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If we can agree that low-level hardware such as CPUs are essentially physical software, then it would seem that there are many bug-free software pieces out ther

If we can agree that low-level hardware such as CPUs are essentially physical software, then it would seem that there are many bug-free software pieces out there. Many operating systems these days seem to have perfect or near perfect memory and thread management. Kernel mode drivers in general require a high level of quality since bugs usually mean death. User mode is where things get sloppy, and front-end Web Development is where things often get extra sloppy.

wglb 11y ago
it would seem that there are many bug-free software pieces out there. I don't think that you can consider CPUs to be bug-free. Just to pick one, Intel got SYSRET wrong: https://blog.xenproject.org/2012/06/13/the-intel-sysret-privilege-escalation/ https://blog.xenproject.org/2012/06/13/the-intel-sysret-priv...
- greenyoda 11y ago
  And don't forget the famous Pentium division bug in the 1990s: https://en.wikipedia.org/wiki/Pentium_FDIV_bug https://en.wikipedia.org/wiki/Pentium_FDIV_bug
  - insoluble 11y ago
    I never said they were all bug-free. I am aware that there have been some problems over the years, but the track record seems much better with CPUs than with most things having what could be called advanced programming.
    - wglb 11y ago
      Having a game over user to kernel exploit available for who knows how long is not my idea of anywhere near bug-free. And who knows what happens or what bugs are fixed when intel/amd push new firmware to the chip.
  - chrisBob 11y ago
    The fact that the famous Pentium division bug is still being talked about speaks highly of processors as bug-free software.