Memory failure recovery method, information processing...

Details Memory failure recovery method, information processing... Memory failure recovery method, information processing...

2008-02-08

2011-11-01

Maskulinski, Michael (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006100, C714S006320

Reexamination Certificate

active

08051333

ABSTRACT:
Upon occurrence of a memory error which is difficult to correct, CPU interrupts a process under execution in response to interrupt signal output from error detection device, and transfers the control to the OS. The OS references attributes of a page stored in a page frame which has suffered the memory error. When read-only is indicated, physical memory management table is updated to set the page frame, which has suffered the error, into a disabled state. Then, page table is updated such that a virtual page stored in the page frame which has suffered the error is not assigned to any page frame, followed by resumption of the execution of the process. After execution of the process is resumed, a page fault process is invoked to store the virtual page which has encountered the memory error in another normal page frame.

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International Search Report for PCT/JP2008/052173 mailed Apr. 22, 2008.

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