Fault-resistant just-in-time compiler

A non-transitory computer-readable medium comprising instructions for causing a programmable processor to:

• partition a plurality of program instructions into a plurality of traces for execution by a virtual machine operating on a computing device, wherein the virtual machine has first and second modes of execution, wherein each of the plurality of traces comprises one or more of the plurality of program instructions;
• compile a first trace in the plurality of traces to native machine code for the computing device;
• apply the second mode of execution to the first trace;
• determine an error condition caused by executing the compiled first trace using the second mode of execution;
• associate the first trace with the error condition using a record for the first trace in a trace repository;
• create a restore point for the first trace that represents a state of the virtual machine prior to completing application of the second mode of execution to the first trace;
• terminate the virtual machine after executing the compiled first trace past a point representing a native machine code instruction from which the virtual machine is unable to recover to the restore point;
• and
• after determining the error condition, apply the first mode of execution to the first trace to recover the virtual machine from the error condition.

A computing device, comprising:

• one or more processors;
• a virtual machine having first and second modes of execution and operable by the one or more processors to:
• partition a plurality of program instructions into a plurality of traces for execution, wherein each of the plurality of traces comprises one or more of the plurality of program instructions;
• compile a first trace in the plurality of traces to native machine code for the computing device;
• and
• apply the second mode of execution to the first trace;
• means for determining executing the compiled first trace using the second mode of execution causes an error condition,
• wherein the virtual machine is further operable by the one or more processors to:
• associate the first trace with the error condition using a record for the first trace in a trace repository;
• create a restore point for the first trace that represents a state of the virtual machine prior to completing application of the second mode of execution to the first trace;
• terminate the virtual machine after executing the compiled first trace past a point representing a native machine code instruction from which the virtual machine is unable to recover to the restore point;
• and
• after determining the error condition, apply the first mode of execution to the first trace to recover the virtual machine from the error condition.