~/talk

Why we’ll never see time travellers of the 80s in year 2038

Talkat NDC Oslo 2020 · 2020-06-08..06-12· [linux-and-operating-systems, security]
links:none on file
slides:none on file

Systems using 32-bit signed time_t maxing at 2,147,483,647 seconds overflow on January 19 2038 and wrap to 1901, breaking time comparisons and timers. C programs, 32-bit CPUs and libraries such as MySQL unix_timestamp returns zero still show the bug; a Boeing 787 generator fault after ~248 days demonstrates the same 32-bit tick overflow in embedded systems. Remediation is concrete: replace 32-bit timestamps with 64-bit timestamps, audit SQL/time functions and long‑running timers, and plan reboots or firmware updates for affected devices.

AI-written summary · about

  1. 0:00Intro
  2. 1:25History of time travel
  3. 6:29How time travel works
  4. 8:25The unix Y2K
  5. 11:15What do we learn
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