Ben Y Cheng

US Patent:

8359496, Jan 22, 2013

Filed:

Aug 31, 2010

Appl. No.:

12/872822

Inventors:

Daniel R. Bornstein - San Francisco CA, US
Ben C. Cheng - Cupertino CA, US
William B. Buzbee - Half Moon Bay CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06F 11/00

US Classification:

714 45, 717148

Abstract:

The present disclosure relates to techniques for potentially increasing the reliability and/or stability of systems having virtual machines that support multiple modes of execution. For example, as described herein, a virtual machine partitions 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, and wherein each of the plurality of traces comprises one or more of the plurality of program instructions. The virtual machine applies the second mode of execution to a first trace in the plurality of traces and determines an error condition that is caused by the application of the second mode of execution to the first trace. After determining the error condition, the virtual machine applies the first mode of execution to the first trace to recover the virtual machine from the error condition.

US Patent:

8201026, Jun 12, 2012

Filed:

Sep 30, 2011

Appl. No.:

13/250513

Inventors:

Daniel R. Bornstein - San Francisco CA, US
Ben C. Cheng - Cupertino CA, US
William B. Buzbee - Half Moon Bay CA, US

Assignee:

Google Inc. - Mountain View CA

International Classification:

G06F 11/00

US Classification:

714 45, 717148

Abstract:

The present disclosure relates to techniques for potentially increasing the reliability and/or stability of systems having virtual machines that support multiple modes of execution. For example, as described herein, a virtual machine partitions 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, and wherein each of the plurality of traces comprises one or more of the plurality of program instructions. The virtual machine applies the second mode of execution to a first trace in the plurality of traces and determines an error condition that is caused by the application of the second mode of execution to the first trace. After determining the error condition, the virtual machine applies the first mode of execution to the first trace to recover the virtual machine from the error condition.