Stablizing operation of an emulated system

An emulation system, comprising:

• a data processing system including at least one instruction processor coupled to a memory;
• a first operating system (OS) executing on the at least one instruction processor, wherein the first OS includes instructions of a first instruction set that are native to the instruction processor;
• means for emulating a second OS and a plurality of application programs on the first OS, wherein the second OS and application programs include instructions of a second instruction set that are not native to the instruction processor;
• means for periodically requesting by the emulated second OS for memory statistics from the first OS, wherein the memory statistics indicate a current state of operating parameters of the memory of the data processing system used by the first OS in managing the data processing system;
• and
• means for limiting execution of the application programs by the second OS in response to the memory statistics provided by the first OS to the second OS.

An emulation system, comprising:

• a data processing system including at least one instruction processor coupled to a memory, and a first operating system (OS) executing on the at least one instruction processor, wherein the first OS includes instructions of a first instruction set that are native to the instruction processor;
• an instruction processor emulator executable on the at least one instruction processor, wherein the instruction processor emulator emulates execution of instructions of a second instruction set that are not native to the at least one instruction processor;
• a second OS and a plurality of application programs emulated on the instruction processor emulator, wherein the second OS and application programs include instructions of a second instruction set that are not native to the instruction processor;
• wherein the second OS executes program code that performs the steps including,
• periodically requesting memory statistics from the first OS, wherein the memory statistics indicate a current state of operating parameters of the memory of the data processing system used by the first OS in managing the data processing system;
• determining whether the current state of operating parameters indicated by the memory statistics is acceptable or unacceptable;
• selecting, in response to the current state being unacceptable, between terminating one or more of the plurality of application programs and returning to the first OS memory that is allocated to the second OS;
• and
• performing the selected one of terminating one or more application programs and freeing memory.