Electrical computers and digital processing systems: memory – Address formation – Address mapping
Reexamination Certificate
2006-06-12
2009-02-10
Kim, Hong (Department: 2185)
Electrical computers and digital processing systems: memory
Address formation
Address mapping
C711S165000, C711S203000, C711S156000, C710S260000
Reexamination Certificate
active
07490214
ABSTRACT:
According to one embodiment of the invention, a technique is provided for relocating the contents of kernel pages in a manner similar to techniques used for relocating the contents of user pages. Before the contents of a source page are moved to a target page, for each entry of a plurality of entries that correspond to the source page, it is determined whether a mapping indicated in that entry is a mapping into kernel virtual memory address space or user virtual memory address space. If the mapping is into user virtual memory address space, then the entry is marked invalid. If the mapping is into kernel virtual memory address space, then the mapping is marked suspended. Marking an entry suspended causes processes and threads that try to access the entry's mapping to wait until the entry is no longer marked suspended. Consequently, kernel pages may be distributed among all computing system boards.
REFERENCES:
patent: 4787031 (1988-11-01), Karger et al.
patent: 5577231 (1996-11-01), Scalzi et al.
patent: 5659798 (1997-08-01), Blumrich et al.
patent: 6349355 (2002-02-01), Draves et al.
patent: 2005/0144422 (2005-06-01), McAlpine et al.
patent: 2006/0107020 (2006-05-01), Stillwell et al.
patent: 2007/0288718 (2007-12-01), Cholleti et al.
patent: 2008/0005495 (2008-01-01), Lowe et al.
“Solaris 10 What's New” Sun Microsystems 4150 Network Circle, Santa Clara CA 95054,USA, PartNo. 817-0547-18, May 2006, pp. 1-162.
Cholleti Udayakumar
McEnroe Sean
Studzinski Stan J.
Hickman Palermo & Truong & Becker LLP
Kim Hong
Nicholes Christian A.
Sun Microsystems Inc.
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