Linux page cache can retain sensitive data long after a process exits. Residual memory may be exposed through cold boot attacks, core dumps, hibernation files, kernel exploits, or isolation failures on shared systems. Persistent memory traces are a real security problem. #linux #software #computerscience #programming #code

DRM is the Linux kernel backbone of modern graphics The Direct Rendering Manager (DRM) manages GPU access, buffer allocation, synchronization, and secure multi-process sharing—while KMS handles display control like modesets and page flips. It’s the kernel contract for high-performance rendering. Graphics isn’t magic—it’s kernel engineering. #linux #gpu #software #computerscience #programming