What is your OSDev HELL NAAW! moment?

[hannah]

I'll start. Mine is when I figured out why my BGA driver wasn't setting any pixels... It was page faulting when I accessed the buffer.

[Octacone]

When I realized how poor my memory management was. I wasn't able to do any high resolution GUI because of that.

[dozniak]

Mine was seeing yet another "What is your xxx moment?" post.

[BrightLight]

When I got my OS to boot from SATA using AHCI on QEMU only to find out it doesn't work anywhere else (not in VirtualBox, or even different QEMU builds...)

[Mikumiku747]

I spent about 30 minutes attempting to debug some very simple GDT initialisation before realising I was using lidt instead of lgdt... not my finest moment.

- Mikumiku747

[bauen1]

After wasting over 10 hours debugging gdt and idts just to realize my gdt entries size was 0

[DixiumOS]

>terminal_writechar doesn't work, but terminal_writestring does

Okay, i'll fix that

>terminal_writechar works, but terminal_writestring doesn't

...