Torvalds on POSIX threads

A bit later, Linus Torvalds made a case about PID sharing and gave some
example code. He went on to say, about threading: 

  Note that the reason the kernel is not POSIX-compliant is: 

  o the POSIX standard is technically stupid. It's much better to use a
    cleaner fundamental threading model and build on top of that. 
  o things like the above are just so much better and more easily done in
    user space anyway. 

  The reason LinuxThreads has a hard time becoming POSIX-compliant is that
  I refuse to apply stupid patches, and a lot of the patches sent to me
  have been frankly stupid. They've often implemented pthreads
  functionality without any actual thought of how it _could_ be done more
  cleanly with a user/kernel split. 

  ...

http://kt.linuxcare.com/kt20000410_62_print.epl

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