Checkpoint debugging using mirrored virtual machines

Patent metadata

Field	Value
Publication number	US-8977906-B2
Application number	US-201213621221-A
Country	US
Kind code	B2
Filing date	Sep 15, 2012
Priority date	Aug 9, 2011
Publication date	Mar 10, 2015
Grant date	Mar 10, 2015

Abstract

A computer-implemented method of debugging computer code includes: obtaining state information corresponding to a first machine at a checkpoint initiated during execution of the computer code on the first machine; and configuring the second machine to a same operating state as the first machine at the checkpoint to create a mirrored version of the first machine. The method also includes receiving a notification that execution of the program on a first machine has failed, and in response to receiving the notification: triggering a processor of the second machine to initiate execution of a copy of the code from a specific code execution point at which the checkpoint was; activating a debugger module to run concurrently with the execution of the program on the second machine and collect and store the debug data as corresponding to execution failure of the computer code at the first machine.

First claim

What is claimed is:

1. A computer-implemented method of debugging computer code executing on a first machine, the method comprising:
obtaining state information corresponding to a previous operating state of the first machine at a checkpoint performed during the execution of the computer code on the first machine;
configuring, with the state information obtained, a second machine having a same physical configuration to a same operating state as the previous operating state of th…

Assignees

• Mcneeney Adam J
• IBM

Inventors

• Mcneeney Adam J

Classifications

• G06F11/1438

  Physics · mapped topic

• G06F11/1484 Primary

  Physics · mapped topic

• G06F11/366

  Physics · mapped topic