One major roadblock I had lately was to manage paging in interrupts. Rust doesn't really like static globals but that is the only way to sanely manage paging in

One major roadblock I had lately was to manage paging in interrupts. Rust doesn't really like static globals but that is the only way to sanely manage paging in interrupts. So I spent probably a day to figure out the correct way to write a small interface to handle a global kernel state variable. There is also plenty of unsafe stuff that won't go away or stuff that is unsafe not because of the code but because x86. For example, you can't properly handle a null pointer in rust, however, at low-level, the pointer 0x00 is completely valid and I hate to have to waste that address because Rust and LLVM won't allow it. The major reason I even bothered to learn Rust for this way because I didn't want to manage all of this in C on top of having only printf as my debugging tool.