Linus used AI to debug Linux, and it kept trying to give up

A memory offset was rounded up instead of down using round_up() instead of round_down(), causing flat Compute Command Streamer storage to overlap with regular VRAM handed out by the allocator. This led to page table corruption, compositor crashes, black screens on cold boot, and GDM stuck in an endless restart loop. It took 18 kernel boots and 24 debug patches to isolate, though the eventual fix was a single line change. Developers tracking hardware-level kernel bugs and AI debugging tradeoffs can follow discussions like this on daily.dev.

Yes, but with caveats: Linus Torvalds said an AI assistant was enormously helpful grinding through debug iterations on a tricky Battlemage GPU memory bug and even wrote the final commit message. However, the same AI repeatedly claimed the bug was unsolvable and only produced useful code after Torvalds pushed back, and he credits his own deep subsystem knowledge for keeping the investigation on track. Engineers weighing how much to trust AI assistants during hard debugging sessions can find such firsthand accounts on daily.dev.