发明名称 |
Method and apparatus that detects and tolerates inconsistencies between the cache and main memory, and the translation lookaside buffer and the virtual memory page table in main memory |
摘要 |
Inconsistencies between cache and memory in a memory system operating in a computer are traced and corrected. A cache entry is checked against a counterpart memory entry to trace inconsistencies between the cache entry and the memory entry and to correct the cache entry. A page table entry in memory with a zero mapping mark is checked against a counterpart page entry in a translation lookaside buffer. Inconsistencies between the page table entry with a zero mapping mark and the existence of a counterpart page entry in the translation lookaside buffer is traced. The inconsistency is corrected by deleting the counterpart page entry in the translation lookaside buffer. Address mapping is checked comparing a page entry in the translation lookaside buffer against a counterpart page table entry in the memory. Inconsistencies between the page entry and the page table entry are traced and corrected.
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申请公布号 |
US6032230(A) |
申请公布日期 |
2000.02.29 |
申请号 |
US19980221535 |
申请日期 |
1998.12.28 |
申请人 |
SUN MICROSYSTEMS, INC. |
发明人 |
FULLER, BILLY J.;PASSMORE, DALE R. |
分类号 |
G06F12/08;G06F11/16;G06F12/10;(IPC1-7):G06F11/00 |
主分类号 |
G06F12/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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