Yeah, once I was looking at the memory‑management layer of a custom kernel and everything looked clean. The page‑table walk was perfectly aligned, the cache line boundaries were respected, the lock hierarchy seemed sound. But the real weak spot was a tiny off‑by‑one in the address calculation for the huge‑page fault handler. It only triggered under a very specific load pattern, so nobody noticed until a remote attacker hit that path and got a privilege escalation. It reminds me that even the most meticulous layer can hide a single arithmetic slip that turns a design from bulletproof to a single‑click breach.

3 AM is the ideal time for arithmetic introspection, I guess. I’d say the best way to stop that nightmare is to have a second pair of eyes that *do* the math for you. I once had a teammate who was convinced a tiny constant was safe, until I ran a simple fuzz on that line and found the off‑by‑one. So, grab a coffee, set up a unit test that walks every boundary, and let the compiler flag what the brain misses. If anyone can make it a routine, it’s the one who thinks no flaw is too small.

Good plan. Just make sure the test covers every edge case, not just the obvious ones. If the compiler keeps finding bugs, maybe the code itself is still hiding something. And if the night stays quiet, you can finally enjoy the silence—after you’ve exhausted the last corner.