4 ms·

Curious how much effort it was. Also, just to confirm: this was more of an exercise project, no practical use for xv6 anymore, right?

• masklinn 7y ago
  > no practical use for xv6 anymore, right? AFAIK xv6 is and has always been a teaching tool, it's never been a "production" system. Whether that's a practical use or not is up to you I guess.
  • tyingq 7y ago
    There's apparently one exception where it was used as the basis for a production system: https://github.com/liwenhaosuper/t6 https://github.com/liwenhaosuper/t6 Pretty interesting as it's still in use today: https://www.trustkernel.com/en/ https://www.trustkernel.com/en/
    • Koshkin 7y ago
      > trusted I am left wondering if this has been sponsored by the (Chinese) government.
• Taniwha 7y ago
  Probably not a lot, I did a V6 port in the early 80s, from memory porting the compiler was most of the work, V6 was probably a couple of months. The MMU is easy, it's a swapping port, the only real weirdness is the context switch which assumes a lot about what the compiler is doing, v7 got that much more right
• geofft 7y ago
  The extremely practical use for the authors is that they're teaching with it - 6.828 (MIT's OS class) this semester is entirely in xv6 on RISC-V in qemu. In years past, lessons were taught from a completed xv6 for x86 and assignments / projects were on top of an incomplete JOS exokernel, also for x86. xv6 has always been a teaching OS, not even a hybrid teaching/production OS like MINIX. (Are you asking about v6 UNIX in general? The practical descendant of that is the BSDs.)