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I've got a problem with my recursive page directory (you know, mapping the page directory into itself...): I can only read out or write to the entries, which are currently mapped...or I get a page fault. But I need to write to the unmapped entries to map new pages into virtual memory, so this sucks...
I really don't have any clue, why I get a page fault...I did it nearly the same way in my previous kernel.
any chance you're missing the page table for that entry too ?
or maybe you wanted to write-protect (e.g. W bit cleared in the directory entry) which also makes the mapping of the page table read-only (thus unmodifiable -- pretty nasty oddity i had in Clicker )
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