—most notably "Cordis Die" (the Los Angeles mission). Because Activision never issued an official patch for this internal engine memory allocation failure, players must rely on community-verified workarounds to resolve the crash.
This error is a within the BO2 engine. It occurs when: The engine reserves a strict, static amount of
Fix: Call of Duty: Black Ops 2 "Failed to Allocate from State Pool" Error
void optimizeMemoryAllocation() // Example: Increase the working set HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId()); if (hProcess) int minWorkingSet = 1024 * 1024; // 1MB int maxWorkingSet = 2048 * 1024; // 2MB SetProcessWorkingSetSize(hProcess, minWorkingSet, maxWorkingSet); CloseHandle(hProcess);
If you are still experiencing crashes after applying these steps, let me know: Are you playing on or the official Steam version? To fix the error in Call of Duty:
Understanding the "Failed to Allocate from State Pool" Error
in the preceding mission can sometimes prevent the crash in the subsequent LA mission. Steam Community Console (Xbox 360) Advice Avoid Pre-Game Editing
During the Los Angeles mission, the sheer volume of drone explosions, falling buildings, and geometry models overloads this allocated space. It occurs when: Fix: Call of Duty: Black
Are you playing the vanilla or using a custom client? What round or map does the crash happen on most often?
Run the Plutonium launcher, select Black Ops 2 , and point the directory path to your Steam BO2 installation folder.