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I was following James M's tutorial on kernel development till I decided to implement paging on my own after Section 5.

I took some ideas from here but now at the end of setting up page directory and page table when I try to enable paging with CR0.PG = 1, qemu triple faults. The specific code in question is here: http://github.com/anomit/mykernel/blob/ ... c/paging.c

If anyone around here has got some time on their hands, they can check out the whole tree of the code for things to make more sense at http://github.com/anomit/mykernel/tree/unstable/src/

Thanks in advance

Looks like all the pages in the page table are marked as non-present.

Dang! This is really embarassing
I don't know why I did unset_present() on the PTEs when I was actually assigning the frames.