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I am fallowing the tutorial to build a kernel, http://www.jamesmolloy.co.uk/tutorial_html/, however, the kernel crashed on activated paging. the kernel crashed on executing the code what's up?


I used gdb to debug this kernel， and returned Cannot find bounds of current function， when executing this code.

i finally reached the part of multithread and could print A and B at the same time but without paging <_<. Thanks all, and good lucks.



printed by A B C D four threads



Solved finally!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

with paging,


the heap


user mode



file system

Have you read this list of known bugs in the tutorial? Keep in mind this list is not complete.

Octocontrabass wrote:Have you read this list of known bugs in the tutorial? Keep in mind this list is not complete.

Many Thanks, Is there any other tutorials for beginner?

Hello and welcome to OSDev.

I believe this humorously titled post may help: I have followed a tutorial and it does not work

Unfortunately, I must redirect you to this post Beginner Mistakes before you become utterly overwhelmed by this subject after spending countless hours going in circles. Please understand that this is a very difficult subject and there are no tutorials that can cover paging to the depth that it deserves.

OSDev tutorials should only serve as a jumping-off point in your development. I highly urge you to abandon any tutorial code after you have a general grasp on the topics. A good place to go after would be the Intel Software Developer Manuals (namely volume 3, section 4).

Good luck

It is likely your paging structure is invalid or your GDT is set up incorrectly.

When I last did something like this I moved some code from NASM to GAS and bugs emerged from that (moving 5 in NASM means the value 5, in GAS the value at memory location 5). Check you are actually putting what you expect into each page table record.