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by DblPlusUngood
2619 days ago
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> I don't see how it could. Kernel data structures don't go on pagecache pages. Kernel data structures could end up on a pagecache page: all it takes is a reference counting bug and the page could be reallocated in the kernel heap, which is directly mapped by user space. Keeping user-mapped pages and pagecache pages distinct makes this less likely. I am otherwise not convinced that there is an actual problem with OpenBSD's coherency plan. |
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