Boots – shoes – and leggings
Patent
1986-01-16
1988-08-02
Williams, Jr., Archie E.
Boots, shoes, and leggings
364200, G06F 1208
Patent
active
047617373
ABSTRACT:
A memory management system method increases the size of a segment in blocks of 64K virtual pages in response to the system detecting that the requested page has been protected. The conventional UNIX type System Calls create and open files in virtual memory. All pages are protected "read only" until a SHMAT type System Call is made to operate on a page at a specific address. At that point in the process, a protection exception is recognized by the system and the UNIX kernel takes control to remove the protection and update the appropriate data structures to reflect the new status of the page and the addresses in real memory where the page may be found. Segments containing mapped files are also extended by the method.
REFERENCES:
patent: 4084226 (1978-04-01), Anderson et al.
patent: 4197588 (1980-04-01), Cason et al.
patent: 4445170 (1984-04-01), Hughes et al.
patent: 4481573 (1984-11-01), Fukunaga et al.
patent: 4536837 (1985-08-01), Olson et al.
patent: 4581702 (1986-04-01), Saroka et al.
patent: 4638426 (1987-01-01), Chang et al.
patent: 4718008 (1988-01-01), Chang et al.
patent: 4730249 (1988-03-01), O'Quinn et al.
Duvall Keith E.
Hooten Anthony D.
O'Quin, III John C.
Smith Todd A.
Anderson Robert D.
Cummins Richard E.
International Business Machines - Corporation
Williams Jr. Archie E.
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