Patents by Inventor Srikar Dronamraju

Srikar Dronamraju has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Handling uncorrected memory errors inside a kernel text section through instruction block emulation
    Patent number: 10922180
    Abstract: A technique for handling uncorrected memory errors (UEs) inside a kernel text section, the kernel text section being stored in a memory that is operably coupled to a CPU executing kernel program instructions. In an embodiment, a UE is detected that affects the kernel text section. The current instruction affected by the UE is identified. The UE-affected instruction is recovered by loading a copy thereof into the memory from a kernel image maintained in persistent storage. The UE-affected instruction is emulated using the copy of the UE-affected instruction. The instruction pointer of the CPU is then incremented to point to a next instruction in the memory that would normally be executed by the UE-affected instruction had there been no UE.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: February 16, 2021
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Mahesh J. Salgaonkar, Anshuman Khandual, Srikar Dronamraju, Haren Myneni
  • HANDLING UNCORRECTED MEMORY ERRORS INSIDE A KERNEL TEXT SECTION THROUGH INSTRUCTION BLOCK EMULATION
    Publication number: 20200110665
    Abstract: A technique for handling uncorrected memory errors (UEs) inside a kernel text section, the kernel text section being stored in a memory that is operably coupled to a CPU executing kernel program instructions. In an embodiment, a UE is detected that affects the kernel text section. The current instruction affected by the UE is identified. The UE-affected instruction is recovered by loading a copy thereof into the memory from a kernel image maintained in persistent storage. The UE-affected instruction is emulated using the copy of the UE-affected instruction. The instruction pointer of the CPU is then incremented to point to a next instruction in the memory that would normally be executed by the UE-affected instruction had there been no UE.
    Type: Application
    Filed: October 3, 2018
    Publication date: April 9, 2020
    Inventors: Mahesh J. Salgaonkar, Anshuman Khandual, Srikar Dronamraju, Haren Myneni