View source for US Patent Application 18216988. Uncorrectable Memory Error Recovery For Virtual Machine Hosts simplified abstract

=Uncorrectable Memory Error Recovery For Virtual Machine Hosts=


==Organization Name==

[[Google LLC]]


==Inventor(s)==

[[Jue Wang of Redmond WA (US)]]


==Uncorrectable Memory Error Recovery For Virtual Machine Hosts - A simplified explanation of the abstract==


*This abstract for appeared for US patent application  number 18216988 Titled 'Uncorrectable Memory Error Recovery For Virtual Machine Hosts'

==Simplified Explanation==

The abstract describes a method for recovering from memory errors in a computer system. Instead of causing a complete shutdown, the system can identify the source of the error and take appropriate recovery actions. This includes handling errors caused by the system's kernel accessing memory in virtual machines, as well as errors caused by known defects in the hardware. The system can also detect overflow errors raised by the processor due to memory errors.


==Original Abstract Submitted==

Methods, systems, and apparatus, including computer-readable storage media for uncorrectable memory recovery. Different sources of uncorrectable memory error are handled to provide for recovery actions by a host kernel of a machine hosting one or more virtual machines. Rather than defaulting to kernel panic behavior, the host kernel can identify the source of uncorrectable error, and cause the host machine and/or the affected virtual machines to take recovery action that is less disruptive than abrupt shutdown from panic. For example, the host kernel can handle uncorrectable memory error caused by kernel accesses to guest memory of a host virtual machine, as well as uncorrectable memory error improperly raised as a result of known defects in host machine hardware. The host kernel can also be configured to detect sources of overflow in exceptions raised by a processor as a result of uncorrectable memory error.