21CTO

Nov 4, 2026 · Fundamentals

Why Linus Torvalds Insists on ECC Memory: Silent Bit Flips Are Real

Linus Torvalds advocates for ECC memory in personal workstations, explaining how silent bit flips corrupt data undetected, detailing ECC's error-correction mechanism, hardware ecosystem barriers, DDR5 On-Die ECC confusion, Linux's RAS/EDAC subsystem, and when developers should invest in ECC for reliable long-running workloads.