Microsoft Corporation
CROSS-THREAD MEMORY INDEXING IN TIME-TRAVEL DEBUGGING TRACES

Abstract:

Modifying a trace to expose memory cell values prior to execution times corresponding to events that caused the memory cell values to be recorded. A computer system accesses a trace that represents prior execution of one or more threads and identifies a plurality of data packets that each represents a corresponding memory cell value read from a particular memory cell. The computer system selects a particular memory cell value represented in one of the data packets. The computer system modifies the trace by removing all but one of the data packets from at least one trace fragment, or by inserting data into the trace that exposes the selected particular memory cell value at an execution time during trace replay that is prior to execution times of the execution events corresponding to the data packets and removing the data packets from the trace.